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INTERSTATE STANDARD

MEASURING LINES
METAL

TECHNICAL CONDITIONS

Moscow

Standartinform

INTERSTATE STANDARD

Introduction date 01.01.77

This standard applies to measuring metal rulers with measurement limits up to 3000 mm, with a division value of 1 mm.

The standard does not apply to rulers special purpose.

Section requirements. 1, pp. 2.1 - 2.10; 2.14 and sec. 2b of this standard are mandatory, other requirements are recommended.

1. MAIN PARAMETERS AND DIMENSIONS

1.1. Rulers must be manufactured with the following measurement limits: 150; 300; 500; 1000; 1500; 2000;3000 mm.

Rulers should be made with two scales (Fig. 1), with one scale (Fig. 2), as well as with two scales, the digitization of which is directed in opposite directions (Fig. 3).

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

1.2. The main dimensions of the rulers, strokes and numerical designations must correspond to those indicated in Table. one.

Table 1

Dimensions in mm

(Revised edition, Rev. No. 3).

1.3. The difference in the length of millimeter, half-centimeter and centimeter strokes must be at least 1.5 mm.

1.4. The difference in the length of the strokes of the same name, as well as the height of the numerical designations, should not exceed 0.5 mm.

Example symbol measuring ruler with a measurement limit of 300 mm:

The same, with a measurement limit of 1000 mm with two scales:

2. TECHNICAL REQUIREMENTS

2.1. The beginning of the scale of the ruler should be the end face perpendicular to the longitudinal edge of the ruler. The rulers behind the last centimeter mark of the scale must have at least five additional millimeter divisions. The rounded end of the ruler must have a hanging hole with a diameter of at least 5 mm for rulers with measurement limits of 150, 300 and 500 mm and at least 8 mm for rulers with a measurement limit of 1000 mm or more.

Rulers with a measurement limit of 1000 mm or more with two scales must have a second end face perpendicular to the longitudinal edge of the ruler, and must not have additional millimeter divisions.

2.2. The end face or end faces that serve as the beginning of the ruler must be straight and perpendicular to the longitudinal edge of the ruler. The deviation from perpendicularity should not exceed ± 10¢. The deviation from the straightness of the end face should not exceed 0.04 mm for rulers with measurement limits of 150, 300 and 500 mm and 0.08 mm for rulers with a measurement limit of 1000 mm or more.

2.3. Deviations from the nominal values ​​of the scale length and distances between any stroke and the beginning or end of the scale should not exceed the values ​​specified in Table. 2.

table 2

(Revised edition, Rev. No. 3).

2.4. Deviations from the nominal lengths of the centimeter divisions of the scale of the rulers should not exceed 0.10 mm, and deviations from the nominal values ​​of the lengths of the millimeter divisions of the scale of the rulers should not exceed ± 0.05 mm.

2.5. Each centimeter stroke of the ruler scale must have a numerical designation indicating the distance in centimeters to this stroke from the beginning of the scale.

If there are two scales, the centimeter strokes of both scales are indicated:

One row of numbers for scales by hell. one;

Two rows of numbers, each of which is directed from the beginning of the scale, for scales by features. 3.

(Revised edition, Rev. No. 3).

2.6. The color of strokes and numbers should be black, distinct. The strokes should reach the longitudinal edge of the ruler.

2.7. The rulers must be made of cold-rolled heat-treated steel strip with a polished surface of strength groups 1P and 2P in accordance with GOST 21996.

The straightness of the longitudinal rib - according to GOST 21996.

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

2.8. Gap between surface plate and the plane of the ruler placed on the plate (scale up) should not exceed 0.5 mm for rulers with a scale length of 150, 300, 500 mm; 0.7 - for rulers with a scale length of 1000 mm and 1 - for rulers with a scale length of more than 1000 mm.

(Revised edition, Rev. No. 3).

2.9. The roughness of the end faces on the base length of 0.8 mm - Ra£ 2.5 according to GOST 2789.

2.10. The rulers must have an anti-corrosion galvanic chrome coating in accordance with GOST 9.306.

2.11. On the front surface of the rulers there should be no dents, nicks, cracks, delaminations, deep scratches and signs of corrosion. On the reverse side small shells, longitudinal scratches, risks and impressions from rolls with a depth not exceeding the tolerance for the thickness of the tape are allowed.

2.12. Full average service life - not less than 5 years.

The criterion for the limit state of the rulers is the wear of the scales, leading to non-fulfillment of the requirements of paragraphs. 2.6 and 2.11.

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

2.13. Completeness.

Each batch of rulers must be accompanied by a document certifying the quality of the rulers and their compliance with the requirements of this standard.

The document must contain:

Name of the manufacturer, its location (city);

The number of lines in the batch and their sizes;

Standard designation;

Release date;

Requirements for the operation and storage of rulers.

2.14. Marking.

Each line must include:

The designation of the division length dimension;

Trademark of the manufacturer;

Standard designation;

RF or RF for export rulers.

2.15. Package.

2.15.1. Methods and means for degreasing and preserving rulers - according to GOST 9.014.

Preservation period - 2 years.

2.15.2. When transporting, the rulers should be bundled, wrapped in wrapping paper according to GOST 8273 and packed in a shipping container.

2.13 - 2.15.2.(Introduced additionally, Amendment No. 3).

2a. ACCEPTANCE

2a.1. To check the compliance of the rulers with the requirements of this standard, state tests, acceptance control and periodic tests are carried out.

2a.2. State tests should be carried out in accordance with GOST 8.001 * and GOST 8.383 *.

* In the territory Russian Federation PR 50.2.009-94 apply.

2a1; 2a2. (Revised edition, Rev. No. 2).

2a.3. During acceptance control, it should be checked for compliance with paragraphs. 1.1; 2.5; 2.6; 2.8; 2.10 each line; for compliance with paragraphs. 2.1 - 2.4; 2.7; 2.9 - 3% of the lot. The number of lines presented for acceptance according to one document is taken as a batch. The results of random tests apply to the entire batch.

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

2a.4. Periodic tests are carried out at least once every 3 years. Periodic tests should be subjected to at least five rulers from among those that have passed the acceptance control for compliance with all the requirements of this standard.

If during testing it is found that the rulers comply with all the requirements of this standard, then the results of periodic tests are considered positive.

(Revised edition, Rev. No. 2).

2b. CONTROL METHODS

2b.1. Verification of rulers - according to MI 2024.

2b.2. The impact of climatic environmental factors during transportation is checked in climatic chambers.

Three types of tests are carried out: at a temperature of (-50 ± 3) °С, (+ 50 ± 3) °С and at a humidity of (95 ± 3)% at a temperature of 35 °С.

Exposure in the climatic chamber for each type of test - 2 hours.

After testing, the rulers should not show signs of corrosion, and the deviations from straightness and from the nominal lengths should not exceed the values ​​specified in paragraphs. 2.2 - 2.4; 2.7.

2b1; 2b.2. (Revised edition, Rev. No. 3).

3. TRANSPORT AND STORAGE

Transportation and storage of rulers - in accordance with GOST 13762.

Sec. 3. (Revised edition, Rev. No. 3).

4. MANUFACTURER WARRANTY

4.1. The manufacturer guarantees the compliance of the rulers with the requirements of this standard subject to the conditions of transportation, storage and operation.

Warranty period of operation - 12 months. from the date of putting the lines into operation.

METAL MEASURING LINES
TECHNICAL CONDITIONS
GOST 427-75
STANDARDS PUBLISHING HOUSE
Moscow
STATE STANDARD OF THE UNION OF THE SSR
Introduction date 01.01.77
This standard applies to measuring metal rulers with measurement limits up to 3000 mm, with a division value of 1 mm.
The standard does not apply to special purpose lines.
Section requirements. 1, pp. 2.1 - 2.10; 2.14 and sec. 2b of this standard are mandatory, other requirements are recommended.
(Revised edition, Rev. No. 3).

1. MAIN PARAMETERS AND DIMENSIONS.

2. TECHNICAL REQUIREMENTS.

2a. ACCEPTANCE.

2b. CONTROL METHODS.

3. TRANSPORT AND STORAGE.

4. MANUFACTURER WARRANTY.

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

1.2. The main dimensions of the rulers, strokes and numerical designations must correspond to those indicated in Table. one .

Table 1

Dimensions in mm

1.3. The difference in the length of millimeter, half-centimeter and centimeter strokes must be at least 1.5 mm.

1.4. The difference in the length of the strokes of the same name, as well as the height of the numerical designations, should not exceed 0.5 mm.

An example of a symbol for a measuring ruler with a measurement limit of 300 mm:

Ruler - 300 GOST 427-75

The same, with a measurement limit of 1000 mm with two scales:

Ruler - 1000 d GOST 427-75

(Changed edition, Rev. N 2).

2. Technical requirements

2.1. The beginning of the scale of the ruler should be the end face perpendicular to the longitudinal edge of the ruler. The rulers behind the last centimeter mark of the scale must have at least five additional millimeter divisions. The rounded end of the ruler must have a hanging hole with a diameter of at least 5 mm for rulers with measurement limits of 150, 300 and 500 mm and at least 8 mm for rulers with a measurement limit of 1000 mm or more.

Rulers with a measurement limit of 1000 mm or more with two scales must have a second end face perpendicular to the longitudinal edge of the ruler, and must not have additional millimeter divisions.

2.2. The end face or end faces that serve as the beginning of the ruler must be straight and perpendicular to the longitudinal edge of the ruler. The deviation from perpendicularity should not exceed . The deviation from the straightness of the end face should not exceed 0.04 mm for rulers with measurement limits of 150, 300 and 500 mm and 0.08 mm for rulers with a measurement limit of 1000 mm or more.

2.3. Deviations from the nominal values ​​of the scale length and distances between any stroke and the beginning or end of the scale should not exceed the values ​​specified in Table. 2.

table 2

(Changed edition, Rev. N 3).

2.4. Deviations from the nominal values ​​of the lengths of the centimeter divisions of the scale of the rulers should not exceed 0.10 mm, and deviations from the nominal values ​​of the lengths of the millimeter divisions of the scale of the rulers should not exceed mm.

2.5. Each centimeter stroke of the ruler scale must have a numerical designation indicating the distance in centimeters to this stroke from the beginning of the scale.

If there are two scales, the centimeter strokes of both scales are indicated:

one row of numbers for scales according to hell. one ;

two rows of numbers, each of which is directed from the beginning of the scale, for scales by hell. 3 .

(Changed edition, Rev. N 3).

2.6. The color of strokes and numbers should be black, distinct. The strokes should reach the longitudinal edge of the ruler.

2.7. The rulers must be made of cold-rolled heat-treated steel strip with a polished surface of strength groups 1P and 2P in accordance with GOST 21996.

The straightness of the longitudinal rib - according to GOST 21996.

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

2.8. The gap between the calibration plate and the plane of the ruler placed on the plate (scale up) should not exceed 0.5 mm for rulers with a scale length of 150, 300, 500 mm; 0.7 - for rulers with a scale length of 1000 mm and 1 - for rulers with a scale length of more than 1000 mm.

(Changed edition, Rev. N 3).

2.11. On the front surface of the rulers there should be no dents, nicks, cracks, delaminations, deep scratches and signs of corrosion. On the reverse side, small shells, longitudinal scratches, risks and imprints from rolls with a depth not exceeding the tolerance for the thickness of the tape are allowed.

2.12. Full average service life - not less than 5 years.

The criterion for the limit state of the rulers is the wear of the scales, leading to non-fulfillment of the requirements of paragraphs. 2.6 and 2.11.

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

2.13. Completeness

Each batch of rulers must be accompanied by a document certifying the quality of the rulers and their compliance with the requirements of this standard.

The document must contain:

name of the manufacturer, its location (city);

the number of lines in the batch and their sizes;

standard designation;

release date;

requirements for the operation and storage of rulers.

2.14. Marking

Each line must include:

designation of the division length dimension;

trademark of the manufacturer;

standard designation;

RF or RF for export rulers.

2.15. Package

2.15.1. Methods and means for degreasing and preserving rulers - according to GOST 9.014. Preservation period - 2 years.

2.15.2. When transporting, the rulers should be bundled, wrapped in wrapping paper according to GOST 8273 and packed in a shipping container.

2.13-2.15.2. (Introduced additionally, Rev. N 3).

2a. Acceptance

2a.1. To check the compliance of the rulers with the requirements of this standard, state tests, acceptance control and periodic tests are carried out.

2a1; 2a2. (Changed edition, Rev. N 2).

2a.3. During acceptance control, it should be checked for compliance with paragraphs. 1.1; 2.5; 2.6; 2.8; 2.10 each line; for compliance with paragraphs. 2.1-2.4; 2.7-2.9 - 3% of the party. The number of lines presented for acceptance according to one document is taken as a batch. The results of random tests apply to the entire batch.

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

2a.4. Periodic tests are carried out at least once every 3 years. Periodic tests should be subjected to at least five rulers from among those that have passed the acceptance control for compliance with all the requirements of this standard.

This standard applies to measuring metal rulers with measurement limits up to 3000 mm, with a division value of 1 mm. The standard does not apply to special purpose lines. Section requirements. 1, pp. 2.1-2.10; 2.14 and sec. 2b of this standard are mandatory, other requirements are recommended.

STATE STANDARD OF THE UNION OF THE SSR

METAL MEASURING LINES

TECHNICAL CONDITIONS

GOST 427-75

PUBLISHING STANDARDS

Moscow

STATE STANDARD OF THE UNION OF THE SSR

Introduction date 01.01.77

This standard applies to measuring metal rulers with measurement limits up to 3000 mm, with a division value of 1 mm.

The standard does not apply to special purpose lines.

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

1.2. The main dimensions of the rulers, strokes and numerical designations must correspond to those indicated in Table. one.

Table 1

Dimensions in mm

(Revised edition, Rev. No. 3).

1.3. The difference in the length of millimeter, half-centimeter and centimeter strokes must be at least 1.5 mm.

1.4. The difference in the length of the strokes of the same name, as well as the height of the numerical designations, should not exceed 0.5 mm.

An example of a symbol for a measuring ruler with a measurement limit of 300 mm:

Ruler - 300 GOST 427-75

The same, with a measurement limit of 1000 mm with two scales:

Ruler - 1000 d GOST 427-75

(Changed edition, Rev. No. 2).

2. TECHNICAL REQUIREMENTS.

Two rows of numbers, each of which is directed from the beginning of the scale, for scales along.

(Changed edition, Rev. No. 3).

2b1; 2b.2. (Revised edition, Rev. No. 3).

3. TRANSPORT AND STORAGE.

Transportation and storage of rulers - according to GOST 13762-86.

Sec. 3. (Revised edition, Rev. No. 3).

4. MANUFACTURER WARRANTY.

4.1. The manufacturer guarantees that the rulers comply with the requirements of this standard subject to the conditions of transportation, storage and operation.

Warranty period of operation - 12 months. from the date of putting the lines into operation.

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

INFORMATION DATA

1. APPROVED AND PUT INTO EFFECT by the Decree of the State Committee of Standards of the Council of Ministers of the USSR dated 10.24.75 No. 2690.

2. REPLACE GOST 427-56.

3. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS.

4. The limitation of the validity period was removed by the Decree of the State Standard of 05.10.92 No. 1298.

5. REPUBLICATION (March 1994) with Amendments No. 1, 2. 3, approved in December 1981, November 1985, October 1992 (IUS 4-82, 2-86, 12-92).

STATE STANDARD OF THE UNION OF THE SSR

METAL MEASURING LINES

TECHNICAL CONDITIONS

GOST 427-75

STANDARDS PUBLISHING HOUSE

Moscow

STATE STANDARD OF THE UNION OF THE SSR

Introduction date 01.01.77

This standard applies to measuring metal rulers with measurement limits up to 3000 mm, with a division value of 1 mm.

The standard does not apply to special purpose lines.

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

1.2. The main dimensions of the rulers, strokes and numerical designations must correspond to those indicated in Table. one.

Table 1

Dimensions in mm

(Revised edition, Rev. No. 3).

1.3. The difference in the length of millimeter, half-centimeter and centimeter strokes must be at least 1.5 mm.

1.4. The difference in the length of the strokes of the same name, as well as the height of the numerical designations, should not exceed 0.5 mm.

An example of a symbol for a measuring ruler with a measurement limit of 300 mm:

Ruler - 300 GOST 427-75

The same, with a measurement limit of 1000 mm with two scales:

Ruler - 1000 d GOST 427-75

(Revised edition, Rev. No. 2).

2. TECHNICAL REQUIREMENTS.

Two rows of numbers, each of which is directed from the beginning of the scale, for scales along.

(Revised edition, Rev. No. 3).

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

2.13. Completeness.

Each batch of rulers must be accompanied by a document certifying the quality of the rulers and their compliance with the requirements of this standard.

The document must contain:

Name of the manufacturer, its location (city);

The number of lines in the batch and their sizes;

Standard designation;

Release date;

Requirements for the operation and storage of rulers.

2b1; 2b.2. (Revised edition, Rev. No. 3).

3. TRANSPORT AND STORAGE.

Transportation and storage of rulers - in accordance with GOST 13762-86.

Sec. 3. (Revised edition, Rev. No. 3).

4. MANUFACTURER WARRANTY.

4.1. The manufacturer guarantees the compliance of the rulers with the requirements of this standard subject to the conditions of transportation, storage and operation.

Warranty period of operation - 12 months. from the date of putting the lines into operation.

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

INFORMATION DATA

1. APPROVED AND PUT INTO EFFECT by the Decree of the State Committee of Standards of the Council of Ministers of the USSR dated 10.24.75 No. 2690.

2. REPLACE GOST 427-56.

3. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS.

4. The limitation of the validity period was removed by the Decree of the State Standard of 05.10.92 No. 1298.

5. REPUBLICATION (March 1994) with Amendments No. 1, 2. 3, approved in December 1981, November 1985, October 1992 (IUS 4-82, 2-86, 12-92).