Sandpaper GOST 6456 82. "Paper sandpaper. Specifications"

State standard USSR GOST 10054-82

"WATER-RESISTANT PAPER SANDING SKIN. SPECIFICATIONS"

waterproof paper. Specifications

Instead of GOST 10054-75

This International Standard applies to water-resistant paper abrasive papers intended for abrasive processing of various materials with and without the use of a cutting fluid.

1. Dimensions

1.1. Grinding skin should be produced in rolls and sanding sheets, the dimensions of which are indicated in Table. one.

Table 1

Note. At the request of the consumer, it is allowed to manufacture rolls and sheets of other sizes.

An example of a waterproof designation sandpaper on a roll, 750 mm wide, 50 m long, on wet-strength paper, made of green silicon carbide, grade 64C, grit 16-P:

750x50 M 64S 16-P GOST 10054-82

The same, sanding sheet, 230 mm wide, 280 mm long, on wet-strength paper with a polymer latex coating, made of black silicon carbide, grade 53C, grit 16-P:

L 230x280 L1 53S 16-P GOST 10054-82

2. Technical requirements

2.1. Sandpaper shall be manufactured in accordance with the requirements of this standard.

2.2. Grinding skin should be made of grain sizes 16-M14 from the grinding materials indicated in table. 2.

table 2

Note. At the request of the consumer, it is allowed to manufacture sanding paper from other grades and grain sizes of abrasive materials.

2.3. For the manufacture of abrasive skins, wet-strength paper according to GOST 10127 and industry-specific regulatory and technical documentation on paper should be used as a basis in accordance with Table. 3.

2.4. The abrasive material must be firmly bonded to the base with varnishes of the YAN-153 and PF-587 brands or other waterproof bonds according to the industry normative and technical documentation.

2.5. Grain composition of grinding materials - in accordance with GOST 3647 (grinding grain and grinding powders with indices P and N) and according to industry normative and technical documentation.

Table 3

Note. If the paper does not have an established symbol, it is allowed to indicate its brand in the symbol of the sandpaper.

2.6. (Deleted, Rev. N 3).

2.6.1. On the working surface of the abrasive paper in rolls, the total area of ​​wrinkles, folds, areas without abrasive grains, filled with a bundle, should not exceed 0.5% of the roll area.

Note. By agreement with the consumer, the total area of ​​these defects is allowed no more than 1.5% of the roll area.

(Changed edition, Rev. N 3).

2.6.2. (Deleted, Rev. N 3).

2.6.3. On the working surface of sheets, the total area of ​​wrinkles, folds, areas without abrasive grains, filled with a bundle, and with damage to the edges should not exceed 0.5% of the sheet area.

Note. By agreement with the consumer, the total area of ​​these defects is allowed no more than 1% of the sheet area.

(Changed edition, Rev. N 3).

2.6.4. (Deleted, Rev. N 3).

2.7. The uneven thickness of the sandpaper should not exceed the values ​​specified in Table. 4.

Table 4

2.8. The tensile strength of the sanding skin must correspond to the values ​​\u200b\u200bspecified in table. five.

Table 5

______________________________

* As agreed with the consumer.

2.9. The cutting ability of the abrasive skin should correspond to the values ​​​​given in table. 6.

Table 6

(Introduced additionally, Rev. N 1).

3. Acceptance rules

3.1. Acceptance inspection and periodic testing should be carried out to verify that the abrasive paper meets the requirements of this International Standard.

(Changed edition, Rev. N 1).

3.2. Acceptance control for compliance with the requirements of paragraphs. 1.1, 2.6.1 and 2.6.3 must be subjected to at least 1% of rolls of sanding paper or packs of sheets from the batch, but not less than 3 pcs., Clause 2.9 - 0.1%, but not less than three rolls or packs.

3.2.1. The batch must consist of sandpaper of the same specification, made in one shift and simultaneously presented for acceptance according to one document.

3.3. If, during the acceptance control, non-compliance with the requirements of the standard for more than one controlled indicator is established, then the lot is not accepted.

(Changed edition, Rev. N 2).

3.3.1. If a non-compliance with the requirements of the standard is established for one of the controlled indicators, then a second control is carried out on a double number of rolls of skins, packs of sheets.

If there are defects in the resampling, the lot is not accepted.

(Introduced additionally, Rev. N 2).

3.4. Periodic tests should be carried out on products (one of the sizes of rolls, sheets), which have passed the acceptance control according to clause 3.2, for compliance with the requirements of clauses. 2.7 and 2.8 0.5% sandpaper rolls or sheet packs, 16 grit; 8; 5 and M40, but not less than 3 pieces, item 2.8 on all types of bases.

(Changed edition, Rev. N 2).

3.5. Periodic tests should be carried out at least once a year.

(Changed edition, Rev. N 3).

4. Test methods

4.1. Determination of the tensile strength of sandpaper in a dry state according to GOST 6456.

4.1.1. The wet tensile strength of the sandpaper is determined as follows: the prepared sandpaper samples are soaked in water at a temperature of (20±2)°C for two hours before testing. Excess water is removed with filter paper and immediately tested in accordance with GOST 6456.

4.2. The method for determining the cutting ability of the abrasive skin - in accordance with GOST 6456 with the additions specified in paragraphs. 4.2.1, 4.2.2.

4.2.1. Before testing, the sandpaper samples are dried for one hour at a temperature of (100±5)°C.

4.2.2. The cutting ability of the sandpaper is determined by:

clamping force - 25.5 N;

grinding time - 5 min.

The test of the sanding paper with grain sizes 16-M40 is carried out with air blowing.

The limit of permissible error in weighing samples of organic glass plates when testing sanding paper with grain sizes M63-M14 is ± 0.001 g.

4.3. Dimensional control, thickness unevenness, appearance the working surface of the sanding skin - according to GOST 6456.

5. Marking, packaging, transportation and storage

5.1. On the non-working surface of the sanding paper roll, every (150 ± 15) mm in the longitudinal and transverse directions should be applied:

trademark of the manufacturer;

symbol;

batch number.

Note. By agreement with the consumer, the dimensions of the roll, sheet may not be applied.

(Changed edition, Rev. N 1, 3).

5.2. The winding of the sanding paper into rolls must be tight and even, preventing the formation of wrinkles, folds and wrinkled areas.

The end surface must be even, the protrusions of the edges must not exceed 10 mm.

5.3. Each roll of sandpaper must be wrapped in paper in accordance with GOST 8273, GOST 18277, GOST 10127 or GOST 2228 and sealed at the junction. The layers of wrapping paper should securely close the ends of the roll and ensure its safety during transportation.

5.4. Sanding sheets should be packed in packs of (50±1) pcs. or (100±2) pcs. The packs are sealed with paper or paper sanding tape with a grain size of 10 and finer, with a width of at least 35 mm along the width of the sheets.

(Changed edition, Rev. N 1).

5.5. Packs of 5-10 pcs. are placed in bags and sealed with paper or paper sanding tape with a grain size of 10 and finer, at least 35 mm wide or grade B adhesive tape according to GOST 18251. The sealed package must be wrapped with paper according to GOST 8273-75, GOST 18277, GOST 10127 or GOST 2228 so so that its end falls on the front side of the package. The package is tied with twine.

(Changed edition, Rev. N 1, 2).

5.6. (Deleted, Rev. N 3).

5.7. Each packaged roll or bag must be affixed with storage instructions and a label indicating:

trademark of the manufacturer;

lot numbers;

release dates;

symbol;

the number of sheets for the package;

images of the State Quality Mark for sandpaper, which was duly awarded the State Quality Mark;

technical control stamp.

The label must be pasted on the roll at the joint of the wrapping paper.

5.8-5.19. (Excluded, Rev. N 3).

5.20. Other requirements for labeling and packaging, as well as transportation and storage - in accordance with GOST 27595.

(Introduced additionally, Rev. N 3).

6. Manufacturer's Warranties

6.1. (Excluded, Rev. N 1).

6.2. (Deleted, Rev. N 2).

6.3. (Excluded, Rev. N 1).

UDC 621.921.67.02 1: 006.354 Group G25

STATE STANDARD UNION S S R

SANDING PAPER SKIN Specifications

Datasheet Paper Specifications

Valid from 01.01.83 to 01.01.93

This standard applies to paper sandpaper intended for abrasive processing of various materials without cooling or using cutting fluids based on oil, kerosene, white spirit.

1. TYPES AND DIMENSIONS

1 1. Grinding skin should be made of types:

1 - aphid machine and manual processing non-metallic materials (wood, leather, rubber, plastics, etc.);

2 - for machine and manual processing of metals, alloys.

1 2. Grinding skin should be produced in rolls, the dimensions of which are indicated in table. one.

Table 1

Reprint prohibited

Official Edition ★

Note. By order of the consumer, the manufacture of rolls with a length of more than 100 m is allowed

1.3. Sanding paper must be made with the following types working layer:

C - solid;

R - embossed.

1.4. The designs and dimensions of the relief working layer must correspond to those indicated in the drawing and in table. 2.

APPENDIX 2 Wearable

METHOD FOR DETERMINING THE CUTTING ABILITY OF GRINDING

To the essence of the method

The Ovnova-t method on determining the mass of organic glass ground by a sample of the abrasive skin during the test.

2. Equipment and materials

2.1. Scheme and description of the device type MI-2 - according to GOST 426-77.

2.2. Grinding paper samples with outer diameter (1742=5) mm and hole diameter (55±3) mm

2.3. Plates made of organic glass brand TOSN - according to GOST 17622-72.

2.4. Rubber pads hardness 60-80 Shore.

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of Machine Tool and Tool Industry of the USSR

DEVELOPERS

E. I. Ardashev; E. S. Viksman; V. T. Ivashinnikov; N. A. Ilyina; V. A. Kvitko; L. A. Kogan; O. F. Kotlyarov; I. F. Korchmar; V. A. Morozov; E. B. Petrosyan; A. A. Dusty; S. K. Rozin; V. A. Rybakov; N. V. Syreyshchikova; V. D. Tunikov; V. N. Tyrkov

2. APPROVED AND INTRODUCED BY Decree of the USSR State Committee for Standards dated February 18, 1982 No. 735

3. The term of the first check is 1992.

Inspection frequency - 5 years

5. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

6. Validity period extended until 01.01.93 by Decree of the State Standard of the USSR dated 04.23.87 No. 1374

7. REPUBLICATION (April 1990) with Amendments No. 1, 2 D 3, approved in June 1984, April 1987 and July 1989 (NUS 9-84, 8-87 and 11-89J

The angle of inclination of the relief a should be 5 ° - 85 °.

1.5. The deviation from parallelism of the generatric lines of the relief must be within the tolerance per step of the relief.

An example of the designation of paper abrasive paper type 1, with a continuous working layer C, 1000 mm wide. 50 m long, on paper grade 0-200, from normal electrocorundum grade 15A, grain size 25-N, on skin glue:

2. TECHNICAL REQUIREMENTS

2.1. Sandpaper shall be manufactured in accordance with the requirements of this standard.

2.2. Grinding skin should be made from grinding materials listed in Table. 3.

Note. At the request of the consumer, it is allowed to manufacture a grinding pad and other grades of abrasive materials or their mixtures.

GOST €456-82 S. 4

2 3. For the manufacture of abrasive skins, paper should be used as a basis in accordance with GOST 18277-72, GOST 10127-75 and industry regulatory and technical segmentation for 6) magic in accordance with Table. 4.

Note According to hkn pspreiiikpya, it is baked about g t p g g ech to 1 itch (bo-vapnoi shk \ rkn of other grain sizes and their mixtures

(Revised edition, Rev. No. 3).

2.5. The abrasive material must be connected with the base of the mezdr g vym glue in accordance with GOST 3252-80 or other bundles according to industry normative and technical documentation.

Note It is allowed to enter in a bunch ipau.L i km lr. c ie niii cops

2.6. Grain composition of grinding materials - according to GOST 3647-89.

2 7. (Deleted, Rev. No. 3).

2 7 1. On the working surface of the abrasive skin with a continuous working layer, the total area of

kov without abrasive grains, filled with a binder, should not exceed 0.5% of the area of ​​the roll.

Note By agreement with the consumer, the total area of ​​these defects is allowed not more than 1% of the roll area.

2.7.2. On the working surface of the sanding paper with a relief working layer, the total area of ​​defects (fusion and non-printing) of the relief layer per 1 m 2 should not exceed 5% of the area of ​​the roll with the applied abrasive material.

(Revised edition, Rev. No. 3).

2.7.3. In a roll of sanding paper with a width of up to 1250 mm, edges with a width of more than 10 mm with defects are not allowed, with a width of more than 1250 mm - more than 15 mm.

Application On the working surface of silicon carbide and electrocorundshon in sanding skins of 6-M40 grade, dot adhesive formations or inclusions protruding above the working surface are not allowed.

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

2.8. The uneven thickness of the sandpaper should correspond to the values ​​​​specified in Table. 6.

Table b

2.9 The tensile strength of the sandpaper, depending on the grade of paper, must correspond to the values ​​\u200b\u200bspecified in Table. 7.

2.10. The coefficient of application of the sanding material on the base Df for sanding paper with a relief working layer should be 0.40-0.75.

2.11. The moisture content of the sandpaper should be 3-7%.

2.12. The given wear of electrocorundum and glass abrasive skins must correspond to the values ​​\u200b\u200bspecified in Table. 8.

Table 8

il 1 and o h a and e. Pvsdeapyp (nchis karbidkrem.h "7 left shpgDoag zhaoy gshlr-ki iCTocieii 0-M40 type 1 should be 1.5-7.0. type 2 -f" 3 7.0 .

(Revised edition, Rev. No. 2).

2.13. The cutting ability of the sandpaper under the test conditions specified in mandatory Appendix 2 must correspond to the values ​​\u200b\u200bspecified in Table. 8a.

Table 8a

6. The validity period was extended until 01/01/93 by Decree of the USSR State Standard of 04/23/87 N 1374

7. REPUBLICATION (April 1990) with Amendments No. 1, 2, 3 approved in June 1984, April 1987, July 1989 (IUS 9-84, 8-87, 11-89)


This standard applies to abrasive paper intended for abrasive processing of various materials without cooling or using cutting fluids based on oil, kerosene, white spirit.

1. TYPES AND DIMENSIONS

1. TYPES AND DIMENSIONS

1.1. Grinding skin should be made of types:

1 - for machine and manual processing of non-metallic materials (wood, leather, rubber, plastic, etc.);

2 - for machine and manual processing of metals, alloys.

1.2. Grinding skin should be produced in rolls, the dimensions of which are indicated in Table 1.

Table 1

Note. At the request of the consumer, it is allowed to manufacture rolls with a length of more than 100 m.

1.3. Sanding paper should be made with the following types of working layer:

C - solid;

R - embossed.

1.4. The designs and dimensions of the relief working layer must correspond to those indicated in the drawing and in Table 2.

table 2

Dimensions, mm

The angle of inclination of the relief should be 5°-85°.

1.5. The deviation from parallelism of the generatric lines of the relief must be within the tolerance per step of the relief.

An example of a symbol for paper abrasive paper type 1, with a continuous working layer C, 1000 mm wide, 50 m long, on paper grade 0-200, from normal electrocorundum grade 15A, grain size 25-H, on skin glue:

1C 1000X

50 P2 15A 25-N M GOST 6456-82

2. TECHNICAL REQUIREMENTS

2.1. Sandpaper shall be manufactured in accordance with the requirements of this standard.

2.2. Grinding skin should be made from grinding materials listed in Table 3.

Table 3

Note. At the request of the consumer, it is allowed to manufacture abrasive skins from other grades of abrasive materials or their mixtures.

2.3. For the manufacture of sandpaper, paper according to GOST 18277-72, GOST 10127-75 and industry regulatory and technical documentation for paper in accordance with Table 4 should be used as the basis.

Table 4

Note. If the paper does not have an established symbol, it is allowed to indicate its brand in the symbol of the sandpaper.


(Changed edition, Rev. N 2).

2.4. Grinding skin should be made from grinding materials with grain sizes indicated in Table 5.

Table 5

Note. At the request of the consumer, it is allowed to manufacture sandpaper of other grain sizes or their mixtures.


(Changed edition, Rev. N 3).

2.5. The abrasive material must be connected to the base with skin glue in accordance with GOST 3252-80 or other bonds according to industry normative and technical documentation.

Note. It is allowed to introduce dyes or coloring pigments into the bundle.

2.6. Grain composition of grinding materials - according to GOST 3647-80.

2.7. (Deleted, Rev. N 3).

2.7.1. On the working surface of the sanding paper with a continuous working layer, the total area of ​​wrinkles, folds, areas without abrasive grains, filled with a bundle, should not exceed 0.5% of the roll area.

Note. By agreement with the consumer, the total area of ​​these defects is allowed no more than 1% of the roll area.

2.7.2. On the working surface of the sanding paper with a relief working layer, the total area of ​​defects (fusion and non-printing) of the relief layer per 1 m2 should not exceed 5% of the area of ​​the roll with the applied abrasive material.

(Changed edition, Rev. N 3).

2.7.3. In a roll of sanding paper with a width of up to 1250 mm, edges with a width of more than 10 mm with defects are not allowed, with a width of more than 1250 mm - more than 15 mm.

Note. On the working surface of silicon carbide and electrocorundum sanding paper with a grain size of 6-M40, dot adhesive formations or inclusions protruding above the working surface are not allowed.


(Changed edition, Rev. N 1, 2, 3).

2.8. The unevenness of the thickness of the sandpaper should correspond to the values ​​indicated in Table 6.

Table 6

2.9. The tensile strength of the abrasive skin, depending on the grade of paper, must correspond to the values ​​\u200b\u200bspecified in Table 7.

Table 7

2.10. The coefficient of application of the abrasive material on the base for abrasive paper with a relief working layer should be 0.40-0.75.

2.11. The moisture content of the sandpaper should be 3-7%.

2.12. The given wear of electrocorundum and glass abrasive skins must correspond to the values ​​indicated in Table 8.

Table 8

Note. The reduced wear of silicon carbide sanding paper grits 6-M40 type 1 should be 1.5-7.0; type 2 - St. 7.0.


(Changed edition, Rev. N 2).

2.13. The cutting ability of the sandpaper under the test conditions specified in mandatory annex 2 must correspond to the values ​​\u200b\u200bspecified in table 8a.

Table 8a

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

3. ACCEPTANCE RULES

3.1. Acceptance inspection and periodic testing should be carried out to verify that the abrasive paper meets the requirements of this International Standard.

3.2. Acceptance control for compliance with the requirements of clauses 1.2, 2.7.1, 2.7.2 and 2.7.3 must be subjected to at least 1% of the rolls of sandpaper from the batch, but not less than 3 pieces, according to clause 1.4; 1.5; 2.12 and 2.13 - 0.1%, but not less than 3 pcs.

3.1, 3.2. (Changed edition, Rev. N 2).

3.2.1. The batch must consist of sandpaper of the same specification, made in one shift and simultaneously presented for acceptance according to one document.

3.3. If, during the acceptance control, non-compliance with the requirements of the standard for more than one controlled indicator is established, then the lot is not accepted.

(Changed edition, Rev. N 2).

3.3.1. If a non-compliance with the requirements of the standard is established for one of the controlled indicators, then a second control is carried out on a double number of skin rolls.

If there are defects in the resampling, the lot is not accepted.

(Introduced additionally, Rev. N 2).

3.4. Products (one of the sizes of rolls) that have passed the acceptance control (according to clause 3.2) must be subjected to periodic tests for compliance with the requirements of clauses 2.8 and 2.10 0.5%, but not less than 3 pieces, clauses 2.9 and 2.11 0.5 % rolls of sanding paper grit 40; 8; 5 and M40, but not less than 3 pieces, item 2.9 - on all types of bases.

(Changed edition, Rev. N 2).

3.5. Periodic tests should be carried out at least once a year.

(Changed edition, Rev. N 3).

4. CONTROL AND TEST METHODS

4.1-4.1.2. (Excluded, Rev. N 2).

4.2. The dimensions and external defects of the working surface of the abrasive skin are measured with a measuring metal ruler in accordance with GOST 427-75 or with a measuring metal tape measure in accordance with GOST 7502-89.

4.2.1. The slope angle of the relief is measured by universal measuring instruments or a special template.

4.3. The uneven thickness of the skin is measured with a micrometer of the MK type (with a tolerance limit of ±0.01 mm) at a distance of at least 10 mm from the edge of the roll.

(Changed edition, Rev. N 2).

4.4. The calculation of the coefficient of application of abrasive material on the base is given in the mandatory Appendix 1.

4.5. To determine the moisture content of the sandpaper, three samples with dimensions of 100x100 mm are taken, weighed on technical scales with a maximum error limit of ±0.01 g. The sandpaper samples are placed in an oven and dried at a temperature of (100±5) °C until between two successive weighings will not exceed 0.02 g.

The moisture content of the sandpaper is determined by the difference between the masses before and after drying and is calculated as a percentage of the original mass.

4.6. The reduced wear of the sandpaper (the ratio of the grit size of the sandpaper to its crumbling) is determined on the KZSH VNIIASH device by abrasion of the sandpaper on the sandpaper for 2 minutes at a load of 29.4 N.

Two samples of sandpaper with dimensions of 395x50 mm and 520x50 mm are subjected to the test.

Samples are weighed on technical scales with a margin of error of ±0.05 g.

Notes:

1. The crumbling of the abrasive skin is equal to the mass of the crumbled working layer in a given time interval under given conditions.

2. When calculating the reduced wear for grain sizes M63; M50 and M40 in the numerator are taken, respectively, the numbers 5; 4 and 3.


(Changed edition, Rev. N 2).

4.7. The method for determining the cutting ability of sandpaper is given in mandatory annex 2.

4.8. Determination of the tensile strength of the abrasive skins is carried out according to GOST 13525.1-79, except for paragraphs 3.1 and 4.1 at ambient temperature. The maximum deviations of the dimensions of the test specimens shall be ±1.0 mm.

(Changed edition, Rev. N 2).

4.9. Samples for control according to paragraphs 4.1-4.8 are taken from any place of the roll, remote from the end of the roll or edges by at least 10 mm. The value of the indicators according to paragraphs 4.3 and 4.5-4.8 is taken as the arithmetic mean of three determinations.

5. MARKING, PACKAGING, TRANSPORT AND STORAGE

5.1. On the non-working surface of the abrasive paper roll, every (235 ± 20) mm in the longitudinal and every (200 ± 20) mm in the transverse directions must be applied:


symbol (except for the type and indication of the type of the working layer);

batch number.

Notes:

1. When using a mixture of abrasive materials, mark the brand of the main grinding material in the symbol, when using a mixture of grit sizes, mark the main grit.

2. By agreement with the consumer, the dimensions of the roll may not be applied.


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

5.2. Link markings:

skin glue - M;

combined ligament - K.

5.3. The winding of the sanding paper into rolls should be even and dense, with the working layer outward, preventing the formation of wrinkles, folds and crumpled places.

The end surface must be even, the protrusions of the edges of the roll with a width of up to 1250 mm should not exceed 5 mm, with a width of more than 1250 mm - 10 mm.

(Changed edition, Rev. N 3).

5.4. Each roll of sandpaper must be wrapped with a double layer of paper in accordance with GOST 18277-72, GOST 2228-81 or GOST 10127-75.

The roll must be sealed at the joint. The layers of wrapping paper should cover the ends of the roll and ensure its safety during transportation.

5.5. (Deleted, Rev. N 3).

5.6. Each packaged roll must be labeled or stamped with the following data:

trademark of the manufacturer;

symbol;

release date and batch number;

technical control stamp;

image of the State Quality Mark according to NTD for sanding paper, which was duly awarded the State Quality Mark.

5.7-5.16. (Excluded, Rev. N 3).

5.17. The remaining requirements for labeling and packaging, as well as transportation and storage, are in accordance with GOST 27595-88.

(Introduced additionally, Rev. N 3).

Section 6. (Deleted, Rev. N 2).

APPENDIX 1 (mandatory). CALCULATION OF THE COEFFICIENT OF APPLICATION OF GRINDING MATERIAL ON THE BASIS

ATTACHMENT 1
Mandatory

Coefficient of application of abrasive material on the base (- ratio of the area of ​​the base with applied abrasive material to its total area) for:

executions 1 and 3 is calculated by the formula

where is the relief width, mm;

Relief step, mm;

execution 2 is calculated by the formula

execution 4 is calculated by the formula

(Changed edition, Rev. N 1).

APPENDIX 2 (mandatory). METHOD FOR DETERMINING THE CUTTING ABILITY OF A GRINDING PAD

APPENDIX 2
Mandatory

1. The essence of the method

The method is based on the determination of the mass of organic glass ground by a sample of abrasive paper during the test.

2. Equipment and materials

2.1. Scheme and description of the device type MI-2 - according to GOST 426-77.

2.2. Grinding paper samples with an outer diameter of (174±5) mm and a hole diameter of (55±3) mm.

2.3. Plates made of organic glass brand TOSN - according to GOST 17622-72.

2.4. Rubber pads hardness 60-80 Shore.

2.5. Glue grades BF-2 and BF-4 in accordance with GOST 12172-74 or other grades that ensure the strength of the connection of organic glass plates with a rubber gasket - according to regulatory and technical documentation.

(Changed edition, Rev. N 2).

3. Preparation for the test

3.1. Stick the plates on the rubber pads.

3.2. New plexiglass plates are pre-lapped under test conditions until signs of wear appear on the entire working surface of the plates, cleaned of dust and weighed with an error limit of ± 0.01 g.

4. Testing

4.1. Set the test modes indicated in the table.

(Changed edition, Rev. N 1, 2).

4.2. Mount the sanding pad to be tested, changing the sanding pad on the disc after lapping.

4.3. Fix the organic glass plates in the holders in the same position as when grinding.

4.4. At the end of the test, release the plexiglass plates, clean them from dust and weigh them with an error limit of ±0.01 g.

5. Processing of test results

5.1. Cutting capacity (g/min) is determined by the formula

where is the mass of ground organic glass, g;

5 - processing time, min.



Electronic text of the document
prepared by Kodeks JSC and verified against:
official publication
Grinding cloth and paper skin.
Specifications: Sat. GOSTs. -
M.: Publishing house of standards, 1990

Approved and put into effect

Decree of the State Standard of the USSR

STATE STANDARD OF THE UNION OF THE SSR

PAPER SKIN

TECHNICAL CONDITIONS

Abrasive paper. Specifications

GOST 6456-82

Group G25

OKP 39 8600

Validity

INFORMATION DATA

1. Developed and introduced by the Ministry of Machine-Tool and Tool Industry of the USSR.

Developers: E.I. Ardashev; E.S. Viksman; V.T. Ivashinnikov; ON THE. Ilyin; V.A. Kvitko; L.A. Kogan; O.F. Kotlyarov; I.F. Tavern; V.A. Morozov; E.B. Petrosyan; A.A. Pylnev; S.K. Rozin; V.A. Rybakov; N.V. Syreyshchikov; V.D. Tunikov; V.N. Tyrkov.

2. Approved and put into effect by the Decree of the USSR State Committee for Standards dated February 18, 1982 N 735.

3. The term of the first check is 1992.

The frequency of verification is 5 years.

4. Instead of GOST 6456-75.

5. Reference normative and technical documents

────────────────────────────────────┬─────────────────────────────

Designation of NTD, │ Item number, sub-item,

────────────────────────────────────┼─────────────────────────────

GOST 426-77│Appendix 2

GOST 427-75│4.2

GOST 2228-81│5.4

GOST 3252-80│2.5

GOST 3647-80│2.6

GOST 7502-89│4.2

GOST 10127-75│2.3; 5.4

GOST 12172-74│Appendix 2

GOST 13525.1-79│4.8

GOST 17622-72│Appendix 2

GOST 18277-72│2.3; 5.4

GOST 27595-88│5.17

6. The validity period was extended until 01/01/1993 by the Decree of the USSR State Standard of 04/23/1987 N 1374.

7. Reissue (April 1990) with Changes N 1, 2, 3, approved in June 1984, April 1987, July 1989 (IUS 9-84, 8-87, 11-89).

This standard applies to abrasive paper intended for abrasive processing of various materials without cooling or using cutting fluids based on oil, kerosene, white spirit.

1. TYPES AND DIMENSIONS

1.1. Grinding skin should be made of types:

1 - for machine and manual processing of non-metallic materials (wood, leather, rubber, plastic, etc.);

2 - for machine and manual processing of metals, alloys.

1.2. Grinding skin should be produced in rolls, the dimensions of which are indicated in table. one.

Table 1

───────────┬────────────────────────────────┬─────────────────────

Grain size│Width, mm (prem. devi. +/- 3.0)│Length, m (prem. devi.

│ 720; 750; 800; 850; 900; 1000│30

40 - 16│1250; 1350; 1400│

───────────┼────────────────────────────────┤

40; 32│1000│

───────────┼────────────────────────────────┼─────────────────────

40 - 16│720; 750; 800; 850; 900│50

───────────┼────────────────────────────────┤

25 - 10│1000│

───────────┼────────────────────────────────┤

───────────┼────────────────────────────────┤

12 - М40 │1250; 1350; 1400│

├────────────────────────────────┼─────────────────────

│720; 750; 800; 850; 900│100

───────────┼────────────────────────────────┤

8 - М40 │1000│

Note. At the request of the consumer, it is allowed to manufacture rolls with a length of more than 100 m.

1.3. Sanding paper should be made with the following types of working layer:

C - solid;

R - embossed.

1.4. The designs and dimensions of the relief working layer must correspond to those indicated in the drawing and in table. 2.

Version 1

Execution 2

Version 3

Version 4

table 2

Dimensions, mm

─────────────┬────────────────────┬───────────────────────────────

Grain size │Width, a│Pitch, t

├────────────┬───────┼──────────────┬────────────────

│Interval│ Prev. │Interval│Prev. off

││ off ││

50 - 40│ 3,0 - 15,0 │+/- 1,0│4,0 - 38,0│+/- 2,0

─────────────┼────────────┤├──────────────┤

32 - 25│ 1,5 - 12,0 ││3,0 - 30,0│

─────────────┼────────────┼───────┼──────────────┼────────────────

20 - 16│ 1,0 - 10,0 │+/- 0,3│2,5 - 25,0│+/- 1,0

─────────────┼────────────┤├──────────────┼────────────────

12 - М40│ 0.5 - 5.0││1.0 - 20.0│+/- 0.5

The slope angle of the relief should be 5° - 85°.

1.5. The deviation from parallelism of the generatric lines of the relief must be within the tolerance per step of the relief.

An example of a symbol for paper abrasive paper type 1, with a continuous working layer C, 1000 mm wide, 50 m long, on paper grade 0-200, from normal electrocorundum grade 15A, grain size 25-H, on skin glue:

1C 1000 X 50 P2 15A 25-N M GOST 6456-82

2. TECHNICAL REQUIREMENTS

2.1. Sandpaper shall be manufactured in accordance with the requirements of this standard.

2.2. Grinding skin should be made from grinding materials listed in Table. 3.

Table 3

Type of abrasive material│ Brand of abrasive material

Normal electrocorundum│15A; 14A; F14A; 13A; F13A

White electrocorundum│25A; 24A; 23A

Alloyed electrocorundum│94А; 93A; 92A; 91A; 91A-M and 92A-M

Zirconium electrocorundum│38A

Monocorundum│44А; 43A

Green silicon carbide│64С; 63C

Black silicon carbide│54С; 53C; 51С

Glass│71st

Note. At the request of the consumer, it is allowed to manufacture abrasive skins from other grades of abrasive materials or their mixtures.

2.3. For the manufacture of sandpaper, paper should be used as a basis in accordance with GOST 18277-72, GOST 10127-75 and industry regulatory and technical documentation for paper in accordance with Table. 4.

Table 4

────────────────┬─────────────────┬─────────────────┬─────────────

Paper brand│Conditional│Paper brand│Conditional

│designation││ designation

────────────────┼─────────────────┼─────────────────┼─────────────

0-140│P1│BSh-140│P6

0-200│P2│BSh-200│P7

0-210│P3│BSh-240│P8

0-235│P4│BV-225│P9

0-240│P5│BVK-225│P10

││OV-200│P11

Note. If the paper does not have an established symbol, it is allowed to indicate its brand in the symbol of the sandpaper.

(Changed edition, Rev. N 2).

2.4. Grinding skin should be made from grinding materials of grain sizes indicated in Table. five.

Table 5

─────────────┬────────────────────────────────────────────────────

Conditional│Grain

├──────────────┬──────────── ────

paper│electrocorundum-│monocorundum│carbide│glass

│silicon││

│grinding materials│││

─────────────┼──────────────┼───────────┼──────────────┼──────────

P2; P3; P4; │50-M40│50 - 6│25-M40│50 - 6

P5; P7; P8; ││││

P9; P10; П11││││

─────────────┼──────────────┤├──────────────┼──────────

P1; П6│25-М40││16-М40│25 - 6

Note. At the request of the consumer, it is allowed to manufacture sandpaper of other grain sizes or their mixtures.

(Changed edition, Rev. N 3).

2.5. The abrasive material must be connected to the base with skin glue in accordance with GOST 3252-80 or other bonds according to industry normative and technical documentation.

Note. It is allowed to introduce dyes or coloring pigments into the bundle.

2.6. Grain composition of grinding materials - according to GOST 3647-80.

2.7. (Deleted, Rev. N 3).

2.7.1. On the working surface of the sanding paper with a continuous working layer, the total area of ​​wrinkles, folds, areas without abrasive grains, filled with a bundle, should not exceed 0.5% of the roll area.

Note. By agreement with the consumer, the total area of ​​these defects is allowed no more than 1% of the roll area.

2.7.2. On the working surface of the sanding paper with a relief working layer, the total area of ​​defects (fusion and non-printing) of the relief layer per 1 m2 should not exceed 5% of the area of ​​the roll with the applied abrasive material.

(Changed edition, Rev. N 3).

2.7.3. In a roll of sanding paper with a width of up to 1250 mm, edges with a width of more than 10 mm with defects are not allowed, with a width of more than 1250 mm - more than 15 mm.

Note. On the working surface of silicon carbide and electrocorundum sanding paper with a grain size of 6-M40, dot adhesive formations or inclusions protruding above the working surface are not allowed.

(Changed edition, Rev. N 1, 2, 3).

2.8. The uneven thickness of the sandpaper should correspond to the values ​​​​specified in Table. 6.

Table 6

────────────────────────────────┬─────────────────────────────────

Grain size│ Thickness unevenness, mm, not

────────────────────────────────┼─────────────────────────────────

M63 - M40│0.06

2.9. The tensile strength of the sandpaper, depending on the grade of paper, must correspond to the values ​​\u200b\u200bspecified in Table. 7.

Table 7

──────────┬─────────────────────┬───────────┬─────────────────────

Conditional│ Breaking load, │ Conditional│ Breaking load,

designation - │Н, not less, in│designation│Н, not less than, in

paper│directions│paper│directions

├──────────┬──────────┤├──────────┬──────────

│longitudinal│transverse││longitudinal│transverse

P1│196.0│107.8│P7│225.4│117.6

──────────┼──────────┼──────────┼───────────┼──────────┼──────────

P2│245.0│137.2│P8│274.4│137.2

──────────┼──────────┼──────────┼───────────┼──────────┼──────────

P3│294.0│156.8│P9│401.8│175.5

──────────┤│├───────────┼──────────┼──────────

P4│││P10│372.4│157.0

──────────┼──────────┼──────────┼───────────┼──────────┼──────────

P5│392.0│98.0│P11│225.5│117.6

──────────┼──────────┤│││

P6│176.4││││

2.10. The coefficient of application of abrasive material on the base for abrasive paper with a relief working layer should be 0.40 - 0.75.

2.11. The moisture content of the sanding paper should be 3 - 7%.

2.12. The given wear of electrocorundum and glass grinding skins must correspond to the values ​​\u200b\u200bspecified in Table. 8.

Table 8

─────────────────────┬────────────────────────────────────────────

Grit│Reduced wear for types

├────────────────────┬───────────────────────

─────────────────────┼────────────────────┼───────────────────────

50 - 32│5.0 - 20.0│St. 20.0

25 - 16│4,0 - 15,0│"15,0

12 - 6│2,0 - 11,0│"11,0

5 - М40│1.5 - 9.0│"9.0

Note. The reduced wear of silicon carbide sanding paper grit 6 - M40 type 1 should be 1.5 - 7.0; type 2 - St. 7.0.

(Changed edition, Rev. N 2).

2.13. The cutting ability of the sandpaper under the test conditions specified in the mandatory Appendix 2 must correspond to the values ​​\u200b\u200bspecified in Table. 8a.

Table 8a

───────────────┬──────────────────────────────────────────────────

Grain size│Cutting ability of the skin, g/min, not less than

├─────────────────┬─────────────────┬──────────────

│ electrocorundum │ silicon carbide │ glass

50│0,422│0,450│0,300

───────────────┼─────────────────┼─────────────────┼──────────────

40│0,300│0,320│0,260

───────────────┤││

───────────────┼─────────────────┼─────────────────┼──────────────

25│0,290│0,300│0,250

───────────────┼─────────────────┼─────────────────┼──────────────

20│0,200│0,220│0,160

───────────────┼─────────────────┼─────────────────┼──────────────

16│0,195│0,210│0,110

───────────────┼─────────────────┼─────────────────┼──────────────

12│0,187│0,205│0,080

───────────────┼─────────────────┼─────────────────┼──────────────

10│0,176│0,200│0,070

───────────────┼─────────────────┼─────────────────┼──────────────

8│0,151│0,195│0,060

───────────────┼─────────────────┼─────────────────┼──────────────

6│0,100│0,192│-

5│0,079│-│

───────────────┼─────────────────┤│

───────────────┼─────────────────┼─────────────────┤

М63│0.079│0.066│

───────────────┼─────────────────┼─────────────────┤

M50│0.038│0.025│

───────────────┼─────────────────┼─────────────────┤

M40│0.014│0.021│

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

3. ACCEPTANCE RULES

3.1. Acceptance inspection and periodic testing should be carried out to verify that the abrasive paper meets the requirements of this International Standard.

3.2. Acceptance control for compliance with the requirements of paragraphs. 1.2, 2.7.1, 2.7.2 and 2.7.3 must be subjected to at least 1% of the rolls of sandpaper from the batch, but not less than 3 pieces, according to paragraphs. 1.4; 1.15; 2.12 and 2.13 - 0.1%, but not less than 3 pcs.

3.1, 3.2. (Changed edition, Rev. N 2).

3.2.1. The batch must consist of sandpaper of the same specification, made in one shift and simultaneously presented for acceptance according to one document.

3.3. If, during the acceptance control, non-compliance with the requirements of the standard for more than one controlled indicator is established, then the lot is not accepted.

(Changed edition, Rev. N 2).

3.3.1. If a non-compliance with the requirements of the standard is established for one of the controlled indicators, then a second control is carried out on a double number of skin rolls.

If there are defects in the resampling, the lot is not accepted.

(Introduced additionally, Rev. N 2).

3.4. Products (one of the sizes of rolls) that have passed the acceptance control (according to clause 3.2) should be subjected to periodic tests for compliance with the requirements of clauses. 2.8 and 2.10 0.5%, but not less than 3 pcs., paragraphs. 2.9 and 2.11 0.5% 40 grit rolls of sanding paper; 8; 5 and M40, but not less than 3 pieces, item 2.9 - on all types of bases.

(Changed edition, Rev. N 2).

3.5. Periodic tests should be carried out at least once a year.

(Changed edition, Rev. N 3).

4. CONTROL AND TEST METHODS

4.1 - 4.1.2. (Excluded, Rev. N 2).

4.2. The dimensions and external defects of the working surface of the abrasive skin are measured with a measuring metal ruler in accordance with GOST 427-75 or with a measuring metal tape measure in accordance with GOST 7502-89.

4.2.1. The slope angle of the relief is measured by universal measuring instruments or a special template.

4.3. The uneven thickness of the skin is measured with a micrometer of the MK type (with an error limit of +/- 0.01 mm) at a distance of at least 10 mm from the edge of the roll.

(Changed edition, Rev. N 2).

4.4. The calculation of the coefficient of application of abrasive material on the base is given in the mandatory Appendix 1.

4.5. To determine the moisture content of the sandpaper, three samples with dimensions of 100 x 100 mm are taken, weighed on technical scales with a maximum error limit of +/- 0.01 g. The sandpaper samples are placed in an oven and dried at a temperature of (100 +/- 5) ° C until the difference between two successive weighings does not exceed 0.02 g.

The moisture content of the sandpaper is determined by the difference between the masses before and after drying and is calculated as a percentage of the original mass.

4.6. The reduced wear of the sandpaper (the ratio of the grit size of the sandpaper to its crumbling) is determined on the KZSH VNIIASH instrument by rubbing the sandpaper against the sandpaper for 2 minutes at a load of 29.4 N.

The test is carried out on two sanding pads measuring 395 x 50 mm and 520 x 50 mm.

Samples are weighed on technical scales with a margin of error of +/- 0.05 g.

Notes. 1. The crumbling of the abrasive skin is equal to the mass of the crumbled working layer in a given time interval under given conditions.

2. When calculating the reduced wear for grain sizes M63; M50 and M40 in the numerator are taken, respectively, the numbers 5; 4 and 3.

(Changed edition, Rev. N 2).

4.7. The method for determining the cutting ability of sandpaper is given in the mandatory Appendix 2.

4.8. Determination of the tensile strength of the abrasive skin is made in accordance with GOST 13525.1-79, except for paragraphs. 3.1 and 4.1 at ambient temperature. Limit deviations of the dimensions of the test specimens shall be +/- 1.0 mm.

(Changed edition, Rev. N 2).

4.9. Samples for control according to paragraphs. 4.1 - 4.8 are taken from any place of the roll, remote from the end of the roll or edges not less than 10 mm. The value of the indicators according to paragraphs. 4.3 and 4.5 - 4.8 is taken as the arithmetic mean of the three determinations.

5. MARKING, PACKAGING, TRANSPORT AND STORAGE

5.1. On the non-working surface of the abrasive paper roll, every (235 +/- 20) mm in the longitudinal and every (200 +/- 20) mm in the transverse directions must be applied:

symbol (except for the type and indication of the type of the working layer);

batch number.

Notes. 1. When using a mixture of abrasive materials, mark the brand of the main grinding material in the symbol, when using a mixture of grain sizes, mark the main grain size.

2. By agreement with the consumer, the dimensions of the roll may not be applied.

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

5.2. Link markings:

skin glue - M;

combined ligament - K.

5.3. The winding of the sanding paper into rolls should be even and dense, with the working layer outward, preventing the formation of wrinkles, folds and crumpled places.

The end surface must be even, the protrusions of the edges of the roll with a width of up to 1250 mm should not exceed 5 mm, with a width of more than 1250 mm - 10 mm.

(Changed edition, Rev. N 3).

5.4. Each roll of sandpaper must be wrapped with a double layer of paper in accordance with GOST 18277-72, GOST 2228-81 or GOST 10127-75.

The roll must be sealed at the joint. The layers of wrapping paper should cover the ends of the roll and ensure its safety during transportation.

5.5. (Deleted, Rev. N 3).

5.6. Each packaged roll must be labeled or stamped with the following data:

trademark of the manufacturer;

symbol;

release date and batch number;

technical control stamp;

image of the State Quality Mark according to NTD for sanding paper, which was duly awarded the State Quality Mark.

5.7 - 5.16. (Excluded, Rev. N 3).

5.17. Other requirements for labeling and packaging, as well as transportation and storage - in accordance with GOST 27595-88.

(Introduced additionally, Rev. N 3).

Sec. 6. (Deleted, Rev. N 2).

Attachment 1

Mandatory

CALCULATION OF THE COEFFICIENT OF APPLICATION OF GRINDING MATERIAL ON THE BASIS

The ratio of the application of abrasive material to the base (- the ratio of the area of ​​​​the base with the applied abrasive material to its total area) for:

executions 1 and 3 is calculated by the formula

where a is the width of the relief, mm;

t - relief step, mm;

execution 2 is calculated by the formula

execution 4 is calculated by the formula

.

(Changed edition, Rev. N 1).

Appendix 2

Mandatory

METHOD FOR DETERMINING THE CUTTING ABILITY OF A GRINDING PAD

1. The essence of the method

The method is based on the determination of the mass of organic glass ground by a sample of abrasive paper during the test.

2. Equipment and materials

2.1. Scheme and description of the device type MI-2 - according to GOST 426-77.

2.2. Grinding paper samples with an outer diameter of (174 +/- 5) mm and a hole diameter of (55 +/- 3) mm.

2.3. Plates made of organic glass brand TOSN - according to GOST 17622-72.

2.4. Rubber pads hardness 60 - 80 Shore.

2.5. Glue grades BF-2 and BF-4 in accordance with GOST 12172-74 or other grades that ensure the strength of the connection of organic glass plates with a rubber gasket - according to regulatory and technical documentation.

(Changed edition, Rev. N 2).

3. Preparation for the test

3.1. Stick the plates on the rubber pads.

3.2. New plexiglass plates are pre-lapped under test conditions until signs of wear appear on the entire working surface of the plates, cleaned of dust and weighed with a margin of error of +/- 0.01 g.

4. Testing

4.1. Set the test modes indicated in the table.

───────────────┬─────────────────┬─────────────────┬──────────────

Grain size│Clamping force, N│ Processing time,│Presence of blowing

││min│ during processing

───────────────┼─────────────────┼─────────────────┼──────────────

80 - 50│98.0│5│No airflow

40 - 25│72,5│├──────────────

20 - 6│49.0││With blower

5 - M40│25.5││

(Changed edition, Rev. N 1, 2).

4.2. Mount the sanding pad to be tested, changing the sanding pad on the disc after lapping.

4.3. Fix the organic glass plates in the holders in the same position as when grinding.

4.4. At the end of the test, release the organic glass plates, clean them from dust and weigh them with a margin of error of +/- 0.01 g.

5. Processing of test results

5.1. Cutting capacity (Q g/min) is determined by the formula

where m is the mass of ground organic glass, g;

5 - processing time, min.

STATE STANDARD OF THE UNION OF THE SSR

Validity from 01.01.83

This standard applies to abrasive paper intended for abrasive processing of various materials without cooling or using cutting fluids based on oil, kerosene, white spirit.

1. TYPES AND DIMENSIONS

1.1. Grinding skin should be made of types:

1 - for machine and manual processing of non-metallic materials (wood, leather, rubber, plastic, etc.);

2 - for machine and manual processing of metals, alloys.

Note . At the request of the consumer, it is allowed to manufacture rolls with a length of more than 100 m

1.3. Sanding paper should be made with the following types of working layer:

C - solid;

Dimensions, mm

The angle of inclination of the relief a must be 5° - 85°.

Symbol example type 1 paper sandpaper, with a continuous working layer C, 1000 mm wide. 50 m long, on paper grade 0-290, from normal electrocorundum grade 15A, grain size 25-N, on skin glue:

1S 1000´ 50 P2 15A 25-N M GOST 6456-82

2. TECHNICAL REQUIREMENTS

2.1. Sandpaper shall be manufactured in accordance with the requirements of this standard.

2.2. Grinding skin should be made from grinding materials listed in Table. .

Note . At the request of the consumer, it is allowed to manufacture abrasive skins from other grades of abrasive materials or their mixtures.

Note . If the paper does not have an established symbol, it is allowed to indicate its brand in the symbol of the sandpaper.

(Revised edition, Rev. No. 2).

2.4. Grinding skin should be made from grinding materials of grain sizes indicated in Table. .

Note . At the request of the consumer, it is allowed to manufacture sandpaper of other grain sizes or their mixtures.

(Revised edition, Rev. No. 3).

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

(Revised edition, Rev. No. 3).

Note . On the working surface of silicon carbide and electrocorundum sanding paper with a grain size of 6-M40, dot adhesive formations or inclusions protruding above the working surface are not allowed.

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

Note . The reduced wear of silicon carbide sanding paper grit 0-M40 type 1 should be 1.5-7.0; type 2 - St. 7.0.

(Revised edition, Rev. No. 2).

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

3. ACCEPTANCE RULES

3.1. Acceptance inspection and periodic testing should be carried out to verify that the abrasive paper meets the requirements of this International Standard.

4.2.1. The slope angle of the relief is measured by universal measuring instruments or a special template.

(Revised edition, Rev. No. 2).

4.4. Calculation of the coefficient of application of abrasive material on the base TO n is given in the obligatory appendix.

The roll must be sealed at the joint. The layers of wrapping paper should cover the ends of the roll and ensure its safety during transportation.

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

5.6. Each packaged roll must be labeled or stamped with the following data:

trademark of the manufacturer;

symbol;

date of issue and batch size;

technical control stamp;

image of the State Quality Mark according to NTD for sanding paper, which was duly awarded the State Quality Mark.

5.7 - 5.16. (Excluded, Rev.. № 3).

5.17. Other requirements for labeling and packaging, as well as transportation and storage - according to