Interstate standard GOST 5040-2015

"FIRE-RESISTANT AND HEAT-INSULATING PRODUCTS. SPECIFICATIONS"

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

Heat insulating refractor 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 the development, adoption, application, renewal and cancellation

About the standard

Developed by the Limited Liability Company "Scientific and Technical Center "Refractories" (LLC "NTC "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 of August 3, 2015 N 1062-st, the interstate standard GOST 5040-2015 was put into effect as national standard Russian Federation since April 1, 2016

5 Instead of 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% or more, determined in accordance with GOST 24468.

Heat-insulating products are used in the intermediate (protected) lining layer or in the working (unprotected) lining of thermal units, which is not exposed to melts, aggressive gaseous media, 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. Key points

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

GOST 12.1.005-88 System of labor safety standards. 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 requirements security

GOST 12.4.028-76 Occupational safety standards system. Respirators ShB-1 "Petal". Specifications

GOST 12.4.041-2001 Occupational safety standards system. Facilities personal protection respiratory organs filtering. Are common technical requirements

GOST 17.0.0.01-76 System of standards in the field of nature protection and improvement of use natural resources. Key points

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

GOST 427-75 Measuring metal rulers. Specifications

GOST 503-81 Cold-rolled low-carbon steel strip. Specifications

GOST 2211-65 Refractories and refractory raw materials. Methods for determining density

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 the 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 oxide (III)

GOST 3560-73 Steel packing tape. Specifications

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

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

GOST 6024-75 (ISO 5019-3-84) Refractory dinas and fireclay products for laying 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 general purpose. 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 of blast furnaces. Specifications

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

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 in 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 corresponding information indicators published in the current year. If reference document replaced (modified), then when using this standard, you should be guided by the replaced (modified) standard. If the referenced document is canceled without replacement, the provision in which the link to it is given applies to the extent that this link is not affected.

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 product of complex configuration: Refractory product, the configuration of which contains more than two elements of complexity, for example, grooves, tongues, recesses, indirect dihedral and flat corners or curved surfaces, the number of faces is more than six; product weighing not more than 15 kg, having a length to width ratio of not less than 6:1 or a thickness 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 exposure for 5 hours does not exceed 2%.

Note - The classification temperature is used only to designate heat-insulating products according to the classification feature in accordance with. The classification temperature is not the maximum application temperature.

3.3 heat-insulating hardened refractory product: A heat-insulating refractory product characterized by an increased (by at least 50%) compressive strength in comparison with a product of a similar chemical-mineral composition and equal apparent density.

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

4 Stamps

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

Table 1 - Characteristics of product brands

Product group
Dinas		Dynas thermal insulation 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 reinforced 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 reinforced products with an apparent density of not more than 1.0 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 0.9 g / cm 3
		Fireclay heat-insulating reinforced products with an apparent density of not more than 0.9 g / cm 3
		Fireclay heat-insulating products with an apparent density of not more than 0.8 g / cm 3
		Fireclay heat-insulating products with an apparent density of not 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 reinforced products with an apparent density of not more than 0.6 g / cm 3
		Fireclay-talc heat-insulating products with an apparent density of not 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-silica		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 not more than 0.8 g / cm 3
		Mullite-silica heat-insulating hardened products with an apparent density of not 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 not 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 heat-insulating 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 product designations in accordance with are given in Appendix A.

GOST 5040-96

Group I22

INTERSTATE STANDARD

REFRACTORY AND HIGHLY REFRACTORY PRODUCTS
LIGHTWEIGHT THERMAL INSULATION

Specifications

Lightweight heatinsulating refractory and high-refractory products.
Specifications

MKS 81.080
OKP 15 4100

Introduction date 2000-07-01

Foreword

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

INTRODUCED State Committee of Ukraine on standardization, metrology and certification

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (minutes N 10 of October 3, 1996)

Voted to accept:

State name	Name of the national standardization body
The Republic of Azerbaijan	Azgosstandart
Republic of Armenia	Armstate standard
Republic of Belarus	State Standard of Belarus
Georgia	Gruzstandard
The Republic of Kazakhstan	State Standard of the Republic of Kazakhstan
The Republic of Moldova	Moldovastandard
the Russian Federation	Gosstandart of Russia
The Republic of Tajikistan	Tajik State Standard
Turkmenistan	home state inspection Turkmenistan
The Republic of Uzbekistan	Uzgosstandart
Ukraine	State Standard of Ukraine

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

4 INSTEAD OF 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, fireclay, mullite-silica, mullite and corundum with an apparent density of not more than 1.3 g/cm.

Lightweight heat-insulating products are used in the working (unprotected) lining of furnaces that are not exposed to melts, abrasive forces and mechanical shocks, or in intermediate (protected) insulation.

2 Normative references

This standard uses references to the following standards:

GOST 12.0.001-82 System of labor safety standards. Key points

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

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

GOST 12.4.028-76 Occupational safety standards system. Respirators ShB-1 "Petal". Specifications

GOST 12.4.041-2001 Occupational safety standards system. Means of individual protection of respiratory organs filtering. General technical requirements

GOST 17.0.0.01-76 System of standards in the field of nature protection and improvement of the use of natural resources. Key points

GOST 17.2.3.02-78 Nature protection. Atmosphere. Rules for establishing permissible emissions of harmful substances by industrial enterprises

GOST 166-89 (ISO 3599-76) Calipers. Specifications

GOST 427-75 Measuring metal rulers. Specifications

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 the 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 oxide (III)

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 the compressive strength at room temperature

GOST 5244-79 Wood chips. Specifications

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

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

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

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

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

GOST 8273-75 Wrapping paper. Specifications

GOST 8691-73 (ISO 5019-1-84, ISO 5019-2-84, ISO 5019-5-84) General purpose refractory products. Shape and dimensions

GOST 9347-74 Gasketboard and gaskets from it. Specifications

GOST 10198-91 Wooden boxes for goods weighing St. 200 to 20000 kg. General specifications

GOST 10905-86 Calibration and marking plates. Specifications

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

GOST 15136-78 Refractory products. Method for measuring the depth of broken corners and ribs

GOST 20901-75 Refractory and highly refractory products for laying air heaters and hot blast air ducts of blast furnaces. Specifications

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

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. Main parameters and dimensions

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

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

3 stamps

3.1 Lightweight heat-insulating products, depending on the chemical and mineral composition and apparent density, are divided into grades indicated in table 1.


Table 1 - Characteristics of brands of lightweight heat-insulating products

Product type		Characteristic	Maximum application temperature, °C
Dinas	DL-1.2, DL1-1.2	Dinas lightweight 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
		Fireclay-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-silica	MKRL-0.8	Mullite-silica lightweight products with an apparent density of not more than 0.8 g/cm
Mullite		Mullite lightweight products with an apparent density of not more than 1.3 g/cm
Corundum		Corundum lightweight products with an apparent density of not more than 1.3 g/cm
		Corundum lightweight 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 - according to 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; SL-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
SL-0.9; SL-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 product dimensions must correspond to those indicated in table 3.


Table 3 - Limit deviations in the dimensions of lightweight products

In millimeters

Name of indicator	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	CL-1.3, CL-1.1
Normal products:
width
thickness
Shaped products size:
up to 100 inclusive
St. 100" 250"
" 250 " 400 "

4.3 Additional shapes and sizes of products, as well as maximum deviations in size, can be set by agreement of the parties.

5 Technical requirements

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

5.1.1 For products of all brands, the apparent density may deviate upward by 0.1 g/cm for one product out of three.

5.1.2 For products of all grades, except ShL-0.4 and ShL1-0.4, having overall dimensions of more than 250 mm124 mm75 mm, a decrease in compressive strength by 0.5 N/mm is allowed.


Table 4 - Physical and chemical parameters of lightweight products

Significance for product brands

Name of indicator

dinas

fireclay

mullite- siliceous- unearthly

mullite

corundum

MKRL-0.8

Mass fraction, %:

Not less than

No more

Not less than

no more

Apparent density, g/cm, no more

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

at temperature, °C

Compressive strength, N/mm, not less than

Thermal conductivity, W/(m K), not more, at average temperature, °C:

Density, g/cm, no more

* Determined at the request of the consumer.

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


Table 5 - Indicators of the appearance of lightweight products

In millimeters

Name of indicator	Significance for product brands
	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 of size:
up to 250 incl.
St. 250"400"
Depth of broken corners and ribs, no more
Cracks with a width of 0.5 to 1.0 inclusive, no more than 30				Not allowed
Separate smelts with a diameter, no more		Not allowed

5.3 On the fracture surface of products are not allowed: for grades ShL-0.4 and ShL1-0.4 - cracks with a width of more than 2 mm and a length of more than 60 mm, voids and foreign inclusions larger than 20 mm, for other grades - cracks with a width of more than 2 mm and more than 30 mm long, foreign inclusions and voids larger than 10 mm.

6 Safety and environmental requirements

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

6.2 In the production and use of fireclay, mullite-silica, mullite and corundum lightweight products, a harmful production factor is inorganic dust containing aluminum oxide with an admixture of free silicon dioxide and iron oxide, which belongs to the fourth hazard class. 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 - according to GOST 12.0.001,. The conversion of the mass of products into volume units is indicated in Appendix A.

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

7.1.3 In terms of appearance and size in the sample, one defective sample is allowed for products with an apparent density of more than 1.0 g / cm 3, 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 with the requirements of this standard, acceptance tests are carried out with the frequency of sampling and sampling to determine: appearance indicators, apparent density, compressive strength - from each lot, other indicators - from every third lot.

8 Test methods

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

8.4 The compressive strength is determined according to GOST 4071.2.

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

8.5 Thermal conductivity is determined according to GOST 12170.

8.6 Density is determined according to GOST 2211.
GOST 15136.

8.10 The width of the cracks is determined using a measuring magnifier according to GOST 25706 or an instrumental microscope according to 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 width of the crack is determined in the place of maximum value.

The length of the crack is measured with a metal ruler with a division value of 1 mm.

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

9 Marking, packaging, transport 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 grades 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 wrapping them in paper or loading them into boxes, containers, bags and pallets, the 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 according to GOST 8273. It is allowed to pack products in packages with mandatory protection of outer corners and ribs with thick paper or cardboard in accordance with GOST 9347. Overall dimensions of the package - according to GOST 24597. When transporting products in boxes, the products are sprinkled with wood shavings in accordance with GOST 5244. Trellised boxes are lined from the inside with wrapping thick paper or cardboard. Horizontal rows are lined with paper.

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

APPENDIX A (informative). Converting 1 ton of mass of products into volume units

APPENDIX A
(reference)

Table A.1

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

Note - Volume units are converted to mass units by multiplying volume 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.
Specifications.
Part 1: Sat. GOSTs. -
Moscow: IPK Standards Publishing House, 2004

LIGHTWEIGHT-HEAT-INSULATING FIRE-RESISTANT AND HIGH-REFRACTORY

TECHNICAL CONDITIONS

GOST 5040-78 (ST SEV 2628-80)

Official edition

PUBLISHING HOUSE OF STANDARDS Moscow

UDC 666.76: 006.354 Group I22

STATE STANDARD OF THE UNION OF THE SSR

PRODUCTS LIGHTWEIGHT - THERMAL INSULATION REFRACTORY AND HIGHLY REFRACTORY Specifications

Light-weight heat-insulating refractory and high-refractory products. Specifications

(CT SEV 2628-80)

Valid from 01.01.80" in terms of products of brands MKRL-1.0, MKRL-0.7 and KL 1.1 from 01.01.81

This standard applies to lightweight - heat-insulating refractory and highly refractory products: dinas, fireclay, mullite-silica, mullite and corundum with an apparent density of 0.4-1.3 g / cm 3.

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

1. BRANDS, BASIC PARAMETERS AND DIMENSIONS

1.1. Lightweight products, depending on the chemical-mineral composition and apparent density, are divided into grades indicated in Table. one.

Official publication Reprint prohibited

© Standards Publishing, 1978 © Standards Publishing, 1993 Reissue with amendments

at a rate of 50°C/h. At the maximum application temperature, the samples should be kept for 12 hours.

Shrinkage is measured at five points along the length of the sample to the nearest 0.1 mm. The points to be measured must be chosen at a distance of 15 mm from the edge of the specimen.

The measurement result is taken as the arithmetic mean of the linear shrinkage measured in five places. Of the five values ​​obtained, four values ​​should not deviate from the arithmetic mean by more than 2%.

4.2, 4.3. (Changed edition, Rev. No. 1, 2).

4.3a. The maximum temperature for the use of products manufactured according to clause 1.1a is determined according to clause 4.3 on samples with a length and width of 100 to 130 mm and a thickness of 60 to 70 mm cut from the product.

4.4. The compressive strength is determined according to GOST 4071-80.

For products from which a standard sample cannot be cut, the compressive strength is determined according to clause 1.1 of GOST 4071-80.

If cracks are found on the sample intended for determining the compressive strength, the sample can be replaced from the same sample no more than two times. If, after a double replacement, the sample has a crack on the cut, re-check the structure of the lot in the fracture on twice the number of samples.

4.5. Thermal conductivity is determined according to GOST 12170-85.

(Revised edition, Rev. No. 1).

4.7. The dimensions are checked with a caliper (GOST 166-89) with a division value of 0.1 mm or a metal ruler (GOST 427-75) with a division value of 1 mm. Product dimensions (length, width, thickness) are measured in the middle of each face.

(Revised edition, Rev. No. 3).

4.8. The curvature (deflection arrow) is determined on a calibration plate (GOST 10905-86) or calibration rulers (GOST 8026-92) using a probe 10 mm wide and 0.1 mm thicker than the established curvature norm. The probe must not enter the gap between the plate or ruler and the product.

(Revised edition, Rev. No. 3).

4.9. The depth of broken corners and ribs is determined according to GOST 15136-78.

4.10. The width of the cracks is determined using a measuring magnifier according to GOST 25706-83.

S. 2 GOST 5040-78

Table 1

Product type		Product Feature	Maximum application temperature, °C
Dinas		Dinas lightweight products with an apparent density of 1.2 g/cm 3
fireclay
		Fireclay-kaolin products with an apparent density of 1.3 g / cm 3
		Fireclay lightweight products with an apparent density of 1.3 g / cm 3
		Fireclay lightweight products with an apparent density of 1.0 g / cm 3
		Fireclay lightweight products with an apparent density of 0.9 g / cm 3
		Fireclay-talc lightweight products with an apparent density of 0.6 g / cm 3
		Fireclay lightweight products with an apparent density of 0.4 g / cm 3
silica		Mullite-silica lightweight products with an apparent density of 0.8 g/cm 3
Mullite		Mullite lightweight products with an apparent density of 1.3 g / cm 3
Corundum		Corundum lightweight products with an apparent density of 1.3 g / cm 3
		Corundum lightweight products with an apparent density of 1.1 g / cm 3

Notes:

1. Products of the ShTL-0.6, MKRL-0.8 brands are also used in carbon-containing media.

2. Products of brand KL-1.3 are also used in dry hydrogen at 1500°C.

1La. It is allowed to manufacture products (designations) depending on the chemical and mineral composition, maximum application temperature, apparent density indicated in Table. 1a, 16, 1c.

GOST 6040-78 S. 3

Table Ha

Example symbol heat-insulating fireclay product with an apparent density of 0.4 g / cm 3, with a compressive strength of at least 1.0 MPa, thermal conductivity of not more than 0.20 W / (m>K) and a maximum application temperature of 1250 ° C:

(Introduced additionally, Rev. No. 1).

1.2. The shape and dimensions of lightweight products must correspond to those indicated in table. 2, 3 and hell. 1-3 or drawings" agreed by the manufacturer with the consumer.

The mass and volume of products of grades MK.RL-0.8 and KL-1.3 are given in the appendix.

Products brand KL-1,3

S. 4 GOST 5040-78

(Revised edition, Rev. No. 3).

table 2
Product brand	Product number according to GOST 8691-73
DL-1.2; DL1-1.2	3-12, 17, 22, 23, 25-28, 29, 35. 36, 42-45, 47-51
	3-12, 17, 22, 23, 25-28, 35, 36, 42-45, 47-51
SHLA-1.3; SL-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
SL-0.9; SL-0.4; SHL1-0.4	1, 2, 5, 7, 8, 17, 22, 23, 44, 45, 47
	1, 2, 4-8, 11-14, 16-19

Note. Products of the brand DL-1.2, DLY.2 are also manufactured in accordance with GOST 6024-75 No. 4, 5, 12, 19, 24 and in accordance with GOST 20901-75 No. 1, 7, 8, 10, products of the ShLA-1.3 brands , ShL-1.3 and ShL-1.0 are also manufactured according to GOST 21436-75 No. 3, 4, 16, 17.

GOST 5040-78 S. 5

Table 3

(Changed edition, Rev. No. 1, 2, 3).

1.3. (Deleted, Rev. No. 3).

1.4. Limit deviations in dimensions and curvature of products must correspond to those indicated in Table. 4.

Table 4

	Limit deviations (±) for products of brands
Name indicator		SHLA-1.3 SHKL-1.3 SHL-1.3 SHL-1.0 ML L -1.3			ShTL-0.6 ShL 1-0.4
Products of normal sizes, mm:
Shaped products, size, mm:
St. 100 to 250 incl.
St. 250 to 400 incl.
Curvature, for products size, mm:
up to 250 incl.
St. 250 to 400 incl.

(Revised edition, Rev. No. 3).

2. TECHNICAL REQUIREMENTS

2.1. Light weight products shall be manufactured in accordance with the requirements of this standard.

(Changed edition, Rev. No. 1, 3).

2.2. According to physical and chemical indicators, products manufactured according to clause 1.1 must meet the requirements specified in Table. 5.

Table 5

Norm for products

dinas

fireclay

mullites

corundum

Name

indicator

1. Mass fraction of A1 2 0 3 , %, not less than

2. Mass fraction of Fe 2 0 3,%, no more

3. Mass fraction of Si0 2,

4. Apparent density, g/cm3, no more

5. Compressive strength, N / mm 2, not

6. Thermal conductivity,

W / (M "K), referred to the average temperature of the sample, not more than:

7. Density, g / cm 3, not

* At the request of the consumer.

(Changed edition, Rev. No. 3),

S. 6 GOST 5040--78

GOST 5040-78 S. 7

2.3. For all products, except for the ShTL-0.6 and KL-1.3 grades, the apparent density may deviate upward by 0.1 g/cm 3 for one product out of three.

2.2, 2.3. (Revised edition, Rev. No. 3).

2.4. For products of the ShL-1.0 brand, a deviation in the value of the compressive strength in the direction of decrease by 0.5 MPa is allowed for one product out of three.

For fittings of grades DL-1.2, DL1-1.2, ShLA-1.3, having overall dimensions of more than 250x124x75 mm, a compressive strength of at least 4.0 MPa is allowed and for products of grades ShKL-1.3 , ShL-1.3 - 3.0 MPa.

(Changed edition, Rev. No. 1, 2).

2.5. (Deleted, Rev. No. 1).

2.6. In terms of the appearance of the product, manufactured no-p. 1.1 must comply with the requirements set forth in paragraphs. 2.6.1-2.6.4.

2.6.1. Depth of broken corners and ribs for products of the ShTL-0.6, ShL1-0.4, KL-1.3 brands - no more than 5 mm, for the ShL-0.4 brand - no more than 10 mm, other brands - no more than 7 mm .

2.6.2. Cracks on the surface of products of all grades, except for grades ShTL-0.6 and ShL1-0.4, are allowed with a width of 0.5 to 1 mm inclusive, no more than 30 mm long; for products of the ShTL-0.6 and ShL 1-0.4 brands, it is not allowed.

2.6.3. Separate smelting on the surface of products of grades ShL-0.9, ShTL-0.6, ShL-0.4, ShL1-0.4, MKRL-0.8, KL-1.3 and KL-1.1 - not allowed ; for other brands of products, separate smelting with a diameter of not more than 5 mm is allowed.

2.6.4. On the fracture surface of lightweight products of all grades, except for grades ShL-0.4 and ShL 1-0.4, foreign inclusions, voids larger than 10 mm, cracks more than 2 mm wide and more than 30 mm long are not allowed. For products of the ShL-0.4 and ShL 1-0.4 grades, cracks with a width of more than 2 mm and a length of 60 mm, voids and foreign inclusions with a size of more than 20 mm are not allowed.

2.6. (Changed edition, Revision, No. 3).

2.7. Products manufactured according to paragraph 1.1a in terms of physical and chemical indicators and appearance indicators must meet the requirements specified in Table. 5a and 56.

2.8. The maximum temperature for the use of products manufactured according to clause 1.1 is the temperature at which additional linear shrinkage (or growth) after holding for 2 hours does not exceed 1%, according to clause 1.1a - the temperature at which additional linear shrinkage (or growth) after holding 12 hours does not exceed 2%.

(Revised edition, Rev. No. 3).

C. 8 GOST 5040-78

Table 5a

Table 56

3. ACCEPTANCE RULES

3.1. Products are accepted in batches. Each batch must consist of products of the same brand and be accompanied by one quality document containing:

trademark or the name of the manufacturer and trademark;

product brand;

the number of products in the batch by brand;

serial number of the batch;

release date;

laboratory test results;

the mass of the batch, indicated in volume units and in units of mass;

designation of this standard.

The size of a batch of lightweight products is set in volume units, for all brands no more than 80 m 3, and for products of the ShTL-0.6, ShL-0.4, ShL 1-0.4 and MKRL-0.5 brands no more than 20 m 3 .

GOST 5040-78 S. 9

The conversion of volume units to mass units and the conversion of mass units to volume units are given in the appendix.

(Changed edition, Rev. No. 1, 3).

3.2. (Deleted, Rev. No. 3).

The magnitude of the apparent density, determined with accuracy.

to 0.01, round up to 0.1. Values ​​below 0.05 are discarded, at 0.05 and above, 0.1 is added.

4.3. Additional linear shrinkage or growth upon exposure for 2 hours for products manufactured according to clause 1.1 is determined in accordance with GOST 5402-81.

The determination of additional linear shrinkage at an exposure of 12 hours for products manufactured according to clause 1.1a is carried out on samples with a length and width of 100 to 130 mm and a thickness of 60 to 70 mm cut from the product.

The tests are carried out in an electric oven. The temperature of the furnace chamber must be uniform, the deviation from the average temperature by two extreme points should not exceed ±15°С. The test sample is placed with the smaller face on a stand 60 mm thick, made of material identical to the sample.

In the first three hours, the furnace should be heated at a rate of 300°C/h, in the next three hours - at a rate of 100°C/h, then

GOST 5040-96

INTERSTATE STANDARD

refractory products
AND HIGHLY REFRACTORY
LIGHTWEIGHT
HEAT INSULATION

Specifications

INTERSTATE COUNCIL
ON 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	Armstate standard
Republic of Belarus	State Standard of Belarus
	Gruzstandard
The Republic of Kazakhstan	State Standard of the Republic of Kazakhstan
The Republic of Moldova	Moldovastandard
the Russian Federation	Gosstandart of Russia
The Republic of Tajikistan	Tajik State Standard
Turkmenistan	Main State Inspectorate of Turkmenistan
The Republic of Uzbekistan	Uzgosstandart
	State Standard of Ukraine

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

4 INSTEAD OF GOST 5040-78

5 REVISION

GOST 5040-96

INTERSTATE STANDARD

LIGHTWEIGHT REFRACTORY AND HIGHLY REFRACTORY PRODUCTS
HEAT INSULATION

Specifications

Lightweight heat insulating refractory
and high-refractory products.
Specifications

Introduction date 2000-07-01

1 area of ​​use

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

Lightweight heat-insulating products are used in the working (unprotected) lining of furnaces that are not subject to the action of melts, abrading forces and mechanical shocks, or in intermediate (protected) insulation.

2 Normative references

This standard uses references to the following standards:

table 1 - Characteristics of brands of lightweight thermal insulation products

		Characteristic	Maximum application temperature, °C
Dinas		Dinas lightweight 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 not more than 0.9 g / cm 3
		Fireclay-talc lightweight products with an apparent density of not more than 0.6 g / cm 3
		Fireclay lightweight products with an apparent density of not more than 0.4 g / cm 3
Mullite-silica		Mullite-silica lightweight products with an apparent density of not more than 0.8 g / cm 3
Mullite		Mullite lightweight products with an apparent density of not more than 1.3 g / cm 3
Corundum		Corundum lightweight products with an apparent density of not more than 1.3 g / cm 3
		Corundum lightweight 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; SL-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 SL-0.9; SL-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 product dimensions must correspond to those indicated in the table. table 3 - Limit deviations in 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 CL-1.3, CL-1.1 Normal products: Shaped products size: St. 100 to 250 incl. » 250 » 400 » 4.3 Additional shapes and sizes of products, as well as maximum deviations in size, can be set by agreement of the parties. 5 Technical requirements 5.1 In terms of physical and chemical parameters, lightweight products must comply with the requirements specified in the table, with the following additions. 5.1.1 For products of all brands, the apparent density may deviate upward by 0.1 g/cm 3 for one product out of three. 5.1.2 For products of all brands, except for ShL-0.4 and ShL1-0.4, having overall dimensions of more than 250 mm´ 124 mm´ 75 mm, a reduction in compressive strength of 0.5 N / mm 2 is allowed. table 4 - Physical and chemical parameters of lightweight products Significance for product brands dinas fireclay mullite-silica mullite corundum Mass fraction, %: Al 2 O 3 , not less than Fe 2 O 3 , no more SiO 2 , not less Apparent density, g/cm 3 , no more Additional linear shrinkage (growth) at exposure for 2 hours,%, no more, at temperature, °С Ultimate compressive strength, N/mm 2 , not less than 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 fracture surface of products are not allowed: for grades ShL-0.4 and ShL1-0.4 - cracks with a width of more than 2 mm and a length of more than 60 mm, voids and foreign inclusions larger than 20 mm, for other grades - cracks with a width of more than 2 mm and more than 30 mm long, foreign inclusions and voids larger than 10 mm. 6 Safety and security requirements environment 6.1 In the production and use of lightweight dinas products, a harmful production factor is inorganic quartzite dust containing silicon oxide, which belongs to the 3rd hazard class. The maximum permissible concentration (MAC) 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 fireclay, mullite-silica, mullite and corundum lightweight products, a harmful production factor is inorganic dust containing aluminum oxide with an admixture of free silicon dioxide and iron oxide, which belongs to the fourth hazard class. 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 - according to GOST 12.0.001 , GOST 12.0.003 , GOST 12.1.005, GOST 12.4.028, GOST 12.4.041. 6.4 In the manufacture 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 Significance for product 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, KL-1.1 ShTL-0.6, ShL1-0.4 Curvature, no more, for products of size: up to 250 incl. St. 250 to 400 incl. Depth of broken corners and ribs, no more Cracks with a width of 0.5 to 1.0 inclusive, no more than 30 Not allowed Separate smelts 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 volume 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 the acceptance of mass-produced products, control plan number one is used, for critical products - number two. 7.1.3 In terms of appearance and size in the sample, one defective sample is allowed for products with an apparent density of more than 1.0 g / cm 3, for products with an apparent density of less than 1.0 g / cm 3 - two defective samples. 7.1.4 When checking the conformity of the quality of products with the requirements of this standard, acceptance tests are carried out with the frequency of sampling and sampling to determine: appearance indicators, apparent density, compressive strength - from each lot, other indicators - from every third lot. 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 value of apparent density, determined to the nearest 0.01, shall be rounded up to 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 when holding products for 2 hours is determined by GOST 5402.1 , GOST 5402.2. 8.4 Compressive strength is determined according to GOST 4071.2. If cracks are found on the sample intended for determining the compressive strength, the sample can be replaced from the same sample no more than two times. If, after a double replacement, the sample has a crack on the cut, the structure of the batch products in the fracture is re-checked on a double number of samples., using a template probe 10 mm wide and 0.1 mm thicker than the established curvature norm. The probe must not enter the gap between the plate and the product. 8.9 Depth of broken corners and ribs is determined according to GOST 15136. 8.10 The width of the cracks is determined using a measuring magnifier according to GOST 25706 or an instrumental microscope according to 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 width of the crack is determined in the place of maximum value. The length of the crack is measured with a metal ruler with a division value of 1 mm. 8.11 The diameter of melts, voids and foreign inclusions is determined with a metal ruler with a division value of 1 mm in the place of their maximum value. The diameter of the melts is measured by the diameter of the cavity formed by the melt. 9 Marking, packaging, transport and storage 9.1 Marking, packaging, transportation and storage of products are carried out according to GOST 24717 with the following additions. 9.1.1 For products of grades 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 wrapping them in paper or loading them into boxes, containers, bags and pallets, the marking is applied not to products, but to packaging or containers. 9.1.2 Products of all brands are packed in bags according to 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 - Volume units are converted to mass units by multiplying volume units by the apparent density of the products indicated in the accompanying document.

Keywords: refractory, highly refractory, lightweight, heat-insulating products