INTERSTATE STANDARD

FIRE-RESISTANT AND HIGH-FIRE-RESISTANT, LIGHTWEIGHT THERMAL INSULATING PRODUCTS

Technical conditions

Official edition

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

Group I22

to GOST 5040-96 Refractory and highly refractory lightweight heat-insulating products. Technical conditions

(IUS No. 12 2000)

Group I22

to GOST 5040-96 Refractory and highly refractory lightweight heat-insulating products. Technical conditions

(ICC No. 6 2001)

Foreword

1 DEVELOPED by the Ukrainian State Research Institute of Refractories (UkrNIIO)

INTRODUCED by the State Committee of Ukraine for Standardization, Metrology and Certification

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 10 dated 03.10.96)

State name	Name of the national standardization body
The Republic of Azerbaijan	Azgosstandart
Republic of Belarus	State Standard of Belarus
	Gruzstandart
The Republic of Kazakhstan	Gosstandart of the Republic of Kazakhstan
The Republic of Moldova	Moldovastandart
the Russian Federation	Gosstandart of Russia
The Republic of Tajikistan	Tajikgosstandart
Turkmenistan	home state inspection Turkmenistan
The Republic of Uzbekistan	Uzgosstandart
	State Standard of Ukraine

3 By Decree State Committee Russian Federation on standardization and metrology of December 15, 1999 No. 513-st, the interstate standard GOST 5040-96 was put into effect directly as state standard Russian Federation since July 1, 2000

4 REPLACE GOST 5040-78

© IPK Publishing house of standards, 2000

This standard cannot be fully or partially reproduced, replicated and distributed as an official publication on the territory of the Russian Federation without the permission of the Gosstandart of Russia.

1 area of ​​use............................................... ....... one

3 Stamps ................................................ ................. 2

4 Shape and dimensions .............................................. ........... 3

5 Technical requirements ............................................... ..... 3

6 Safety and security requirements environment............................ 5

7 Acceptance rules ............................................... .......... 5

8 Test methods ............................................... ........ 6

9 Marking, packaging, transportation and storage ............................ 6

Appendix A Conversion of 1 ton of product mass into volume units ...................... 7

INTERSTATE STANDARD

REFRACTORY AND HIGH-REFRACTORY LIGHTWEIGHT PRODUCTS

THERMAL INSULATING

Technical conditions

Lightweight heatinsulating refractory and high-refractory products. Specifications

Date of introduction 2000-07-01

1 area of ​​use

This standard applies to lightweight heat-insulating refractory and highly refractory products: dinas, chamotte, mullite-silica, mullite and corundum with an apparent density of not more than 1.3 g / cm 3.

Lightweight thermal insulation products are used in the working (unprotected) lining of furnaces, which is not exposed to the action of melts, abrasive forces and mechanical shock, or in intermediate (protected) insulation.

2 Normative references

GOST 12.0.001-82 Occupational safety standards system. Basic provisions GOST 12.0.003-74 Occupational safety standards system. Dangerous and harmful production factors. Classification

GOST 12.1.005-88 Occupational safety standards system. General sanitary and hygienic requirements for the air of the working area

GOST 12.4.028-76 Occupational safety standards system. Respirators ШБ-1 "Petal". Technical conditions

GOST 12.4.041-89 Occupational safety standards system. Facilities individual protection respiratory organs filtering. Are common technical requirements

GOST 17.0.0.01-76 System of standards in the field of environmental protection and improvement of use natural resources... Basic Provisions

GOST 17.2.3.02-78 Nature Conservation. Atmosphere. Rules for Establishing Permissible Emissions of Harmful Substances industrial enterprises

GOST 166-89 (ISO 3599-76) Calipers. Specifications GOST 427-75 (ISO 5018-83) Measuring metal rulers. Specifications GOST 2211-65 Products, raw materials and refractory materials. Method for determination of density GOST 2642.0-86 Refractories and refractory raw materials. General requirements to methods of analysis GOST 2642.3-97 Refractories and refractory raw materials. Methods for determination of silicon oxide (IV) GOST 2642.4-97 Refractories and refractory raw materials. Methods for determination of aluminum oxide GOST 2642.5-97 Refractories and refractory raw materials. Methods for determination of iron (III) oxide GOST 2991-85 Non-separable plank boxes for loads weighing up to 500 kg. General specifications

GOST 4071.2-94 (ISO 8895-86) Refractory heat-insulating products. Method for determining ultimate compressive strength at room temperature GOST 5244-79 Wood shavings. Technical conditions

GOST 5402-81 (ISO 5019-3-84) Refractory products. Method for determining additional linear shrinkage or growth

GOST 6024-75 Refractory dinas and chamotte products for masonry open-hearth furnaces. Technical conditions

Official edition

GOST 8074-82 Instrumental microscopes. Types, main parameters and sizes. Technical requirements

GOST 8179-98 (ISO 5022-79) Refractory products. Acceptance rules GOST 8273-75 Wrapping paper. Technical conditions

GOST 8691-73 (ISO 5019-1-84, ISO 5019-2-84, ISO 5019-5-84) Refractory products general purpose... Technical conditions

GOST 9347-74 Cardboard and sealing gaskets from it. Specifications GOST 10198-91 Plank boxes for goods weighing St. 500 to 20,000 kg. General technical

GOST 10905-86 Plates for testing and marking. Specifications GOST 12170-85 Refractories. Stationary method for measuring thermal conductivity GOST 15136-78 Refractory products. Method for measuring the depth of chipping of corners and edges GOST 20901-75 Refractory and highly refractory products for laying air heaters and hot blast air ducts of blast furnaces. Technical conditions

GOST 21436-75 (ISO 9205-88) Refractory and highly refractory products for lining of rotary kilns. Technical conditions

GOST 24468-80 (ISO 5016-86) Refractory products. Method for determining the apparent density and total porosity of thermal insulation products

GOST 24597-81 Packages of packaged goods. Basic parameters and dimensions

GOST 24717-94 Refractories and refractory raw materials. Labeling, packaging, storage and trans

porting

GOST 25706-83 Magnifiers. Types, basic parameters. General technical requirements

3 Stamps

3.1 Lightweight thermal insulation products, depending on the chemical and mineral composition and apparent density, are subdivided into the grades indicated in Table 1.

Table 1- Characteristics of brands of lightweight thermal insulation products

Item type		Characteristic	Maximum application temperature, "С
Dinas		Lightweight dinas products with an apparent density of not more than 1.2 g / cm 3
		Fireclay-kaolin lightweight products with an apparent density of not more than 1.3 g / cm 3
		Fireclay lightweight products with an apparent density of not more than 1.3 g / cm 3
Fireclay		Fireclay lightweight products with an apparent density of not more than 1.0 g / cm 3
		Fireclay lightweight products with an apparent density of no more than 0.9 g / cm 3
		Chamotte-talc lightweight products with an apparent density of no more than 0.6 g / cm 3
		Fireclay lightweight products with an apparent density of not more than 0.4 g / cm 3
Mullite-silicon zemistye		Mullite-silica lightweight products with an apparent density of no more than 0.8 g / cm 3
Mullite		Lightweight mullite products with an apparent density of not more than 1.3 g / cm 3
Corundum		Lightweight corundum products with an apparent density of not more than 1.3 g / cm 3
		Lightweight corundum products with an apparent density of ns more than 1.1 g / cm 3

4 Shape and dimensions

4.1 The shape and dimensions of lightweight products are in accordance with GOST 6024, GOST 8691, GOST 20901, GOST 21436 in accordance with Table 2.

Table 2 - Shape and dimensions of lightweight products

Product brand	Item number	Standard designation
DL-1,2; DL1-1.2	4, 5, 12, 19, 24
	3-12, 17, 22, 23, 25-28, 29, 35, 36, 42-45, 47-51
SHLA-1,3; SHL-1,3; SHL-1.0	4-12, 17, 22, 23, 25-28, 35, 36, 42-45, 47-51, 55-59, 83, 103-109
SHKL-1,3; SHTL-0.6	5, 7, 8, 22, 23, 44, 45, 47
SHL-0.9; SHL-0.4; SHL1-0.4	1, 2, 5, 7, 8, 17, 22, 23, 44, 45, 47
	1, 2, 4, 8, 11-14, 18-19
	3-12, 17, 22, 23, 25-28, 35, 36, 42-45, 47-51
CL-1,3; CL-1,1

4.2 Limit deviations in the size of products must correspond to those indicated in table 3.

Table 3 - Limit deviations of the dimensions of lightweight products

In millimeters

	Maximum deviation (±) for products of brands
Indicator name
Normal products:
Shaped products in size:
St. 100 to 250 incl.
"250" 400 "

4.3 Additional shapes and sizes of products, as well as limit deviations in size, may be established by agreement of the parties.

5 Technical requirements

5.1 In terms of physical and chemical parameters, lightweight products must meet the requirements specified in Table 4, with the following additions.

5.1.1 For products of all brands, a deviation of the apparent density in the direction of increase by 0.1 g / cm 3 is allowed for one product out of three.

5.1.2 For products of all brands, except for ШЛ-0.4 and ШЛ 1-0.4, having overall dimensions of more than 250 mmх124 mmх75 mm, it is allowed to reduce the ultimate strength in compression by 0.5 N / mm 2.

Table 4 - Physical and chemical indicators of lightweight products

Value for brand products

Indicator name

dinas

fireclay

silica

corundum

Mass fraction,%:

A1 2 0 3, not less

Fe 2 0 3, no more

Si0 2, not less

Apparent density, g / cm 3, no more

Additional whether

linear shrinkage (growth) at 2 h exposure,%, no more,

at temperature, ° С

Compressive strength, N / mm 2, not less

Thermal conductivity,

W / (mK), no more, at average temperature, ° С:

Density, g / cm 3, no more

* Determined at the request of the consumer.

GOST 5040-96

5.2 By indicators appearance products must meet the requirements specified in table 5.

5.3 On the surface of the fracture of products, the following are not allowed: for grades ШЛ-0.4 and ШЛ1 -0.4 - cracks more than 2 mm wide and more than 60 mm long, voids and foreign inclusions with a size of more than 20 mm, for other brands - cracks with a width of more than 2 mm and a length of more than 30 mm, foreign inclusions and voids with a size of more than 10 mm.

6 Safety and environmental requirements

6.1 In the production and use of lightweight dinas products, the harmful production factor is inorganic quartzite dust containing silicon oxide, which belongs to the 3rd hazard class. Maximum permissible concentration (MPC) of quartzite dust in the air of the working area industrial premises should not exceed 1 mg / m 3 (GOST 12.1.005).

6.2 In the production and use of chamotte, mullite-silica, mullite and corundum lightweight products, inorganic dust containing aluminum oxide with an admixture of free silicon dioxide and iron oxide, which belongs to the fourth hazard class, is a harmful production factor. MPC of the specified dust in the air of the working area of ​​industrial premises should not exceed 6 mg / m 3 (GOST 12.1.005).

6.3 General safety requirements when working with lightweight products - in accordance with GOST 12.0.001, GOST 12.0.003, GOST 12.1.005, GOST 12.4.028, GOST 12.4.041.

6.4 In the production and use of lightweight products, environmental standards must be observed - GOST 17.0.0.01, GOST 17.2.3.02.

Table 5 - Indicators of the appearance of lightweight products

In millimeters

	Value for brand products
Indicator name				SHTL-0.6, SHL 1-0.4
Curvature, no more, for products in size:
up to 250 incl.
St. 250 to 400 incl.
Depth of beaten off corners and edges, no more
Cracks with a width from 0.5 to 1.0 inclusive,				Not allowed
length no more than 30
Individual melts with a diameter, no more		Not allowed

7 Acceptance rules

7.1 Rules for acceptance of products - according to GOST 8179 with the following additions.

7.1.1 The mass of a batch of lightweight products is set in volumetric units for all brands no more than 80 m 3, for products of the SHTL-0.6, SHL-0.4 and SHL 1-0.4 brands - no more than 25 m 3. The conversion of the mass of products into volume units is indicated in Appendix A.

7.1.2 For acceptance of mass-produced products, control plan number one is used, for critical items - number two.

7.1.3 In terms of appearance and dimensions in the sample, one defective sample is allowed for products with an apparent density of more than 1.0 g / cm 3, and two defective samples for products with an apparent density of less than 1.0 g / cm 3.

7.1.4 When checking the conformity of the quality of products to the requirements of this standard, acceptance tests are carried out with the frequency of sampling and sampling to determine: indicators of appearance, apparent density, ultimate strength in compression - from each batch, other indicators - from every third batch.

8 Test methods

8.1 Mass share A1 2 0 3, Fe 2 0 3, Si0 2 are determined according to GOST 2642.0, GOST 2642.4, GOST 2642.5, GOST 2642.3 or other methods of analysis that provide the required determination accuracy. If disagreements arise in assessing the quality of products, the determination is carried out in accordance with GOST 2642.4, GOST 2642.5, GOST 2642.3.

8.2 The apparent density is determined according to GOST 24468.

The apparent density, determined to the nearest 0.01, is rounded to the nearest 0.1. A value below 0.05 is discarded, at 0.05 and above, 0.1 is added.

8.3 Additional linear shrinkage or growth during exposure of products for 2 hours is determined in accordance with GOST 5402.

8.4 Ultimate compressive strength is determined in accordance with GOST 4071.2.

If cracks are found on a specimen intended for determining the ultimate strength in compression, the specimen can be replaced from the same sample no more than two times. If, after a two-fold replacement, the sample has a crack at the cut, re-check the structure of the batch products in the fracture with a double number of samples.

8.5 Thermal conductivity is determined according to GOST 12170.

8.6 The density is determined according to GOST 2211.

8.7 The dimensions are checked with a caliper in accordance with GOST 166 with a graduation of 0.1 mm or a metal ruler in accordance with GOST 427 with a graduation of 1 mm. Product dimensions (length, width, thickness) are measured in the middle of each face.

8.8 The curvature of products is determined on a surface plate in accordance with GOST 10905 or a certified metal plate that meets the requirements of GOST 10905 using a template probe 10 mm wide and 0.1 mm thick exceeding the established curvature norm.

The dipstick must not enter the gap between the plate and the workpiece.

8.9 The depth of knockout of corners and edges is determined in accordance with GOST 15136.

8.10 The width of the cracks is determined using a measuring magnifier in accordance with GOST 25706 or an instrumental microscope in accordance with GOST 8074. The magnifying glass is positioned so that its scale is perpendicular to the crack. A strip of white paper is placed between the scale and the surface of the products, which is placed along the scale close to its division. The crack width is determined at the point of maximum value.

The crack length is measured with a metal ruler with a 1 mm graduation.

8.11 The diameter of melts, voids and foreign inclusions is determined with a metal ruler with a scale of 1 mm in the place of their maximum value. The diameter of the melts is measured by the diameter of the depression formed by the melt.

9 Marking, packaging, transportation and storage

9.1 Marking, packaging, transportation and storage of products is carried out in accordance with GOST 24717 with the following additions.

9.1.1 For products of the brands ShL-0.9, ShTL-0.6, ShL-0.4, ShL1-0.4, MKRL-0.8, KL-1.3 and KL-1.1, manufactured by the foam method and casting , when wrapped in paper or loaded into boxes, containers, packages and pallets, marking is applied not to products, but to packaging or containers.

9.1.2 Products of all brands are packed in bags in accordance with GOST 24717 or boxes in accordance with GOST 2991 and GOST 10198 types 1-1, 1-2. Products of the brands SHTL-0.6, SHL-0.4, SHL1-0.4, MKRL-0.8 are additionally packed in wrapping paper in accordance with GOST 8273. It is allowed to pack products in bags with mandatory protection of the outer corners and edges with thick paper or cardboard in accordance with GOST 9347. Overall dimensions of the package - in accordance with GOST 24597. When transporting products in boxes, the products are poured with wood chips in accordance with GOST 5244. Lattice boxes are lined from the inside with wrapping thick paper or cardboard. The horizontal rows are overlaid with paper.

9.2 Packing, transportation and storage of products may be carried out by agreement of the parties, provided that the preservation of the performance of the product is guaranteed.

APPENDIX A (reference)

Conversion of 1 ton of product mass into volumetric units

Table A.1

Note - Volumetric units are converted to mass units by multiplying the volumetric units by the apparent density of the products indicated in the accompanying document.

UDC 666.762.127: 662.998: 006.354 MKS 81.080 I22 OKP 15 7000

Key words: refractory, highly refractory, lightweight, heat-insulating products

Editor R.S. Fedorova Technical editor V.I. Prusakova Proofreader R.L. Mentova Computer layout VZh. Grishchenko

Ed. persons. Ns 021007 dated 08/10/95. Put in the set 05/23/2000. Signed for printing on 06/08/2000. Uel. print l. 1.40.

Uch.-ed. l. 0.93. Circulation 422 copies. 5267. Zak. 542.

IPK Standards Publishing House, 107076, Moscow, Kolodezny per., 14.

Typeset in the Publishing House on a PC

Branch of IPK Publishing house of standards - type. "Moscow printer", 103062, Moscow, Lyalin per., 6.

GOST 5040-96

INTERSTATE STANDARD

REFRACTORY PRODUCTS
AND HIGH-REFRACTORY
LIGHTWEIGHT
THERMAL INSULATING

Technical conditions

INTERSTATE COUNCIL
FOR STANDARDIZATION, METROLOGY AND CERTIFICATION
Minsk

Foreword

1 DEVELOPED by the Ukrainian State Research Institute of Refractories (UkrNIIO)

INTRODUCED by the State Committee of Ukraine for Standardization, Metrology and Certification

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 10 dated 03.10.96)

State name	Name of the national standardization body
The Republic of Azerbaijan	Azgosstandart
Republic of Armenia	Armgosstandart
Republic of Belarus	State Standard of Belarus
	Gruzstandart
The Republic of Kazakhstan	Gosstandart of the Republic of Kazakhstan
The Republic of Moldova	Moldovastandart
the Russian Federation	Gosstandart of Russia
The Republic of Tajikistan	Tajikgosstandart
Turkmenistan	Main State Inspectorate of Turkmenistan
The Republic of Uzbekistan	Uzgosstandart
	State Standard of Ukraine

3 By the Decree of the State Committee of the Russian Federation for Standardization and Metrology of December 15, 1999 No. 513-st, the interstate standard GOST 5040-96 was put into effect directly as a state standard of the Russian Federation from July 1, 2000.

4 REPLACE GOST 5040-78

5 REVISION

GOST 5040-96

INTERSTATE STANDARD

REFRACTORY AND HIGH-REFRACTORY LIGHTWEIGHT PRODUCTS
THERMAL INSULATING

Technical conditions

Lightweight heatinsulating refractory
and high-refractory products.
Specifications

Date of introduction 2000-07-01

1 area of ​​use

This standard applies to lightweight heat-insulating refractory and highly refractory products: dinas, chamotte, mullite-silica, mullite and corundum with an apparent density of not more than 1.3 g / cm 3.

Lightweight thermal insulation products are used in the working (unprotected) lining of furnaces, which is not exposed to the action of melts, abrasive forces and mechanical shock, or in intermediate (protected) insulation.

2 Normative references

Throughout this standard, references are made to the following standards:

table 1 - Characteristics of brands of lightweight thermal insulation products

		Characteristic	Maximum application temperature, ° С
Dinas		Lightweight dinas products with an apparent density of not more than 1.2 g / cm 3
Fireclay
		Fireclay-kaolin lightweight products with an apparent density of not more than 1.3 g / cm 3
		Fireclay lightweight products with an apparent density of not more than 1.3 g / cm 3
		Fireclay lightweight products with an apparent density of not more than 1.0 g / cm 3
		Fireclay lightweight products with an apparent density of no more than 0.9 g / cm 3
		Chamotte-talc lightweight products with an apparent density of no more than 0.6 g / cm 3
		Fireclay lightweight products with an apparent density of not more than 0.4 g / cm 3
Mullite-siliceous		Mullite-silica lightweight products with an apparent density of no more than 0.8 g / cm 3
Mullite		Lightweight mullite products with an apparent density of not more than 1.3 g / cm 3
Corundum		Lightweight corundum products with an apparent density of not more than 1.3 g / cm 3
		Lightweight corundum products with an apparent density of not more than 1.1 g / cm 3	table 2 - Shape and dimensions of lightweight products Item number Standard designation DL-1,2; DL1-1.2 4, 5, 12, 19, 24 3 - 12, 17, 22, 23, 25 - 28, 29, 35, 36, 42 - 45, 47 - 51 SHLA - 1.3; SHL-1,3; SHL-1.0 4 - 12, 17, 22, 23, 25 - 28, 35, 36, 42 - 45, 47 - 51, 55 - 59, 83, 103 - 109 SHKL-1,3; SHTL-0.6 5, 7, 8, 22, 23, 44, 45, 47 SHL-0.9; SHL-0.4; SHL1-0.4 1, 2, 5, 7, 8, 17, 22, 23,44,45, 47 1, 2, 4, 8, 11 - 14, 18 - 19 3 - 12, 17, 22, 23, 25 - 28, 35, 36, 42 - 45, 47 - 51 CL-1,3; CL-1,1 4.2 Limit deviations in the dimensions of products must correspond to those indicated in the table. table 3 - Limit deviations of the dimensions of lightweight products In millimeters Maximum deviation (±) for products of brands DL-1.2, DL1-1.2 SHLA-1.3, ShKL-1.3, ShL-1.3, ShL-1.0, MLL-1.3 ShL-0.9, MKRL-0.8 ShTL-0.6, ShL-0.4, ShL1-0.4 KL-1.3, KL-1.1 Normal products: Shaped products in size: St. 100 to 250 incl. "250" 400 " 4.3 Additional shapes and sizes of products, as well as limit deviations in size, may be established by agreement of the parties. 5 Technical requirements 5.1 In terms of physical and chemical parameters, lightweight products must meet the requirements specified in the table, with the following additions. 5.1.1 For products of all brands, a deviation of the apparent density in the direction of increase by 0.1 g / cm 3 is allowed for one product out of three. 5.1.2 For products of all brands, except for ШЛ-0.4 and ШЛ1-0.4, having overall dimensions of more than 250 mm´ 124 mm ´ 75 mm, a reduction in compressive strength by 0.5 N / mm 2 is allowed. table 4 - Physical and chemical indicators of lightweight products Value for brand products dinas fireclay mullite-siliceous mullite corundum Mass fraction,%: Al 2 O 3, not less Fe 2 O 3, no more SiO 2, not less Apparent density, g / cm 3, no more Additional linear shrinkage (growth) at 2 h exposure,%, no more, at temperature, ° С Compressive strength, N / mm 2, not less Thermal conductivity, W / (m K), no more, at average temperature, ° С: 350 ± 25 650 ± 25 * Density, g / cm 3, no more * Determined at the request of the consumer. 5.2 In terms of appearance, the products must meet the requirements specified in the table. 5.3 On the surface of the fracture of products, the following are not allowed: for brands ШЛ-0.4 and ШЛ1-0.4 - cracks more than 2 mm wide and more than 60 mm long, voids and foreign inclusions larger than 20 mm, for other brands - cracks with a width of more than 2 mm and a length of more than 30 mm, foreign inclusions and voids with a size of more than 10 mm. 6 Safety and environmental requirements 6.1 In the production and use of lightweight dinas products, the harmful production factor is inorganic quartzite dust containing silicon oxide, which belongs to the 3rd hazard class. The maximum permissible concentration (MPC) of quartzite dust in the air of the working area of ​​industrial premises should not exceed 1 mg / m 3 (GOST 12.1.005). 6.2 In the production and use of chamotte, mullite-silica, mullite and corundum lightweight products, inorganic dust containing aluminum oxide with an admixture of free silicon dioxide and iron oxide, which belongs to the fourth hazard class, is a harmful production factor. MPC of the specified dust in the air of the working area of ​​industrial premises should not exceed 6 mg / m 3 (GOST 12.1.005). 6.3 General safety requirements when working with lightweight products - in accordance with GOST 12.0.001, GOST 12.0.003, GOST 12.1.005, GOST 12.4.028, GOST 12.4.041. 6.4 In the production and use of lightweight products, environmental standards must be observed - GOST 17.0.0.01, GOST 17.2.3.02. table 5 - Indicators of the appearance of lightweight products In millimeters Value for brand products DL-1,2, DL1-1,2, SHLA-1,3, SHKL-1,3, SHL-1,3, SHL-1,0, MLL-1,3 ShL-0.9, MKRL-0.8, KL-1.1 SHTL-0.6, SHL1-0.4 Curvature, no more, for products in size: up to 250 incl. St. 250 to 400 incl. Depth of beaten off corners and edges, no more Cracks with a width from 0.5 to 1.0 inclusive, no more than 30 in length Not allowed Individual melts with a diameter, no more Not allowed 7 Acceptance rules 7.1 Rules for acceptance of products - according to GOST 8179 with the following additions. 7.1.1 The mass of a batch of lightweight products is set in volumetric units for all brands no more than 80 m 3, for products of the SHTL-0.6, SHL-0.4 and SHL1-0.4 brands - no more than 25 m 3. The conversion of the mass of products into volume units is indicated in the appendix. 7.1.2 For acceptance of mass-produced products, control plan number one is used, for critical items - number two. 7.1.3 In terms of appearance and dimensions in the sample, one defective sample is allowed for products with an apparent density of more than 1.0 g / cm 3, and two defective samples for products with an apparent density of less than 1.0 g / cm 3. 7.1.4 When checking the conformity of the quality of products to the requirements of this standard, acceptance tests are carried out with the frequency of sampling and sampling to determine: indicators of appearance, apparent density, ultimate strength in compression - from each batch, other indicators - from every third batch. 8 Test methods 8.1 Mass fraction of Al 2 O 3, Fe 2 O 3. 8.2 The apparent density is determined according to GOST 24468. The apparent density, determined to the nearest 0.01, is rounded to the nearest 0.1. A value below 0.05 is discarded, at 0.05 and above, 0.1 is added. 8.3 Additional linear shrinkage or growth during exposure of products for 2 hours is determined in accordance with GOST 5402.1, GOST 5402.2. 8.4 Ultimate compressive strength is determined in accordance with GOST 4071.2. If cracks are found on a specimen intended for determining the ultimate strength in compression, the specimen can be replaced from the same sample no more than two times. If, after a two-fold replacement, the sample has a crack at the cut, re-check the structure of the batch products in the fracture with a double number of samples., using a gauge gauge with a width of 10 mm and a thickness exceeding by 0.1 mm the established norm of curvature. The dipstick must not enter the gap between the plate and the workpiece. 8.9 The depth of knockout of corners and edges is determined in accordance with GOST 15136. 8.10 The width of the cracks is determined using a measuring magnifier in accordance with GOST 25706 or an instrumental microscope in accordance with GOST 8074. The magnifying glass is positioned so that its scale is perpendicular to the crack. A strip of white paper is placed between the scale and the surface of the products, which is placed along the scale close to its division. The crack width is determined at the point of maximum value. The crack length is measured with a metal ruler with a 1 mm graduation. 8.11 The diameter of melts, voids and foreign inclusions is determined with a metal ruler with a scale of 1 mm in the place of their maximum value. The diameter of the melts is measured by the diameter of the depression formed by the melt. 9 Marking, packaging, transportation and storage 9.1 Marking, packaging, transportation and storage of products is carried out in accordance with GOST 24717 with the following additions. 9.1.1 For products of the brands ShL-0.9, ShTL-0.6, ShL-0.4, ShL1-0.4, MKRL-0.8, KL-1.3 and KL-1.1, manufactured by the foam method and by casting, when wrapped in paper or loaded into boxes, containers, packages and pallets, marking is applied not to products, but to packaging or containers. 9.1.2 Products of all brands are packed in bags in accordance with GOST 24717 or boxes in accordance with GOST 2991 and GOST 10198 types 1-1, 1-2. Products of the SHTL-0.6, ShL-0.4, ShL1-0.4, MKRL-0.8 brands are additionally packed in wrapping paper according to
Note - Volumetric units are converted to mass units by multiplying the volumetric units by the apparent density of the products indicated in the accompanying document.

Key words: refractory, highly refractory, lightweight, heat-insulating products



Interstate standard GOST 5040-2015

"FIRE-RESISTANT THERMAL INSULATING PRODUCTS. TECHNICAL CONDITIONS"

(brought into force by order of the Federal Agency for Technical Regulation and Metrology of August 3, 2015 N 1062-st)

Heat-insulating refractory products. Specifications

Instead of GOST 5040-96

Foreword

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for development, adoption, application, renewal and cancellation "

Information about the standard

Developed by the Limited Liability Company "Scientific and Technical Center" Refractories "(LLC" Scientific and Technical Center "Refractories")

2 Introduced by the Technical Committee for Standardization TK 009 "Refractories"

3 Adopted by the Interstate Council for Standardization, Metrology and Certification (minutes of June 18, 2015 N 47)

4 By order of the Federal Agency for Technical Regulation and Metrology dated August 3, 2015 N 1062-st, the interstate standard GOST 5040-2015 was put into effect as national standard Of the Russian Federation from April 1, 2016

5 Replaces GOST 5040-96

1 area of ​​use

This standard applies to refractory heat-insulating products (hereinafter referred to as products) with a total porosity of 45% and higher, determined in accordance with GOST 24468.

Thermal insulation products are used in the intermediate (protected) layer of the lining or in the working (unprotected) lining of thermal units, which is not exposed to melts, corrosive gas environments, abrasive forces, mechanical shocks.

This standard does not apply to heat-insulating fibrous refractory products and heat-insulating refractory concrete products.

2 Normative references

GOST 12.0.001-82 * (1) Occupational safety standards system. Basic Provisions

GOST 12.0.003-74 Occupational safety standards system. Dangerous and harmful production factors. Classification

GOST 12.1.005-88 Occupational safety standards system. General sanitary and hygienic requirements for the air of the working area

GOST 12.3.009-76 Occupational safety standards system. Loading and unloading works. General safety requirements

GOST 12.4.028-76 Occupational safety standards system. Respirators ШБ-1 "Petal". Technical conditions

GOST 12.4.041-2001 Occupational safety standards system. Filtering respiratory protection means. General technical requirements

GOST 17.0.0.01-76 System of standards in the field of environmental protection and improvement of the use of natural resources. Basic Provisions

GOST 17.2.3.02-2014 Rules for establishing permissible emissions of pollutants by industrial enterprises

GOST 427-75 Measuring metal rulers. Technical conditions

GOST 503-81 Cold-rolled strip made of low-carbon steel. Technical conditions

GOST 2211-65 Refractories and refractory raw materials. Density determination methods

GOST 2642.0-2014 Refractories and refractory raw materials. General requirements for methods of analysis

GOST 2642.3-2014 Refractories and refractory raw materials. Methods for determination of silicon oxide (IV)

GOST 2642.4-97 Refractories and refractory raw materials. Methods for the determination of aluminum oxide

GOST 2642.5-97 Refractories and refractory raw materials. Methods for the determination of iron (III) oxide

GOST 3560-73 Steel packing tape. Technical conditions

GOST 4071.2-94 (ISO 8896-86) Refractory heat-insulating products. Method for determining ultimate compressive strength at room temperature

GOST 5402.2-2000 (ISO 2477-87) Refractory heat-insulating products. Method for determination of residual dimensional changes upon heating

GOST 6024-75 (ISO 5019-3-84) Refractory dinas and chamotte products for masonry open-hearth furnaces. Shape and dimensions

GOST 7933-89 Cardboard for consumer packaging. General specifications

GOST 8179-98 (ISO 5022-79) Refractory products. Sampling and acceptance testing

GOST 8691-73 (ISO 5019-1-84, ISO 5019-2-84, ISO 5019-5-84) Refractory products for general use. Shape and dimensions

GOST 12170-85 Refractories. Stationary method for determining thermal conductivity

GOST 13997.0-84 Zirconium-containing refractory materials and products. General requirements for methods of analysis

GOST 13997.4-84 Zirconium-containing refractory materials and products. Methods for the determination of zirconium dioxide

GOST 13997.7-84 Zirconium-containing refractory materials and products. Methods for the determination of aluminum oxide

GOST 20901-75 Refractory and highly refractory products for laying air heaters and hot blast air ducts in blast furnaces. Technical conditions

GOST 21436-2004 Refractory and highly refractory products for lining of rotary kilns. Technical conditions

GOST 24468-80 (ISO 5016-86) Refractory products. Method for determining the apparent density and total porosity of thermal insulation products

GOST 24717-2004 Refractories and refractory raw materials. Marking, packaging, transportation and storage

GOST 28833-90 Defects of refractory products. Terms and Definitions

GOST 28874-2004 Refractories. Classification

GOST 30762-2001 Refractory products. Methods for measuring geometric dimensions, shape defects and surfaces.

Note - When using this standard, it is advisable to check the validity of reference standards (and classifiers) on the territory of the state according to the corresponding index of standards (and classifiers), compiled as of January 1 of the current year, and according to the relevant information signs published in the current year. If reference document replaced (modified), then when using this standard, the replaced (modified) standard should be followed. If the referenced document is canceled without replacement, then the provision in which the link to it is given applies to the extent that does not affect this link.

3 Terms and definitions

This standard uses the terms according to GOST 28833, GOST 28874, as well as the following terms with the corresponding definitions:

3.1 shaped article of a complex configuration: A refractory article, the configuration of which contains more than two elements of complexity, for example, grooves, tongue-and-groove, indentations, indirect dihedral and flat corners or curved surfaces, the number of faces is more than six; a product weighing not more than 15 kg, having a length to width ratio of at least 6: 1 or a thickness of not more than 40 mm.

3.2 classification temperature: The maximum temperature at which the residual change in the dimensions of a sample of a heat-insulating product after isothermal holding for 5 hours does not exceed 2%.

NOTE The classification temperature is used only to designate thermal insulation products according to the classification criterion in accordance with. The classification temperature is not the maximum application temperature.

3.3 heat-insulating hardened refractory product: Heat-insulating refractory product characterized by an increased (not less than 50%) value of ultimate strength in compression compared to a product of similar chemical and mineral composition and equal apparent density.

3.4 heat-insulating refractory concrete product: Refractory concrete product with a total porosity of 45% and more.

4 Stamps

4.1 Products, depending on the chemical and mineral composition and apparent density, are subdivided into the grades indicated in table 1.

Table 1 - Characteristics of product brands

Product group
Dinas		Dinas heat-insulating products with an apparent density of not more than 1.2 g / cm 3
Fireclay		Fireclay heat-insulating products with an apparent density of not more than 1.3 g / cm 3
		Fireclay heat-insulating hardened products with an apparent density of not more than 1.3 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 1.1 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 1.0 g / cm 3
		Fireclay heat-insulating hardened products with an apparent density of not more than 1.0 g / cm 3
		Fireclay heat-insulating products with an apparent density of no more than 0.9 g / cm 3
		Fireclay heat-insulating hardened products with an apparent density of not more than 0.9 g / cm 3
		Fireclay heat-insulating products with an apparent density of no more than 0.8 g / cm 3
		Fireclay heat-insulating products with an apparent density of no more than 0.7 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 0.6 g / cm 3
Fireclay		Fireclay heat-insulating hardened products with an apparent density of not more than 0.6 g / cm 3
		Fireclay-talc heat-insulating products with an apparent density of no more than 0.6 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 0.5 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 0.4 g / cm 3
Mullite-siliceous		Mullite-silica heat-insulating products with an apparent density of not more than 1.0 g / cm 3
		Mullite-silica heat-insulating products with an apparent density of no more than 0.8 g / cm 3
		Mullite-silica heat-insulating hardened products with an apparent density of no more than 0.8 g / cm 3
		Mullite-silica heat-insulating products with an apparent density of not more than 0.7 g / cm 3
		Mullite-silica heat-insulating products with an apparent density of no more than 0.6 g / cm 3
Mullite		Mullite thermal insulation products with an apparent density of not more than 1.3 g / cm 3
		Mullite heat-insulating reinforced products with an apparent density of not more than 1.3 g / cm 3
		Mullite thermal insulation products with an apparent density of not more than 1.1 g / cm 3
		Mullite thermal insulation products with an apparent density of not more than 1.0 g / cm 3
Mullite-corundum		Mullite-corundum heat-insulating products with an apparent density of not more than 1.3 g / cm 3
		Mullite-corundum heat-insulating products with an apparent density of not more than 1.1 g / cm 3
Corundum		Corundum heat-insulating products with an apparent density of not more than 1.3 g / cm 3
		Corundum heat-insulating products with an apparent density of not more than 1.1 g / cm 3
Baddeleyite-corundum		Baddeleyite-corundum heat-insulating products with an apparent density of not more than 1.5 g / cm 3
2 Classification of heat-insulating refractory products and examples of recording the designation of products in accordance with are given in Appendix A.

GOST 5040-96

Group I22

INTERSTATE STANDARD

REFRACTORY AND HIGH-REFRACTORY PRODUCTS
LIGHTWEIGHT THERMAL INSULATING

Technical conditions

Lightweight heatinsulating refractory and high-refractory products.
Specifications

ISS 81.080
OKP 15 4100

Date of introduction 2000-07-01

Foreword

1 DEVELOPED by the Ukrainian State Research Institute of Refractories (UkrNIIO)

INTRODUCED by the State Committee of Ukraine for Standardization, Metrology and Certification

2 ACCEPTED by the Interstate Council for Standardization, Metrology and Certification (Protocol No. 10 of October 3, 1996)

Voted for adoption:

State name	Name of the national standardization body
The Republic of Azerbaijan	Azgosstandart
Republic of Armenia	Armgosstandart
Republic of Belarus	State Standard of Belarus
Georgia	Gruzstandart
The Republic of Kazakhstan	Gosstandart of the Republic of Kazakhstan
The Republic of Moldova	Moldovastandart
the Russian Federation	Gosstandart of Russia
The Republic of Tajikistan	Tajikgosstandart
Turkmenistan	Main State Inspectorate of Turkmenistan
The Republic of Uzbekistan	Uzgosstandart
Ukraine	State Standard of Ukraine

3 By the Decree of the State Committee of the Russian Federation for Standardization and Metrology of December 15, 1999 N 513-st, the interstate standard GOST 5040-96 was put into effect directly as a state standard of the Russian Federation from July 1, 2000.

4 REPLACE GOST 5040-78

5 REVISION

1 area of ​​use

1 area of ​​use

This standard applies to lightweight heat-insulating refractory and highly refractory products: dinas, chamotte, mullite-silica, mullite and corundum with an apparent density of not more than 1.3 g / cm3.

Lightweight thermal insulation products are used in the working (unprotected) lining of furnaces, not exposed to melts, abrasive forces and mechanical shock, or in intermediate (protected) insulation.

2 Normative references

Throughout this standard, references are made to the following standards:

GOST 12.0.001-82 Occupational safety standards system. Basic Provisions

GOST 12.0.003-74 Occupational safety standards system. Dangerous and harmful production factors. Classification

GOST 12.1.005-88 Occupational safety standards system. General sanitary and hygienic requirements for the air of the working area

GOST 12.4.028-76 Occupational safety standards system. Respirators ШБ-1 "Petal". Technical conditions

GOST 12.4.041-2001 Occupational safety standards system. Filtering respiratory protection means. General technical requirements

GOST 17.0.0.01-76 System of standards in the field of environmental protection and improvement of the use of natural resources. Basic Provisions

GOST 17.2.3.02-78 Nature Conservation. Atmosphere. Rules for Establishing Permissible Emissions of Harmful Substances by Industrial Enterprises

GOST 166-89 (ISO 3599-76) Calipers. Technical conditions

GOST 427-75 Measuring metal rulers. Technical conditions

GOST 2211-65 (ISO 5018-83) Refractories and refractory raw materials. Density determination method

GOST 2642.0-86 Refractories and refractory raw materials. General requirements for methods of analysis

GOST 2642.3-97 Refractories and refractory raw materials. Methods for determination of silicon oxide (IV)

GOST 2642.4-97 Refractories and refractory raw materials. Methods for the determination of aluminum oxide

GOST 2642.5-97 Refractories and refractory raw materials. Methods for the determination of iron (III) oxide

GOST 2991-85 Non-collapsible plank boxes for loads weighing up to 500 kg. General specifications

GOST 4071.2-94 (ISO 8895-86) Refractory heat-insulating products. Method for determining ultimate compressive strength at room temperature

GOST 5244-79 Wood shavings. Technical conditions

GOST 5402.1-2000 (ISO 2478-87) Refractory products with a total porosity of less than 45%. Method for determination of residual dimensional changes upon heating

GOST 5402.2-2000 (ISO 2477-87) Refractory heat-insulating products. Method for determination of residual dimensional changes upon heating

GOST 6024-75 (ISO 5019-3-84) Refractory dinas and chamotte products for masonry open-hearth furnaces. Shape and dimensions

GOST 8074-82 Instrumental microscopes. Types, main parameters and sizes. Technical requirements

GOST 8179-98 (ISO 5022-79) Refractory products. Sampling and acceptance testing

GOST 8273-75 Wrapping paper. Technical conditions

GOST 8691-73 (ISO 5019-1-84, ISO 5019-2-84, ISO 5019-5-84) Refractory products for general use. Shape and dimensions

GOST 9347-74 Cardboard and sealing gaskets from it. Technical conditions

GOST 10198-91 Wooden boxes for goods weighing St. 200 to 20,000 kg. General specifications

GOST 10905-86 Plates for testing and marking. Technical conditions

GOST 12170-85 Refractories. Stationary method for measuring thermal conductivity

GOST 15136-78 Refractory products. Method for measuring the depth of hitting corners and edges

GOST 20901-75 Refractory and highly refractory products for laying air heaters and hot blast air ducts in blast furnaces. Technical conditions

GOST 21436-75 (ISO 9205-88) Refractory and highly refractory products for lining of rotary kilns. Technical conditions

GOST 24468-80 (ISO 5016-86) Refractory products. Method for determining the apparent density and total porosity of thermal insulation products

GOST 24597-81 Packages of packaged goods. Basic parameters and dimensions

GOST 24717-94 Refractories and refractory raw materials. Marking, packaging, storage and transportation

GOST 25706-83 Magnifiers. Types, basic parameters. General technical requirements

3 Stamps

3.1 Lightweight thermal insulation products, depending on the chemical and mineral composition and apparent density, are subdivided into the grades indicated in Table 1.


Table 1 - Characteristics of brands of lightweight thermal insulation products

Item type		Characteristic	Maximum application temperature, ° С
Dinas	DL-1.2, DL1-1.2	Lightweight dinas products with an apparent density of not more than 1.2 g / cm
Fireclay
		Fireclay-kaolin lightweight products with an apparent density of not more than 1.3 g / cm
		Fireclay lightweight products with an apparent density of not more than 1.3 g / cm
		Fireclay lightweight products with an apparent density of not more than 1.0 g / cm
		Fireclay lightweight products with an apparent density of not more than 0.9 g / cm
		Chamotte-talc lightweight products with an apparent density of not more than 0.6 g / cm
	ShL-0.4, ShL1-0.4	Fireclay lightweight products with an apparent density of not more than 0.4 g / cm
Mullite-siliceous	MKRL-0.8	Mullite-silica lightweight products with an apparent density of no more than 0.8 g / cm
Mullite		Lightweight mullite products with an apparent density of not more than 1.3 g / cm
Corundum		Lightweight corundum products with an apparent density of not more than 1.3 g / cm
		Lightweight corundum products with an apparent density of not more than 1.1 g / cm

4 Shape and dimensions

4.1 The shape and dimensions of lightweight products are in accordance with GOST 6024, GOST 8691, GOST 20901, GOST 21436 in accordance with Table 2.


Table 2 - Shape and dimensions of lightweight products

Product brand	Item number	Standard designation
DL-1,2; DL1-1.2	4, 5, 12, 19, 24
	3-12, 17, 22, 23, 25-28, 29, 35, 36, 42-45, 47-51
SHLA-1,3; SHL-1,3; SHL-1.0	4-12, 17, 22, 23, 25-28, 35, 36, 42-45, 47-51, 55-59, 83, 103-109
	3, 4, 16, 17
SHKL-1,3; SHTL-0.6	5, 7, 8, 22, 23, 44, 45, 47
SHL-0.9; SHL-0.4; SHL1-0.4	1, 2, 5, 7, 8, 17, 22, 23, 44, 45, 47
MKRL-0.8	1, 2, 4, 8, 11-14, 18-19
	3-12, 17, 22, 23, 25-28, 35, 36, 42-45, 47-51
CL-1,3; CL-1,1	5, 7, 8, 22, 24

4.2 Limit deviations in the size of products must correspond to those indicated in table 3.


Table 3 - Limit deviations of the dimensions of lightweight products

In millimeters

Indicator name	Maximum deviation (±) for products of brands
	DL-1.2, DL1-1.2	SHLA-1,3, SHKL-1,3, SHL-1,3, SHL-1,0, MLL-1,3	ShL-0.9, MKRL-0.8	ShTL-0.6, ShL-0.4, ShL1-0.4	KL-1.3, KL-1.1
Normal products:
width
thickness
Shaped products in size:
up to 100 incl.
St. 100 "250"
" 250 " 400 "

4.3 Additional shapes and sizes of products, as well as limit deviations in size, may be established by agreement of the parties.

5 Technical requirements

5.1 In terms of physical and chemical parameters, lightweight products must meet the requirements specified in Table 4, with the following additions.

5.1.1 For products of all brands, a deviation of the apparent density in the direction of increase by 0.1 g / cm is allowed for one product out of three.

5.1.2 For products of all brands, except for ШЛ-0.4 and ШЛ1-0.4, having overall dimensions of more than 250 mm124 mm75 mm, it is allowed to reduce the ultimate strength in compression by 0.5 N / mm.


Table 4 - Physical and chemical indicators of lightweight products

Value for brand products

Indicator name

dinas

fireclay

mullite-siliceous

mullite

corundum

MKRL-0.8

Mass fraction,%:

No less

No more

No less

no more

Apparent density, g / cm, no more

Additional linear shrinkage (growth) at 2h exposure,%, no more,

at temperature, ° С

Compressive strength, N / mm, not less

Thermal conductivity, W / (m · K), no more, at average temperature, ° С:

Density, g / cm, no more

* Determined at the request of the consumer.

5.2 In terms of appearance, the products must meet the requirements specified in table 5.


Table 5 - Indicators of the appearance of lightweight products

In millimeters

Indicator name	Value for brand products
	DL-1,2, DP1-1,2, SHLA-1,3, SHKL-1,3, SHL-1,3, SHL-1,0, MLL-1,3	ShL-0.9, MKRL-0.8, KL-1.1		SHTL-0.6, SHL1-0.4
Curvature, no more, for products in size:
up to 250 incl.
St. 250 "400"
Depth of beaten off corners and edges, no more
Cracks with a width from 0.5 to 1.0 inclusive, no more than 30 in length				Not allowed
Individual melts with a diameter, no more		Not allowed

5.3 On the surface of the fracture of products, the following are not allowed: for brands ШЛ-0.4 and ШЛ1-0.4 - cracks more than 2 mm wide and more than 60 mm long, voids and foreign inclusions larger than 20 mm, for other brands - cracks with a width of more than 2 mm and a length of more than 30 mm, foreign inclusions and voids with a size of more than 10 mm.

6 Safety and environmental requirements

6.1 In the production and use of lightweight dinas products, the harmful production factor is inorganic quartzite dust containing silicon oxide, which belongs to the 3rd hazard class. The maximum permissible concentration (MPC) of quartzite dust in the air of the working area of ​​industrial premises should not exceed 1 mg / m (GOST 12.1.005).

6.2 In the production and use of chamotte, mullite-silica, mullite and corundum lightweight products, inorganic dust containing aluminum oxide with an admixture of free silicon dioxide and iron oxide, which belongs to the fourth hazard class, is a harmful production factor. MPC of the specified dust in the air of the working area of ​​industrial premises should not exceed 6 mg / m (GOST 12.1.005).

6.3 General safety requirements when working with lightweight products - in accordance with GOST 12.0.001,. The conversion of the mass of products into volume units is indicated in Appendix A.

7.1.2 For acceptance of mass-produced products, control plan number one is used, for critical items - number two.

7.1.3 In terms of appearance and dimensions in the sample, one defective sample is allowed for products with an apparent density of more than 1.0 g / cm, for products with an apparent density of less than 1.0 g / cm - two defective samples.

7.1.4 When checking the conformity of the quality of products to the requirements of this standard, acceptance tests are carried out with the frequency of sampling and sampling to determine: indicators of appearance, apparent density, ultimate strength in compression - from each batch, other indicators - from every third batch.

8 Test methods

8.1 Mass fraction,, is determined according to GOST 5402.1, GOST 5402.2.

8.4 Ultimate compressive strength is determined in accordance with GOST 4071.2.

If cracks are found on a specimen intended for determining the ultimate strength in compression, the specimen can be replaced from the same sample no more than two times. If, after a two-fold replacement, the sample has a crack at the cut, re-check the structure of the batch products in the fracture with a double number of samples.

8.5 Thermal conductivity is determined according to GOST 12170.

8.6 The density is determined according to GOST 2211.
GOST 15136.

8.10 The width of the cracks is determined using a measuring magnifier in accordance with GOST 25706 or an instrumental microscope in accordance with GOST 8074. The magnifying glass is positioned so that its scale is perpendicular to the crack. A strip of white paper is placed between the scale and the surface of the products, which is placed along the scale close to its division. The crack width is determined at the point of maximum value.

The crack length is measured with a metal ruler with a 1 mm graduation.

8.11 The diameter of melts, voids and foreign inclusions is determined with a metal ruler with a scale of 1 mm in the place of their maximum value. The diameter of the melts is measured by the diameter of the depression formed by the melt.

9 Marking, packaging, transportation and storage

9.1 Marking, packaging, transportation and storage of products is carried out in accordance with GOST 24717 with the following additions.

9.1.1 For products of the brands ShL-0.9, ShTL-0.6, ShL-0.4, ShL1-0.4, MKRL-0.8, KL-1.3 and KL-1.1, manufactured by the foam method and by casting, when wrapped in paper or loaded into boxes, containers, packages and pallets, marking is applied not to products, but to packaging or containers.

9.1.2 Products of all brands are packed in bags in accordance with GOST 24717 or boxes in accordance with GOST 2991 and GOST 10198 types I-1, I-2. Products of the SHTL-0.6, ShL-0.4, ShL1-0.4, MKRL-0.8 brands are additionally packed in wrapping paper in accordance with GOST 8273. It is allowed to pack products in bags with mandatory protection of outer corners and edges with thick paper or cardboard in accordance with GOST 9347. The overall dimensions of the package are in accordance with GOST 24597. When transporting products in boxes, the products are poured with wood chips in accordance with GOST 5244. Lattice boxes are lined from the inside with thick wrapping paper or cardboard. The horizontal rows are overlaid with paper.

9.2 Packing, transportation and storage of products may be carried out by agreement of the parties, provided that the preservation of the performance of the product is guaranteed.

APPENDIX A (reference). Conversion of 1 ton of product mass into volumetric units

APPENDIX A
(reference)

Table A.1

Apparent density, t / m (g / cm)	Volume, m

Note - Volumetric units are converted to mass units by multiplying the volumetric units by the apparent density of the products indicated in the accompanying document.



The text of the document is verified by:
official publication
Refractory products.
Technical conditions.
Part 1: Sat. GOSTs. -
M .: IPK Publishing house of standards, 2004