Sandpaper GOST 6456 75. Grinding paper sandpaper. Specifications. Types and sizes

14.11.2019

State standard USSR GOST 6456-82

"SANDING PAPER SKIN. SPECIFICATIONS"

Abrasive paper. Specifications

Instead of GOST 6456-75

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 sizes

1.1. Grinding skin should be made of types:

1 - for machine and manual processing 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	Width, mm (limit deviation ±3, 0)	Length, m (limit deviation ±0.5)

	720; 750; 800; 850; 900; 1000
	1250; 1350; 1400

	720; 750; 800; 850; 900


	1250; 1350; 1400
	720; 750; 800; 850; 900

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

Grain	Width, a
Grain	Interval	Previous off	Interval	Previous off

The slope of the relief alpha 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.

Example symbol 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, grit 25-H, on skin glue:

1C 1000X50 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	Grade of sanding material
Normal electrocorundum	15A; 14A; F14A; 13A; F13A
White electrocorundum	25A; 24A; 23A
Alloyed electrocorundum	94A; 93A; 92A; 91A; 91A-M and 92A-M
Zirconium electrocorundum
monocorundum
Green silicon carbide
Black silicon carbide	54C; 53C; 51С

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, GOST 10127 and industry regulatory and technical documentation for paper should be used as a basis in accordance with Table. four.

Table 4

Paper grade	Symbol	Paper grade	Symbol

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. 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. Sanding material must be connected to the base with skin glue according to GOST 3252 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.

2.7. (Deleted, Rev. N 3).

2.7.1. On the working surface of the abrasive 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 m 2 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

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

Paper convention	Paper convention
Paper convention	Paper convention	longitudinal	transverse	longitudinal	transverse

2.10. The coefficient of application of the abrasive material on the base K n 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 grinding skins must correspond to the values \u200b\u200bspecified in Table. eight.

Table 8

Grain	Reduced wear for types
Grain

Note. The reduced wear of silicon carbide abrasive 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 Appendix 2 must correspond to the values \u200b\u200bspecified in Table. 8a.

Table 8a

Grain	Cutting ability of the skin, g/min, not less than
Grain	electrocorundum	silicon carbide	glass

(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 sandpaper; eight; 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. Methods of control and testing

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 or with a measuring metal tape measure in accordance with GOST 7502.

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. Calculation of the coefficient of application of a thin section of the material on the base K n is given in the mandatory Appendix 1.

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 abrasion of the sandpaper on the sandpaper for 2 minutes at a load of 29.4 N.

The test is carried out on two samples of sandpaper with dimensions of 395x50 mm and 520x50 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 mandatory annex 2.

4.8. Determination of the tensile strength of the abrasive skin is made according to GOST 13525.1, except for paragraphs. 3.1 and 4.1 at temperature environment. 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 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, transportation 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, GOST 2228 or GOST 10127.

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).

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.

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.

2.4. Rubber pads hardness 60-80 Shore.

2.5. Glue grades BF-2 and BF-4 in accordance with GOST 12172 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	Clamping force, N	Processing time, min	The presence of blowing during processing
			Without airflow
			Without airflow
			with airflow
			with airflow

(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.

>DK 621.921.67.021: 006.354 Group G25

STATE C I 1 N D A 5 G UNION SSR

PAPER SKIN

Specification

Awasive paper specifications

Deadline from 01.01.83

Real5;;| The standard applies to paper abrasive rolls intended for abrasive»"! processing of various materials without cooling or using cutting fluids based on oil, kerosene, vant-epnrite.

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, splaez.

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

Table I

Lerepechltha aosprvshema

GOST 6 "b-3J C. 2

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

C - solid; t P - embossed.

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

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

1 5. The deviation from parallelism of the generatrices of the relief lines should be within the tolerance for the step of the relief.

Pokmer of the symbol for type 1 paper sandpaper, with a continuous working layer S. 1000 mm wide. 50 m long, on paper grade 0-200. from normal electro.chorunla brand 15A, grain size 25-M. on skin glue:

S 1000X50 P2 I5A 25-I 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.

P r i e h a h i r. At the order of the graver, it is allowed to use p; ga? o “le> 1st grinding wheel> rk” III drull mlrok iL-lchfmetsrials OR THEIR mixtures.

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

GOST 4456-82 C. t

2.3. For the manufacture of abrasive skins as an axis, you must use paper in accordance with GOST 18277 - 72. GOST 10127-75 and industry normative and technical:! d-hch, chentesht on paper in accordance with the table. -I.

11 rimech L1 on. Seli C;.«^ia has no mustache i^hos.ichko: and conditional 1"lma" chenmi. dpiusmpsya y jo.MHiiru offendmachskki grinding tour>and ^ka ^vat her brand.

(Revised edition, Rev. As 2).

2.4. Grinding skin should be made from sanding ternals, granular gay, indicated in Table. 5.

Note. According to. "ika" y iioipeuiire.iH h tmge /.ei is allowed. " l - shfo-hip 111K\rki others. irii guests or their mixtures.

(Revised edition, Rev. No. 3).

2.5. The abrasive material must be connected to the base of the core with glue according to GOST 3252-80 or other bonds according to industry, regulatory and technical documentation.

When m with m and and e. It is allowed to enter a bunch of r.p:i 4 ".i.v. i nor *f:.cr Hire pshien-sh.

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

2.7. (Excluded. Rev. No. 3).

2.7.1. On the working surface of the sanding skin: with a sp.sh-th working layer, the total area of wrinkles, folds,

S. 5 GOST 6454- ":

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

Note. By agreement with the consumer, the total failure of the indicated defects is allowed no more than 1% of the roll flat.

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

2.7.2. On the working surface of the abrasive paper with a relief working layer, the total area of defects (fusion and non-printing) of the relief layer per 1 mA 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 sandpaper with a width of up to 1250 mm, edges with a width of more than 10 mm with defects are not allowed, with a Sole width of 1250 mm - more than 15 mm.

Note On the working surface of kzrbidkremiisaoi n electroco-| "> d- * g * g" d in -heavy skin erinstoy 6-M40, dotted *. more "s o6ra: k / zlin or blotches protruding above the working surface are not allowed.

(Changed edition, Rev. L I, 2, 3).

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

Table 6

2.9. Strengthen to break the sanding paper depending on: "! paper grades must correspond to the values \u200b\u200bspecified in table. 7.

GOST 6456-82 S. 6

2.10. The coefficient of application of the grinding wheel to the base L "* for sanding 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 polished lath skins must correspond to the values \u200b\u200bspecified * in table. eight.

Table 8

il shchis "-.shas Reductionii iwroc karOnlkrchmshch" vO sh.shfi^myi "sh niKvp-h: ktocioO and type I should be 1.5 7.0: tpna 2 "■ *. 7.0.

(Changed edition. Rev. L & 2).

2.13. The cutting ability of the abrasive skin under the test conditions specified in the mandatory Appendix 2. must be with the values \u200b\u200bspecified in Table. 8a.

T a 6 l I! n l 8a

I .> muhv .p* .NCHIH1■tki;ikk. G
	b71L\|H".R" , "11- ,/ n	s » 1 11 >(1

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

S. 7 GOST 6456 - "2

J. ACCEPTANCE RULES

3.1. In order to control the compliance of the grinding Shl^rkn with the requirements of this mill, exercises should be carried out; control and periodic testing.

3.2. Acceptance control for compliance with the requirements of paragraphs. 1.2, 2.7.1. 2.7.2 l 2.7.3 must be subjected to at least 1% of rolls of sanding paper from the batch, but not less than 3 pieces, log g..:. 1.4; 1.5; 2.12 and 2.13 - 0.1%. but not msnse 3 pcs.

3.1. 3.2. (Changed edition. Rev. .> to 2).

3.2.1. The batch must consist of sanding skins::.", one-Mil.charaKTtpifctics, made in one shift and simultaneously presented for acceptance but one document.

3.3. Gels during acceptance control were found to comply with the requirements of the standard for more than one controlled indicator. then the party is not accepted.

(Changed rslakinya, Rev. No. 2).

3.3.1. If a discrepancy between the fsbovanikm standard for one of the controlled indicators is established, then a second control is carried out on a doubled number of skin rolls.

If there are defects in the re-sampling, the batch is not green-and-white.

(Introduced additionally, Amendment No. 2).

3.4. Periodic tests should be subjected to “production (one of the sizes of rolls), which has passed the acceptance control (according to clause 3.2), for compliance with the requirements of clauses. 2.J and 2 10 0.5%. but not less than 3 pcs. 2.9 and 2.11 0.5% 40 grit sandpaper rolls; S; 3 i.440, but not less than 3 pcs., p. 2.9 - not zee.h types of bases.

(Changed edition, Rev. L "2).

3.5. Periodic tests should be carried out "not | hedgehog" once a year.

(Revised edition, Rev. No. 3).

4. CONTROL AND TEST METHODS

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

4.2. The dimensions and external defects of the working surface of the abrasive skin are measured with a measuring metal ruler according to GOST 427-75 or a measuring metal pwieuv.i g, “/ GOST 7502-89.

4.2 1. The slope angle of the relief is measured by universal similarities of intention or by a special template.

4.3. Uneven skin thickness is measured with a micrometer

GOST Y>L-82 C. 3

type LAC (i with a margin of error of 0.01 im) at a distance of at least 10 mm from the edge of the roll.

(Revised edition, Rev. No. 2).

4 4. The calculation of the coefficient of application of the grinding mater a ia as the basis of A. is given in the mandatory Appendix 1.

4.5. To determine the moisture content of the grinding wheel, three samples with dimensions of 100x100 mm are taken. vgveshnvayug on technical scales with a margin of error of ±0.01 g. Samples of abrasive skins are placed in an oven and dried at a temperature of (100-5) ° C until then. until the difference between two successive weighings does not exceed 0.02 g.

The moisture content of the sandpaper is determined by the difference in masses before to after drying and is calculated as a percentage of the initial 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 K3UJ VNIPASH device by abrasion of the skin on the skin for 2 min tip and a load of 29.4 I.

The test is carried out on two figurative sandpapers with dimensions &> "»> "00 mm and 520X50 mm.

Samples are weighed on technical scales with a tolerance limit of ^ 0.05 g.

Note<| П Н II Я:

1. Osylasmms * I "of the grinding skin is equal to the mass of the hoarse working milk and i-i.iiiui-u."i time interval under given conditions

2. In case of rnechs-to-prnvelsiy wear blunder yurn.yutostsi MVZ; M50 and M40 in the numerator b. "Room corresponding to the numbers 5; A and 3.

(Revised edition, Rev. No. 2).

4.7. Meto! determination of the cutting ability of the abrasive paper is given in mandatory Appendix 2.

4.8. Determination of the tensile strength of the abrasive skin is made according to GOST 13525.1-79, except for paragraphs. 3.1 and 4.1 at ambient temperature. The maximum deviations in the dimensions of the samples for the well should be ± 1.0 mm.

(Changed edition. Rev. L6 2).

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

S. MARKING. PACKAGE. TRANSPORT AND STORAGE

5.1. On the non-working surface of the roll of sandpaper, every (235: 20j mm in the longitudinal direction and every (200 ± 20) mm in the numerical directions) should be applied:

From 9 roc; MS*-SJ

trademark of the manufacturer;

conditional designation (except for the type and indication of the type of layer ragochegs);

batch number.

Notes;

". When using cvecn grinding materials, mark the grade of the main grinding material in conditional terms;

2. As agreed with the consumer.»®»* roll dimensions tolerances*» to: - mow.

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

5.2. Bundle marking: hide 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 should 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. L 3).

5.4. Each roll of sandpaper must be wrapped with a double layer of b \ magic according to GOST 18277-72, GOST 2228-81 or GOST 10127-75.

The roll must be sealed on C1yke. 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: release plate 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. (Deleted, Rev. No. 3).

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

(Introduced additionally, Rev. No. 3).

Sec. 6. (Excluded. Amendment No. 2).

GOST 6456 - 82 S. 10

APPENDIX I O "/ :glchos

CALCULATION OF THE COEFFICIENT OF APPLYING UIL AND FMAT F R IL J1A ON THE BASIS

The coefficient of application of the shlnfmaterial or the base ( / C, - the ratio of the p.! ”Shzai of the base with the applied shlnfchaternal to its o & ceA area ”for: executions I and 3 is calculated by the formula

where a is the width of the relief, mm; t - relief step, mm; execution 2 is calculated using the formula

execution -J is calculated by the formula

(Changed edition, I "m. L I).

attach 2

METHOD FOR DETERMINING THE CUTTING ABILITY OF A GRINDING

Metol Essence

The om-m-t method for a definite mass of sanding of standard-l sanding plexiglass skins during the test.

2. Equipment and materials

2.1. Scheme 'and description of the device type MI-2 - according to GOST 42G-77.

2.S. Sandpaper samples with an outer diameter (!74-fc5> mm and a hole diameter (55±3> mm

2-3. Plates from organic glass brand TOSN ~ according to GOST I7622--72.

2.4. Rubber lining hardness No Shore GO-80.

2.5. Glue grades VF-2 and BF 4 in accordance with GOST 12172-74 or other grades, which ensured the spice of joining plexiglass plates with a grommet gasket.

(Amended glaction, Rev. JA 2).

3. II o d I- o a ka k and s v a k i k>

3 I. Stick the plates on the rubber pads.

3 2. New plates of organic glass must first be rubbed in before the test people until signs of wear appear on the entire working surface and it is true, clean*, remove dust and weigh;, with a limit of tolerance.! errors ±0.0! G.

4. Testing

4.1. Set the test modes indicated in the table

1ln "n. - ochp

Gr" iVip-iCmrbr

	Usg.-yas pvngimp. II

. <. wax во*

(Revised edition, Rev. fft I. 2).

4.2. Set mspgtyvasmyl oPramch "g .:: kf vi-u., ■ I ^ wokki. changing the nl like sandpaper and “after lapping *.

4.3. Fasten the organic glass plates in the holders in the same burning process as during lapping.

4 4. At the end of the tests, release the plates and org.

5. Processing result!) about experienced*

5.1. Cutting capacity (0 g. "mii) is determined by the formula

where m is the mass of the polished organic glass, g; 5- processing time, mim.

GOST t456-aj p. one?

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 No. 735 dated 18.02.E2

3. The term of the first check is 1992.

Inspection frequency - 5 years

4. REPLACE GOST 6456-75

5. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

*’nwp U4I.T.1. "" y * ".™, irch. I.

OSs:kach<«;1? !**Д. !а 2*112 CCI-LI".a

42Ya-77 427-75 2238-"I 3252 RO 3W7-"L 7502 eya 10127-75 1-2172-74 13925.1-79 17S22-72 18277-72 27595-88

i 3: 5 i Appendix 2

Annex 2 i.3; 5.4 0.17

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

7. RE-ISSUE (April 1990) with Amendments M2 1, 2, 3, approved in June 1984, April 1987, July 1989 | IUS 9-84, 8-87, 11-89)

State standard of the 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 symbol for a waterproof abrasive paper in 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 in accordance with 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. The grain composition of grinding materials is 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. four.

Table 4

2.8. The tensile strength of the sanding skin must correspond to the values \u200b\u200bspecified in table. 5.

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

Grain	Grain	Cutting capacity, g/min, not less

(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, sheets 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; eight; 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. Control of dimensions, unevenness of thickness, appearance of the working surface of the sanding paper - 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).

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

1.1. 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


Grain	Width, mm (limit deviation ±3.0)	Length, m (limit deviation ±0.5)

	720; 750; 800; 850; 900; 1000
	1250; 1350; 1400

	720; 750; 800; 850; 900


	1250; 1350; 1400
	720; 750; 800; 850; 900

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


Grain	Width,
	Interval	Previous off	Interval	Previous off

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


Type of abrasive	Grade of sanding material
Normal electrocorundum	15A; 14A; F14A; 13A; F13A
White electrocorundum	25A; 24A; 23A
Alloyed electrocorundum	94A; 93A; 92A; 91A; 91A-M and 92A-M
Zirconium electrocorundum
monocorundum
Green silicon carbide
Black silicon carbide	54C; 53C; 51С
Glass

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


Paper grade	Symbol

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


Paper convention	Grain
	electrocorundum grinding materials	monocorundum	silicon carbide
P2; P3; P4; P5; P7; P8; P9; P10; P11

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 abrasive 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


Grain	Thickness unevenness, mm, no more

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


Paper convention
	longitudinal	transverse

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


Grain	Reduced wear for types

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


Grain	Cutting ability of the skin, g/min, not less than
	electrocorundum	silicon carbide	glass

(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 pcs., clauses 2.9 and 2.11 0.5 % rolls of sanding paper grit 40; eight; 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 skin 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

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 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.


Grain	Clamping force, N	Processing time, min	The presence of blowing during processing
			Without airflow

			with airflow

(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 maximum error 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