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GOST 17622 72 technical organic glass. block plexiglass

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GLASS ORGANIC
TECHNICAL

TECHNICAL CONDITIONS

GOST 17622-72

USSR STATE COMMITTEE ON STANDARDS

STATE STANDARD OF THE UNION OF THE SSR

Valid from 07/01/73

Non-compliance with the standard is punishable by law

This standard applies to technical organic glass, which is a plasticized and unplasticized polymer of methacrylic acid methyl ester.

Technical organic glass is intended for use in various industries national economy and for export.

1. GRADES AND SIZES

1.1. Technical organic glass should be produced in the following grades:

TOSP - technical plasticized organic glass;

TOSN - non-plasticized technical organic glass.

Codes for the all-Union classifier of industrial and agricultural products, depending on the brand, grade and thickness of technical organic glass, are given in mandatory Appendix 2.

(Changed edition, Rev. No. 2, 3, 4).

1.2. Depending on the purpose, technical organic glass is produced as colorless transparent, colored transparent and colored opaque.

Glass with nominal thicknesses of 2, 3, 4, 5 and 6 mm is produced in colored glass (red, yellow, orange, green, blue and white).

By agreement with the consumer, it is allowed to produce colored organic glass of other thicknesses and colors.

Organic glass in the form of blocks, made in metal molds, has a matte surface.

1.3. Technical organic glass is produced in the form of sheets and blocks of linear dimensions indicated in Table. 1 and 1a.

Table 1


	Previous off for sheet size
up to 1250×1150	up to 1600×1400

Table 1a

Blocks are made from 400 to 600 mm long and from 300 to 500 mm wide. By agreement with the consumer, blocks of other linear dimensions are allowed. The maximum size of blocks made in silicate glass molds is 600 × 900 mm.

1.3.1. Limit deviations in the length and width of sheets and blocks should not exceed 150 mm, for a sheet measuring 100 × 100 - 50 mm.

1.3.2. Sheets and blocks are made in a rectangular shape. The curvilinearity of the sides is allowed within the tolerance for linear dimensions.

1.3.3. Plexiglas in the form of sheets must be with cut edges, blocks of 25 mm or more with uncut edges or with one or two cut sides.

By agreement with the consumer, organic glass is allowed in the form of uncut sheets with cushioning material, with one cut corner and rounded corners. The cut length must not exceed 200 mm.

1.3. (Revised edition, Rev. No. 4).

1.4, 1.5. (Deleted, Rev. No. 4).

Example symbol plasticized organic technical glass in the form of sheets 5 mm thick, red transparent:

Organic sheet glass TOSP 5 red transparent

GOST 17622-72

An example of a symbol for organic technical non-plasticized glass in the form of a block 40 mm thick, colorless:

Organic glass, blocks, TOSN 40 colorless

GOST 17622-72

(Revised edition, Rev. No. 4).

2. TECHNICAL REQUIREMENTS

2.1. In appearance, sheets and blocks of organic glass must meet the requirements specified in Table. 3.

Table 3*

Name of indicator	Meaning
per 1 m2 of sheet surface	on the surface of the block
1. Scattered foreign inclusions, pcs., no more than:

1.1 to 3.0 mm
	Not allowed
2. Scratches are rough	Not allowed	Allowed
3. Scratches are not rough in scattered form, risks	Allowed
4. Scattered villi, pcs., no longer than 3 mm

5. Internal blisters, pieces, no more than 1.0 mm in size,
Not allowed
6. Scattered transparent dots, no more than 1.5 mm in diameter	Allowed
7. Holes, wrinkle, waviness, banding, rash
8. Imprints from the leaching of silicate glass, foci, each of which must fit into a square with a side of 60 mm, no more		Allowed
9. Shaped haze	According to the control sample
10. Surface sags, imprints of cracks in silicate glass	Not allowed	Allowed
11. Tacks inside the block		Not allowed
12. Cracks, notches, chips, in the edge of the sheet at the cutting point, more than 4 mm long	Not allowed	Allowed
Notes: 1. Indicators appearance blocks with a matte surface are not standardized. 2. On the surface of the block with a thickness of more than 40 mm, visible signs of shrinkage are allowed. 3. The terms of appearance indicators and their definitions are given in reference appendix 3.

* Tab. 2 is excluded (Change No. 4).

2.2. According to physical and mechanical indicators, technical organic glass must comply with the standards specified in Table. 4. Additional indicators of technical glass quality are given in reference appendix 1.

Table 4

Name of indicator	Value for glass	Test method
colorless transparent	colored transparent TOSP

1. Softening temperature, °C, not lower for thicknesses:			According to GOST 15088-83 and clause 4.4 of this standard



2. Impact strength, kJ/m2, not less than for thicknesses:			According to GOST 4647-80 and clause 4.5 of this standard



Note. The indicator according to claim 2 for glass with a thickness of 1.0 - 2.0 mm and the physical and mechanical parameters of colored opaque glass with a thickness of 2.0 - 6.0 mm are not standardized.

(Revised edition, Rev. No. 4).

Annex 1 (informative). Table of physical and mechanical properties of technical organic glass Appendix 2 (mandatory). Codes for the all-Union classifier of industrial and agricultural products Appendix 3 (reference). Terms and definitions of indicators of appearance Appendix 4 (mandatory). The order of description, execution and approval of control samples of the appearance of sheets of technical organic glass

State standard of the USSR GOST 17622-72
"Organic technical glass. Specifications"
(approved by the resolution of the State Standard of the USSR of April 14, 1972 N 757)

Industrial organic plastic. Specifications

This standard applies to technical organic glass, which is a plasticized and unplasticized polymer of methacrylic acid methyl ester.

Technical organic glass is intended for use in various sectors of the national economy and for export.

1. Brands and sizes

1.1. Technical organic glass should be produced in the following grades:

TOSP - technical plasticized organic glass;

TOSN - non-plasticized technical organic glass.

Codes for the all-Union classifier of industrial and agricultural products, depending on the brand, grade and thickness of technical organic glass, are given in the mandatory Appendix 2.

(Changed edition, Rev. N 2, 3, 4).

1.2. Depending on the purpose, technical organic glass is produced as colorless transparent, colored transparent and colored opaque.

Glass with nominal thicknesses of 2, 3, 4, 5 and 6 mm is produced in colored glass (red, yellow, orange, green, blue and white).

By agreement with the consumer, it is allowed to produce colored organic glass of other thicknesses and colors.

Organic glass in the form of blocks, made in metal molds, has a matte surface.

1.3. Technical organic glass is produced in the form of sheets and blocks of linear dimensions indicated in Table. 1 and 1a.

Table 1


	Previous off for sheet size

Table 1a

Block thickness
	Previous off	Previous off	Previous off

1.3.1. Limit deviations in length and width of sheets and blocks should not exceed 150 mm, for a sheet measuring 100X100 - 50 mm.

1.3.2. Sheets and blocks are made in a rectangular shape. The curvilinearity of the sides is allowed within the tolerance for linear dimensions.

1.3.3. Plexiglas in the form of sheets must be with cut edges, blocks of 25 mm or more with uncut edges or with one or two cut sides.

By agreement with the consumer, organic glass is allowed in the form of uncut sheets with cushioning material, with one cut corner and rounded corners. The cut length must not exceed 200 mm.

1.3. (Changed edition, Rev. N 4).

1.4, 1.5. (Excluded, Rev. N 4).

An example of a symbol for plasticized organic technical glass in the form of sheets 5 mm thick, red transparent:

Organic sheet glass TOSP 5 red transparent

GOST 17622-72

An example of a symbol for organic technical non-plasticized glass in the form of a block 40 mm thick, colorless:

Organic glass, blocks, TOSN 40, colorless,

GOST 17622-72.

(Changed edition, Rev. N 4).

2. Technical requirements

2.1. In appearance, sheets and blocks of organic glass must meet the requirements specified in Table. 3.


Name of indicator	Meaning
Name of indicator	per 1 m2 of sheet surface	on the surface of the block
1. Scattered foreign inclusions, pcs., no more than:

1.1 to 3.0 mm
	Not allowed
2. Scratches are rough	Not allowed	Allowed
3. Scratches are not rough in scattered form, risks	Allowed
4. Scattered villi, pcs., no longer than 3 mm
5. Internal blisters, pieces, no more than 1.0 mm in size,
	Not allowed
6. Scattered transparent dots, no more than 1.5 mm in diameter	Allowed
7. Holes, wrinkle, waviness, banding, rash
8. Imprints from the leaching of silicate glass, foci, each of which must fit into a square with a side of 60 mm, no more		Allowed
9. Shaped haze	According to the control sample
10. Surface sags, imprints of cracks in silicate glass	Not allowed	Allowed
11. Tacks inside the block		Not allowed
12. Cracks, notches, chips, in the edge of the sheet at the cutting point, more than 4 mm long	Not allowed	Allowed

Notes

1. Indicators of the appearance of a block with a matte surface are not standardized.

2. On the surface of the block with a thickness of more than 40 mm, visible signs of shrinkage are allowed.

3. The terms of appearance indicators and their definitions are given in the reference appendix 3.

2.2. According to physical and mechanical indicators, technical organic glass must comply with the standards specified in Table. 4. Additional indicators of the quality of technical glass are given in the reference appendix 1.

Table 4
Name of indicator	Value for glass		Test method
	colorless transparent	colored transparent

1. Softening temperature, °C, not lower for thicknesses:			According to GOST 15088-83 and clause 4.4 of this standard




2. Impact strength, not less than for thicknesses:				According to GOST 4647-80 and clause 4.5 of this standard

Note. The indicator according to claim 2 for glass with a thickness of 1.0-2.0 mm and the physical and mechanical parameters of colored opaque glass with a thickness of 2.0-6.0 mm are not standardized.

(Changed edition, Rev. N 4).

3. Acceptance rules

3.1. Organic glass is accepted in batches. A batch of organic glass is taken as the number of sheets and blocks of the same brand, of the same nominal thickness, manufactured according to one technological polymerization mode, accompanied by one quality document.

The quality document must contain:

name and trademark manufacturer;

name of the material, brand;

batch number, nominal thickness;

net weight;

date of manufacture;

test results or confirmation of compliance of technical organic glass with the requirements of this standard.

(Changed edition, Rev. N 3, 4).

3.2. Each sheet of the batch is subjected to an appearance and size check, and 10% of the sheets of the batch are checked for thickness.

3.3. The indicators "softening point" and "impact strength" of glass of both brands are periodically checked by the manufacturer at least once a month for sheet glass and at least once every three months for blocks on one sheet or block of each nominal thickness.

3.4. If unsatisfactory test results are obtained for at least one of the indicators, repeated tests should be carried out on it on a double number of sheets taken from the same batch of glass. The retest results apply to the entire lot.

Upon receipt of unsatisfactory results of periodic tests, tests are transferred to acceptance tests until positive results are obtained on two batches in a row.

3.3, 3.4. (Changed edition, Rev. N 3, 4).

4. Test methods

4.1. The test specimens are cut from a strip cut from one side of a sheet or block. It is allowed to cut samples from the corners of the sheet or block.

Appearance, thickness and physical-mechanical quality indicators of organic glass are determined at a distance of at least 30 mm from the edge of the sheet.

4.2. Indicators of the appearance of organic glass in accordance with the table. 3 is checked by inspection with the naked eye at a distance of 250-400 mm perpendicular to the surface of the sheet in natural light or fluorescent lighting.

Foreign inclusions are measured by any measuring tool that provides measurement with an error of not more than 0.1 mm.

Leaching impressions of silicate glass are determined by applying a stencil made from a sheet of thick paper or cardboard.

4.3. The length and width of organic glass sheets are measured by any measuring instrument that provides the necessary measurement accuracy with an error of no more than 1 mm.

The thickness is measured with a micrometer according to GOST 6507-90 or a dial indicator according to GOST 577-68, along the perimeter at four points (in the middle of each side) with an error of not more than 0.05 mm.

4.4. Determination of softening point

The softening temperature is determined according to GOST 15088-83 at a test load H with a temperature rise rate of 120°C/h. It is allowed to determine the softening temperature on an installation with an indicator in accordance with paragraphs. 4.4.1-4.4.4, while the softening temperature is taken as the temperature at which a punch with a diameter of mm under the action of a constant load H is immersed to a certain depth in the sample when it is heated.

GLASS ORGANIC TECHNICAL

SPECIFICATIONS GOST 17622-72

Edition official E

USSR STATE COMMITTEE FOR PRODUCT QUALITY MANAGEMENT AND STANDARDS

STATE STANDARD OF THE UNION OF THE SSR

GLASS ORGANIC TECHNICAL Specifications

Industrial organic plastic.

Valid from 07/01/73 to 01/01/94

This standard applies to technical organic glass, which is a plasticized and unplasticized polymer of methacrylic acid methyl ester.

Technical organic glass is intended for use in various sectors of the national economy and for export.

1. GRADES AND SIZES

1.1. Technical organic glass should be produced in the following

TOSP - technical plasticized organic glass;

TOSN - non-plasticized technical organic glass.

Codes for the all-Union classifier of industrial and agricultural products, depending on the brand, grade and thickness of technical organic glass, are given in mandatory Appendix 2.

(Changed edition, Rev. No. 2, 3, 4).

1.2. Depending on the purpose, technical organic glass is produced as colorless transparent, colored transparent and colored opaque.

Glass with nominal thicknesses of 2, 3, 4, 5 and 6 mm is produced in colored glass (red, yellow, orange, green, blue and white).

By agreement with the consumer, it is allowed to produce colored organic glass of other thicknesses and colors.

Organic glass in the form of blocks, made in metal molds, has a matte surface.

1.3. Technical organic glass is produced in the form of sheets and blocks of linear dimensions indicated in Table. 1 and 1 a.

Table 1


Previous off, for sheet size












	from 500 to 1600	from 400 to 1400
	from 500 to 1600	from 400 to 1400

Table 1 a

Block thickness

Previous off	Previous off	Previous off

1.3.1. Limit deviations in length and width of sheets and blocks should not exceed 150 mm, for a sheet measuring 100X100 - 50 mm.

1.3.2. Sheets and blocks are made in a rectangular shape. The curvilinearity of the sides is allowed within the tolerance for linear dimensions.

1.3.3. Plexiglas in the form of sheets must be with cut edges, blocks of 25 mm or more with uncut edges or with one or two cut sides.

By agreement with the consumer, organic glass is allowed in the form of uncut sheets with cushioning material, with one cut corner and rounded corners. The cut length must not exceed 200 mm.

1.3. (Revised edition, Rev. No. 4).

1.4. 1.5. (Deleted, Rev. No. 4).

An example of a symbol for plasticized organic technical glass in the form of sheets 5 mm thick, red transparent:

Organic sheet glass TOSP 5 red transparent GOST 17622-72

An example of a symbol for organic technical non-plasticized glass in the form of a block 40 mm thick, colorless:

Organic glass, blocks, TOSN 40, colorless, GOST 17622-72.

(Revised edition, Rev. No. 4).

2. TECHNICAL REQUIREMENTS

2.1. In appearance, sheets and blocks of organic glass should

meet the requirements specified in table. 3. _Table 3 (Table 2 has been deleted - rev. No. 4)

	Meaning
Name of indicator	per 1 m 1 sheet surface	on the surface of the block
1. Foreign inclusions in scattered form.
pcs., no more than:

1.1 to 3.0 mm
	Not allowed
2. Scratches are rough	Not allowed	Allowed
3. Scratches are not rough in scattered form,	Allowed

4. Scattered villi, pcs., no more
up to 3 mm long
5. Internal bubbles, pcs., no more than

	Not allowed
6. Transparent\|scattered dots, pcs., not	Allowed
over 1.5 mm diameter
7. Holes, wrinkle, waviness, banding, rash
8. Imprints from silicate leaching		Allowed
glasses, hearths, each of which must
fit into a square with a side of 60 mm, no more
9. Shaped haze	According to the control sample
10. Surface sagging, crack marks	Not allowed	Allowed
silicate glass
11. Tacks inside the block		Not allowed
12. Chips, notches, chips, in the edge of the sheet	Not allowed	Allowed
at the cutting point with a length of more than 4 mm

Notes

Name of indicator	Value for glass		Test method
	colorless transparent	colored transparent

1. Softening temperature, "C,
not lower for thicknesses:			this standard



2. Impact strength, kJ / m 2, not
less for thicknesses:			this standard

Note. The indicator according to claim 2 for glass with a thickness of 1.0-2.0 mm and physical and mechanical

indicators of colored opaque glass with a thickness of 2.0-6.0 mm are not standardized. (Revised edition, Rev. No. 4).

3. ACCEPTANCE RULES

The quality document must contain:

name and trademark of the manufacturer;

name of the material, brand;

batch number, nominal thickness;

net weight;

date of manufacture;

test results or confirmation of compliance of technical organic glass with the requirements of this standard.

(Changed edition, Rev. No. 3, 4).

3.2. Each sheet of the batch is subjected to an appearance and size check, and 10% of the sheets of the batch are checked for thickness.

Upon receipt of unsatisfactory results of periodic tests, tests are transferred to acceptance tests until positive results are obtained on two batches in a row.

3.3, 3.4. (Changed edition, Rev. No. 3, 4).

4. TEST METHODS

4.1. The test specimens are cut from a strip cut from one side of a sheet or block. It is allowed to cut samples from the corners of the sheet or block.

Appearance, thickness and physical-mechanical quality indicators of organic glass are determined at a distance of at least 30 mm from the edge of the sheet.

Foreign inclusions are measured by any measuring tool that provides measurement with an error of not more than 0.1 mm.

Leaching impressions of silicate glass are determined by applying a stencil made from a sheet of thick paper or cardboard.

4.3. The length and width of organic glass sheets are measured by any measuring instrument that provides the necessary measurement accuracy with an error of no more than 1 mm.

4.4. Determination of softening point

The softening temperature is determined according to GOST 15088-83 at

test load (50±1) N with a temperature rise rate of 120°C/h. It is allowed to determine the softening temperature on an installation with an indicator in accordance with paragraphs. 4.4.1-4.4.4, while the softening temperature (Тр) is taken as the temperature at which the punch with a diameter of (1.13 ± 0.01) mm under the action of a constant load (9.81 ± 0.25) N is immersed to a certain depth into the sample when it is heated.

4.4.1. Equipment

Installation (Fig. 1).

ICH-10 type indicator with a division value of 0.01 mm in accordance with GOST 557-68.

Mercury thermometers with a division value of not more than 1 ° C according to NTD. Thermostat that maintains the temperature with an error of ± 3 ° С.

4.4.2. Sampling

For testing, samples are used in the form of disks with a diameter of (19.0 ± 0.5) mm, a thickness of 4-10 mm, equal to the thickness of the glass being tested.

If the thickness of the glass is more than 10 mm, then it is brought to a thickness of (10.0 ± 0.5) mm by machining on one side, while the test surface is not subjected to machining.

Samples with a thickness of less than 4 mm are folded into a bag with a thickness of 4-6 mm, achieving a snug fit to each other.

Tests are carried out on two samples (packages).

4.4.3. Preparing for the test

Before testing, the samples are kept on a silicate glass substrate in a thermostat for (20 ± 5) min at a temperature 15-20 ° C above the expected softening temperature. Samples are cooled in a thermostat to a temperature not exceeding 40°C.

Then the samples are placed in the nests of the installation and sealed with foil around the perimeter.

Installation for determining the softening point

4.4.4. Conducting a test

The sample is loaded. After (1.0 ± 0.1) min after the application of the load (9.81 ± 0.25) N, including the weight of the load, the rod with the platform, the punch and the indicator force, the deformation of the sample is measured by the indicator at a temperature of (23 ± 5) °C. Then the load is removed, heating is turned on and the temperature is raised at a rate of 2.0 °C/min to a temperature 10-20 °C below the expected softening temperature. The sample is kept at this temperature for (10.0 ± 0.2) min and the deformation of the sample is measured after (1.0 ± 0.1) min after the application of the load; then the load is removed.

Subsequent strain measurements are made every (5±1)°C at an average temperature rise rate of 1°C/min (60±5)°C/h [(60±5) deg/h] The test is terminated when the difference in strain at temperature environment and test temperature is not less than 1.2 mm.

Based on the test results, a graph of the dependence of the strain difference at ambient temperature and test temperature on these temperatures is plotted (Fig. 2).

On the site of a sharp rise in the curve, a tangent is drawn until it intersects with the x-axis. The point of intersection indicates the softening point. Curves for two samples of the same determination are plotted on the same graph.

The test result is taken as the arithmetic mean of the softening temperature of two samples, rounded to the nearest whole number, the allowable discrepancy between which, with a confidence level of 0.95, should not exceed 2 °C.

4.4.5. In case of disagreement in assessing the softening point, the determination is carried out according to GOST 15088-83.

4.5. Impact strength is determined according to GOST 4647-80 on five samples of type 1 or 3 without notch, depending on the nominal glass thickness.

Tests are carried out at a temperature of (23±2)°C. Test specimens are kept at a temperature of (23±2)°C for at least 3 hours.

4.1-4.5. (Revised edition, Rev. No. 4).

Diagram of deformation versus temperature

5. PACKAGING; MARKING, TRANSPORT AND STORAGE

5.1. Sheets of organic glass are wrapped or glued on both sides with wrapping paper in accordance with GOST 8273-75 or paper for pasting organic glass according to normative and technical documentation. By agreement with the consumer, it is allowed to lay sheets with paper. Glass in the form of blocks with a thickness of 25 mm or more may not be packed in wrapping paper, in which case the marking is applied directly to the glass.

5.2. Sheets packed according to clause 5.1 are placed in wooden boxes of type II-

Sheets of wrapping paper are placed at the bottom and under the lid of the boxes according to GOST 8273-75. The boxes are edged with steel packing tape with a thickness of at least 0.3 mm in accordance with GOST 3560-73 or GOST 503-81. The ends of the tape are fastened with a lock or a notch.

5.3. Packed according to paragraphs. 5.1 and 5.2 sheets are placed in universal containers according to GOST 15102-75, GOST 20435-75, GOST 18477-79 with sheets fixed with spacers or formed into transport packages.

Transport packages are formed on wooden flat pallets according to GOST 9078-84, GOST 9557-87, GOST 26381-84, GOST 22831-77. It is allowed to form transport packages according to normative and technical documentation on wooden bars or bars from organic glass production waste. In this case, the glass is laid on bars using cardboard spacers on top and bottom of the package.

The dimensions of the package in the plan must correspond to the dimensions of the glass indicated in Table. 1, other parameters - according to GOST 24597-81. The packages are fastened in accordance with GOST 21650-76 with a metal tape in accordance with GOST 3560-73 or GOST 503-81.

5.4. Organic glass intended for export is packed in accordance with the requirements of the work order of the foreign trade association.

5.5. Organic glass intended for the regions of the Far North and equated to them is packed in accordance with clause 5.3. At the same time, transport packages are formed from organic glass packed in boxes.

5.6. Each packaged sheet of organic glass is labeled with:

trademark and (or) name of the manufacturer or its symbol;

symbol of the product;

batch and sheet numbers;

nominal thickness;

sheet weight;

manufacturing dates;

surname or stamp of the packer or stamp of the Quality Control Department.

5.7. Transport marking - in accordance with GOST 14192-77 with the application of the handling sign "Caution, fragile!".

Transport marking of organic glass intended for export is in accordance with GOST 14192-77 and the order of the foreign trade association.

5.8. Organic glass is transported by rail or by car indoor vehicles in accordance with the rules of transportation in force for this type of transport.

By agreement with the consumer, it is allowed to transport glass packed according to clause 5.1 by road without packing in boxes or containers, while the glass must be covered with a waterproof material.

Transportation of organic glass in packages - according to NTD.

5.9. Transportation of organic glass to the regions of the Far North and equated to them - according to GOST 15846-79.

5.10. Technical organic glass should be stored in the manufacturer's packaging in closed warehouses at a temperature of 5 to 35°C and a relative humidity of not more than 65%. It is not allowed to store organic glass together with chemical products.

Sec. 5. (Changed edition, Rev. No. 4).

6. MANUFACTURER WARRANTY

6.1. The manufacturer guarantees the compliance of organic glass with the requirements of this standard, provided that the consumer observes the conditions of storage and transportation.

(Revised edition, Rev. No. 4).

6.2. Warranty period of storage of technical organic glass - 2 years from the date of production.

(Revised edition, Rev. No. 3).

7. SAFETY

7.1. When processing organic glass at temperatures above the softening point, methyl methacrylate may be released.

The maximum permissible concentration of methyl methacrylate vapors in the air of the working area is 10 mg/m.

7.2. Plexiglas must be processed in rooms equipped with supply and exhaust ventilation and devices with suction ventilation from places of gas release.

Sec. 7. (Changed edition, Rev. No. 4).

TABLE of physical and mechanical properties of technical organic glass

Name of indicator	Norm for the brand	Test method
Name of indicator		Test method
1. Density at (23 ± 2) ° С, kg / m 3
		(Hydrostatic weighing)
2. Tensile strength, MPa,		On the surface of a block with a thickness of more than 40 mm, visible signs of shrinkage are allowed.

STATE STANDARD

UNION SSR

GLASS ORGANIC TECHNICAL

TECHNICAL CONDITIONS

GOST 17622-72

Official edition

E

USSR STATE COMMITTEE ON STANDARDS

Editor R. S. Fedorova Technical editor E V, Mityai Proofreader M. M Gerasimenko

Rented in set 22 02 89 Signed in print 25 04 89

Tier 10 000 Price 5 k

Order "Badge of Honor" Standards Publishing House, 123557, Moscow, GSP,

Novopresnensky lane, 3

Vilnius Printing House of the Standards Publishing House, 39 Daryaus and Gireno St. Zach 711.

UDC 67V.744.32: 006.354 Group L27

STATE STANDARD OF THE UNION OF THE SSR

GLASS ORGANIC TECHNICAL Specifications

Industrial organic plastic. Specifications

Valid from 07/01/73

Non-compliance with the standard is punishable by law

This International Standard applies to technical organic glass, which is a plasticized and non-plasticized polymer of methacrylic acid methyl ester.

Technical organic glass is intended for use in various sectors of the national economy and for export.

1. GRADES AND SIZES

1.1. Technical organic glass should be produced in the following grades:

TOSP - technical plasticized organic glass;

TOSN - technical organic glass unplasticized-tyue.

Official edition

Reprint prohibited

Standards Publishing, 1989

Codes for the all-Union classifier of industrial and agricultural products, depending on the brand, grade and thickness of technical organic glass, are given in mandatory Appendix 2.

(Changed edition, Rev. No. 2, 3, 4).

1.2. Depending on the purpose, technical organic glass is produced in colorless transparent, colored transparent and colorless opaque.

Glass with nominal thicknesses of 2, 3, 4, 5 and 6 mm is produced in colored glass (red, yellow, orange, green, blue and white).

By agreement with the consumer, it is allowed to produce colored organic glass of other thicknesses and colors.

Organic glass in the form of blocks, made in metal molds, has a matte surface.

1.3. Technical organic glass is produced in the form of sheets and blocks of linear dimensions indicated in Table. 1 and 1a.


	Prev, off for up to 1250X1150	sheets size \| up to 1600X1400

Table 1a

Block thickness

1.3.1. Maximum deviations in the length and width of sheets and blocks should not exceed 150 mm, for a sheet measuring 100x 100-50 mm.

1.3.2. Sheets and blocks are made in a rectangular shape. The curvilinearity of the sides is allowed within the tolerance for linear dimensions.

1.3.3. Plexiglas in the form of sheets must have cut edges, blocks of 25 mm thick or more with uncut edges or one or two cut sides.

By agreement with the consumer, organic glass is allowed in the form of uncut sheets with cushioning material, with one cut corner and rounded corners. The cut length must not exceed 200 mm.

1.3. (Revised edition, Rev. No. 4).

1.4. 1.5. (Deleted, Rev. No. 4).

An example of a symbol for organic technical plasticized glass in the form of foxes 5 mm thick, red transparent:

Organic sheet glass TOSP 5 red transparent

GOST 17622-72

An example of a symbol for organic technical non-plasticized glass in the form of a block 40 mm thick, colorless:

Organic glass, blocks, TOSN 40, colorless,

GOST 17622-72.

(Revised edition, Rev. No. 4).

2. TECHNICAL REQUIREMENTS

2.1. In appearance, sheets and blocks of organic glass must meet the requirements specified in Table 3.

Table 3*

Name of indicator	per 1 m 2 of the sheet surface	on the surface of the block
1. Scattered foreign inclusions, pcs, no larger.

1.1 to 3.0 mm
	Not allowed
2 scratches are rough

3 Scattered coarse scratches, risks	Allowed
4 Scattered villi, pcs, no more
up to 3 mm long
5 Internal bubbles, pcs, no more than up to

	Not allowed
6 Scattered transparent dots, pcs, not
over 1.5 mm diameter	Allowed
7 Holes, wrinkle, waviness, banding, rash
8 Imprints from the leaching of the silicate stack
la, hearths, each of which must fit
in a square with a side of 50 mm, no more
9 Shaped haze
10 Surface sagging, crack marks	roll sample Not allowed
silicate glass
11 Tacks inside the block
12 Chips, notches, chips, in the edge of the sheet
at the cutting point with a length of more than 4 mm

Notes

1 Indicators of the appearance of a block with a matte surface are not standardized

2. On the surface of the block with a thickness of more than 40 mm, visible signs of shrinkage are allowed.

3 Appearance terms and their definitions are given in reference appendix 3

2.2. According to physical and mechanical indicators, technical organic glass must comply with the standards specified in Chabl. 4. Additional indicators of technical glass quality are given in reference appendix 1.

* Table 2 is excluded (Change No. 4)

Table 4

	Value for glass
Name of indicator	colorless transparent	colored	tests

1 Softening temperature,
®C, not lower for thicknesses			15088-83 and p 44 real camp



2 Impact strength, kJ / m 2,
at least for thicknesses			4647-80 and p 4 5 of this stan

Note The indicator according to claim 2 for glass with a thickness of 10-20 mm and the physical and mechanical properties of colored opaque glass with a thickness of 2.0-6.0 mm are not standardized

(Revised edition, Rev. No. 4).

3. ACCEPTANCE RULES

3 1 Organic glass is accepted in batches A batch of organic glass is taken as the number of sheets and blocks of the same brand, of the same nominal thickness, manufactured according to one technological polymerization mode, accompanied by one quality document

The quality document must contain

name and trademark of the manufacturer,

material name, brand,

batch number, nominal thickness,

net weight,

date of manufacture,

test results or confirmation of compliance of technical organic glass with the requirements of this standard

3 2 Check the appearance and dimensions of each sheet of the lot, check the thickness - 10% of the sheets of the lot

3 3 Indicators "softening point" and "impact strength" of glass of both brands are periodically checked by the manufacturer at least once a month for flat glass and at least once

many times every three months for blocks on the same sheet or block of each nominal thickness.

Upon receipt of unsatisfactory results of periodic tests, tests are transferred to acceptance tests until positive results are obtained on two batches in a row.

3.3, 3.4. (Changed edition, Rev. No. 3, 4),

4. TEST METHODS

4.1. The test specimens are cut from a strip cut from one side of a sheet or block. It is allowed to cut samples from the corners of the sheet or block.

Appearance, thickness and physical-mechanical quality indicators of organic glass are determined at a distance of at least 30 mm from the edge of the sheet.

Foreign inclusions are measured by any measuring tool that provides measurement with an error of not more than 0.1 mm.

Leaching impressions of silicate glass are determined by applying a stencil made from a sheet of thick paper or cardboard.

4.3. The length and width of organic glass sheets are measured by any measuring instrument that provides the necessary measurement accuracy with an error of no more than 1 mm.

The thickness is measured with a micrometer according to GOST 6507-78 or a dial indicator according to GOST 577-68, along the perimeter at four points (in the middle of each side) with an error of not more than 0.05 mm.

4.4. Determination of softening point

The softening temperature is determined according to GOST 15088-83 at

test load (50±1) N with a temperature rise rate of 120°C/h. It is allowed to determine the softening temperature on an installation with an indicator in accordance with paragraphs. 4.4.1-4.4.4, while the softening temperature (T p) is taken as the temperature at which the punch with a diameter of (1.13 ± 0.01) mm under the action of a constant load (9.81 ± 0.25) N is immersed in a certain depth into the sample when it is heated.

4.4.1. Equipment

Installation (Fig. 1).

ICH-10 type indicator with a division value of 0.01 mm in accordance with GOST 577-68.

Mercury thermometers with a division value of not more than 1 ° C according to NTD.

Thermostat that maintains the temperature with an error of ± 3 ° С.

4.4.2. Sampling

For testing, samples are used in the form of disks with a diameter of (19.0 ± 0.5) mm, a thickness of 4-10 mm, equal to the thickness of the glass being tested.

If the glass thickness is more than 10 mm, then it is brought to a thickness of (10.04 = 0.5) mm by machining on one side, while the test surface is not subjected to machining.

Samples with a thickness of less than 4 mm are folded into a bag with a thickness of 4-6 mm, achieving a snug fit to each other.

Tests are carried out on two samples (packages).

4.4.3. Preparing for the test

Before testing, the samples are kept on a silicate glass substrate in a thermostat for (20=1=5) min at a temperature of 15-20°C above the expected softening temperature. Samples are cooled in a thermostat to a temperature not exceeding 40°C.

Then the samples are placed in the nests of the installation and sealed with foil around the perimeter.

Installation for determining the softening point

I- thermometer, 2-bottom plate, 3-top plate, 4-hull, 5-stand, 6-indicator holder, 7-indicator, 8-indicator stop, 9-1ruz, 10-load platform,

II- guide sleeve, 12-rod, 13-punch, 14-

sample, 15-heater

4 4.4. Conducting a test

Subsequent strain measurements are made every (5±: 1)°C at an average temperature rise rate of 1°C/min (60±5)°C/h [(60=b5) deg/h] The test is terminated when the strain difference at ambient and test temperatures is at least 1.2 mm.

Based on the test results, a graph of the dependence of the strain difference at ambient temperature and test temperature on these temperatures is plotted (Fig. 2).

4.4.5. In case of disagreement in the assessment of the softening point, the determination is carried out according to GOST 15088-83.

Diagram of deformation versus temperature

4.5. Impact strength is determined according to GOST 4647-80 on five samples of type 1 or 3 without notch, depending on the nominal glass thickness.

Tests are carried out at a temperature of (23±2)°C. Test specimens are kept at a temperature of (23±2)°C for at least 3 hours.

4.1-4.5. (Revised edition, Rev. No. 4).

5. PACKAGING, LABELING, TRANSPORT AND STORAGE

5. 1. Sheets of organic glass are wrapped or glued on both sides with wrapping paper according to GOST 8273-75 or paper for pasting organic glass according to normative and technical documentation. By agreement with the consumer, it is allowed to lay sheets with paper. Glass in the form of blocks with a thickness of 25 mm or more may not be packed in wrapping paper, in which case the marking is applied directly to the glass.

5.2. Sheets packed according to clause 5.1 are placed in wooden boxes of type II-1, III-1 in accordance with GOST 2991-85 or plywood boxes of type VI in accordance with GOST 5959-80.

Sheets of wrapping paper are placed at the bottom and under the lid of the boxes according to GOST 8273-75. The boxes are edged with steel packaging tape with a thickness of at least 0.3 mm in accordance with GOST 3560-73 or GOST 503-81. The ends of the tape are fastened with a lock or a notch.

5.3. Packed according to paragraphs. 5.1 and 5.2, sheets are placed in universal containers according to GOST 15102-75, GOST 20435-75, GOST 18477-79 with sheets fixed with spacers or formed into transport packages.

5.4. Organic glass intended for export is packed in accordance with the requirements of the work order of the foreign trade association.

5.6. Each packaged sheet of organic glass is labeled with:

trademark and (or) name of the manufacturer or its symbol;

symbol of the product;

batch and sheet numbers;

nominal thickness;

sheet weight;

manufacturing dates;

surname or stamp of the packer or stamp of the Quality Control Department.

5.7. Transport marking - in accordance with GOST 14192-77 with the application of the handling sign "Caution, fragile!".

Transport marking of organic glass intended for export - in accordance with GOST 14192-77 and an order-order of a foreign trade association.

5.8. Organic glass is transported by rail or road in covered vehicles in accordance with the transportation rules applicable to this type of transport.

Transportation of organic glass in packages - according to GOST 21929-76.

5.9. Transportation of organic glass to the regions of the Far North and equated to them - according to GOST 15846-79.

Section 5. (Revised edition, Rev. No. 4).

6. MANUFACTURER WARRANTY

6.1. The manufacturer guarantees the compliance of organic glass with the requirements of this standard, provided that the consumer observes the conditions of storage and transportation.

(Revised edition, Rev. No. 4).

6.2. Warranty period of storage of technical organic glass - 2 years from the date of production.

(Revised edition, Rev. No. 3).

7. SAFETY

7.1. When processing organic glass at a temperature

above the softening point, methyl methacrylate may be released.

The maximum permissible concentration of methyl methacrylate vapors in the air of the working area is 10 mg/m 3 .

7.2. Plexiglas must be processed in rooms equipped with supply and exhaust ventilation and devices with suction ventilation from places of gas release.

Sec. 7. (Changed edition, Rev. No. 4).

APPENDIX 1 Reference

physical and mechanical properties of technical organic glass

Name of indicator	Norm for the brand	Test method
Name of indicator		Test method
I. Density at (23 ± 2) ° С, kg / m 3		According to GOST 15139-69 (Hydrostatic weighing)
2. Tensile strength, MPa, not less than		According to GOST 11262-80 (Samples of type 2, speed
3. Elongation at break, %, not less than		According to GOST 11262-8 0 (Samples of type 2, speed
4. Linear shrinkage, %		Heating at temperature
5. Transmittance, %, not less (For colorless glass with nominal thickness up to 30 mm)		Tr + 20°C for 2 h According to GOST 15875-80 (Source A)

(Changed edition, Rev. No. 3, 4).

APPENDIX 2

Mandatory

Codes for the All-Union Classifier of Industrial and Agricultural Products

	Length and width, mm	Nominal thickness mm
TOSP (colorless
transparent, sheets)




















TOSP (color
transparent, sheets)




TOSP (color not
transparent, sheets)




TOSP (colorless	Up to 1600 X 1400
transparent, sheets)

Continuation

	Length and width, mm	Nominal thickness, mm
TOSP (colorless
transparent, sheets)









TOSN (colorless
transparent, sheets)










			22 1622 8412 FROM









TOSN (colorless
transparent, sheets)




			22 1622 8706 0G

Continuation*

	Length n width, mm	Nominal thickness, mm
TOSN (colorless
transparent, sheets)
TOSP (colorless
transparent, blocks)


			22 1622 96 03 09


















TOSN (colorless
transparent, blocks)











			22 16S 2 9712 05

(Revised edition, Rev. No. 4).

APPENDIX 3 Reference

Terms and definitions of indicators of appearance

Name of indicator

Definition

1. Foreign inclusions

2. Scratches are rough

3. Scratches are not rough

4. Villi

5. Internal bubbles

6. Transparent dots

8. Rash, holes

9. Banding, waviness

10. Imprints from the leaching of silicate glass

11. Surface sags, imprints of cracks in silicate glass

12. Tacks inside the block

13. Chips, notches, chips

14. Shaped haze

Foreign or polymeric inclusions and formations various shapes in the thickness or on the surface of organic glass

Sharply pronounced mechanical damage to the glass surface, which is a straight line or another line that cannot be removed by polishing Not pronounced mechanical damage to the glass surface, which is a straight line or another line that can be removed by polishing Thread-like inclusions in the thickness or on the surface of the plexiglass

Gaseous inclusions in the thickness of glass of spherical or other shape

Inclusions of a polymeric or other nature in the form of shiny transparent dots

Filiform or nodular manifestations of optical inhomogeneity of the glass surface Formations in the form of crater-like depressions or bulges on the glass surface Optical distortions of the glass surface in the form of parallel or concentric bands as a result of silicate glass imprints, visible at an angle to the surface

Formations on the surface of the sheet in the form of contours of an indefinite shape, differing in transparency from the main material of the sheet Formations of a convex or concave shape on the surface of the sheet in the form of lines or sections of various configurations

Violation of the homogeneity of the block in the polymerized layer

Cut surface irregularity

Imprints from the surface of silicate glass in the form of spots, smears, stripes, drops, paths, visible at right angles to the sheet surface

Filiform depressions in the form of short scratches, removed by polishing

(Introduced additionally, Amendment No. 4).

APPENDIX 4 Mandatory

descriptions, design and approval of control samples of the appearance of sheets of technical organic glass

1. Control samples are produced by each manufacturer.

2. Control samples are installed on the appearance of sheet technical organic glass with the presence of an acceptable shaped haze.

3. Control samples of technical organic glass with the presence of an acceptable shaped haze are sheets of 1 mA in size.

4. Control samples are taken from batches of technical organic glass produced according to the approved technological regulations and corresponding to the requirements of GOST 17622-72.

5. Control samples in the amount of at least three copies, selected by the manufacturing workshop, are submitted for joint consideration by representatives of the Quality Control Department, Gospriemka and coordinated with the main consumer enterprise.

6. Appropriate tags sealed by the quality control department of the manufacturer and certified by the seals of the manufacturers, the consumer and the State Acceptance Committee must be attached to the control samples.

The tag for the control sample must contain the entry "Control sample of the appearance of technical organic glass for acceptable shaped haze."

7. Control samples are stored in QCD of enterprises manufacturer and consumer.

8. The period of validity of control samples is negotiated upon agreement, but should not exceed the period of validity of GOST 17622-72. When making changes to GOST 17622-72, control samples are subject to revision.

9. Control samples are stored packed in polyethylene film in a heated room away from heating devices.

10. At the request of the consumer enterprise head of OTK the manufacturer issues copies of approved control samples, certified by its signature and seal of the QCD*

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry chemical industry the USSR

PERFORMERS

A. P. Sineokoe, E. M. Samarina, I. V. Puzanova, V. I. Afanaseva, A. N. Kospochenko

2. APPROVED AND INTRODUCED BY Decree State Committee USSR according to the standards of 14.04.72 No. 757

3. Periodicity of inspection 5 years

4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

	Paragraph number* subparagraph


GOST 2991-85
GOST 3560-73
GOST 4647-80
GOST 5959-80
GOST 6507-78
GOST 8273-75
GOST 9078-84
GOST 9557-87
GOST 14192-77
GOST 15088-83
GOST 15102-75
GOST 15846-79
GOST 18477-79
GOST 20435-75
GOST 21650-76
GOST 21929-76
GOST 22831-77
GOST 24597-81
GOST 26381-84

5. The validity period was extended until 01.01.94 by Decree of the State Standard of the USSR dated 01.11.88 No. 3625

6. REPUBLICATION (March 1989) with Amendments No. 2, 3, 4, approved in September 1976, August 1983, November 1988 (IUS 9-76, 12-83, 2-89).

This standard applies to technical organic glass, which is a plasticized and unplasticized polymer of methacrylic acid methyl ester.

Technical organic glass is intended for use in various sectors of the national economy and for export.

1. Brands and sizes

1.1. Technical organic glass should be produced in the following grades:

TOSP - technical plasticized organic glass;

TOSN - non-plasticized technical organic glass.

Codes for the all-Union classifier of industrial and agricultural products, depending on the brand, grade and thickness of technical organic glass, are given in mandatory Appendix 2.

(Changed edition, Rev. N 2, 3, 4).

1.2. Depending on the purpose, technical organic glass is produced as colorless transparent, colored transparent and colored opaque.

Glass with nominal thicknesses of 2, 3, 4, 5 and 6 mm is produced in colored glass (red, yellow, orange, green, blue and white).

By agreement with the consumer, it is allowed to produce colored organic glass of other thicknesses and colors.

Organic glass in the form of blocks, made in metal molds, has a matte surface.

1.3. Technical organic glass is produced in the form of sheets and blocks of linear dimensions indicated in Table. 1 and 1a.

Table 1


	Previous off for sheet size
	up to 1250X1150	up to 1600X1400
1,00	+-0,40	-
1,50	+-0,40	-
2,00
2,50
3,00	+-0,50	+-0,70
4,00	+-0,60	+-0,80
5,00	+-0,70	+-0,90
6,00	+-0,70	+-1,00
7,00	+-0,80	+-1,00
8,00	+-0,90	+-1,00
10,00	+-0,90	+-1,00
12,00	+-1,00	+-1,20
14,00	+-1,20	+-1,50
16,00	+-1,40
18,00	+-1,60
20,00	+-2,00
22,00	+-2,20
24,00	+-2,20
25,00	+-2,30
26,00	+-2,40
28,00	+-2,50

Table 1a

Block thickness
Rated	Previous off	Rated	Previous off	Rated	Previous off
25,00	+-2,30	80,00	+-10,00	150,00	+-10,00
30,00	+-3,00	90,00	+-10,00	160,00	+-15,00
35,00	+-3,50	100,00	+-10,00	170,00	+-15,00
40,00	+-3,50	110,00	+-10,00	180,00	+-15,00
50,00	+-5,00	120,00	+-10,00	190,00	+-15,00
60,00	+-5,00	130,00	+-10,00	200,00	+-15,00
70,00	+-10,00	140,00	+-10,00

1.3.1. Limit deviations in length and width of sheets and blocks should not exceed 150 mm, for a sheet measuring 100X100 - 50 mm.

1.3.2. Sheets and blocks are made in a rectangular shape. The curvilinearity of the sides is allowed within the tolerance for linear dimensions.

1.3.3. Plexiglas in the form of sheets must be with cut edges, blocks of 25 mm or more with uncut edges or with one or two cut sides.

By agreement with the consumer, organic glass is allowed in the form of uncut sheets with cushioning material, with one cut corner and rounded corners. The cut length must not exceed 200 mm.

1.3. (Changed edition, Rev. N 4).

1.4, 1.5. (Excluded, Rev. N 4).

An example of a symbol for plasticized organic technical glass in the form of sheets 5 mm thick, red transparent:

Organic sheet glass TOSP 5 red transparent

GOST 17622-72

An example of a symbol for organic technical non-plasticized glass in the form of a block 40 mm thick, colorless:

Organic glass, blocks, TOSN 40, colorless, GOST 17622-72.

(Changed edition, Rev. N 4).

2. Technical requirements

2.1. In appearance, sheets and blocks of organic glass must meet the requirements specified in Table. 3.

Table 3*
Name of indicator	Meaning
Name of indicator	per 1 m2 of sheet surface	on the surface of the block
1. Scattered foreign inclusions, pcs., no more than:
up to 1.0 mm	8	8
1.1 to 3.0 mm	3	3
St. 3.0mm	Not allowed
2. Scratches are rough	Not allowed	Allowed
3. Scratches are not rough in scattered form, risks	Allowed
4. Scattered villi, pcs., no longer than 3 mm	10	10
5. Internal blisters, pieces, no more than 1.0 mm in size,	3	3
St. 1.0mm	Not allowed
6. Scattered transparent dots, no more than 1.5 mm in diameter	Allowed
7. Holes, wrinkle, waviness, banding, rash
8. Imprints from the leaching of silicate glass, foci, each of which must fit into a square with a side of 60 mm, no more	3	Allowed
9. Shaped haze	According to the control sample	"
10. Surface sags, imprints of cracks in silicate glass	Not allowed	Allowed
11. Tacks inside the block	-	Not allowed
12. Cracks, notches, chips, in the edge of the sheet at the cutting point, more than 4 mm long	Not allowed	Allowed

Notes

1. Indicators of the appearance of a block with a matte surface are not standardized.

2. On the surface of the block with a thickness of more than 40 mm, visible signs of shrinkage are allowed.

3. The terms of appearance indicators and their definitions are given in reference appendix 3.

Table 4
Name of indicator	Value for glass		Test method
	colorless transparent	colored transparent

1. Softening temperature, °C, not lower for thicknesses:			According to GOST 15088-83 and clause 4.4 of this standard

GOST 17622 72 technical organic glass. block plexiglass

1. GRADES AND SIZES

2. TECHNICAL REQUIREMENTS

GLASS ORGANIC TECHNICAL

GOST 17622-72

E

1.3. (Revised edition, Rev. No. 4).

1.4. 1.5. (Deleted, Rev. No. 4).

3.3, 3.4. (Changed edition, Rev. No. 3, 4),

4.1-4.5. (Revised edition, Rev. No. 4).

1. Brands and sizes

GOST 17622-72

Organic glass, blocks, TOSN 40, colorless, GOST 17622-72.

2. Technical requirements

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