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GB/T 6092-2021: Squares
Status: Valid GB/T 6092: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6092-2021 | English | 409 |
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4 days [Need to translate]
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Squares
| Valid |
GB/T 6092-2021
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| GB/T 6092-2004 | English | 399 |
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3 days [Need to translate]
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Squares
| Obsolete |
GB/T 6092-2004
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| GB/T 6092-1985 | English | 399 |
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3 days [Need to translate]
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Squares 90 degree
| Obsolete |
GB/T 6092-1985
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PDF similar to GB/T 6092-2021
Basic data | Standard ID | GB/T 6092-2021 (GB/T6092-2021) | | Description (Translated English) | Squares | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J42 | | Word Count Estimation | 22,298 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 6092-2021: Squares---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Squares
ICS 17.040.30
CCSJ42
National Standards of People's Republic of China
Replace GB/T 6092-2004
Square
Released on 2021-05-21
2021-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Type, basic parameters and accuracy level 1
4.1 Accuracy level 1
4.2 Cylindrical square 1
4.3 Rectangular square ruler 2
4.4 Triangular Right Angle Ruler 3
4.5 Knife-edge right angle ruler 4
4.6 Flat square ruler 5
4.7 Wide seat square 6
5 Requirements 7
5.1 Appearance 7
5.2 Material 7
5.3 Measuring surface and base surface 8
5.4 Geometric tolerances 8
5.5 Rigidity 11
6 Inspection conditions 12
7 Inspection method 12
7.1 Appearance 12
7.2 Hardness 12
7.3 Surface roughness 12
7.4 Verticality error 13
7.5 Flatness error between measurement surface and base surface 13
7.6 Straightness error of the measuring surface 13
7.7 Parallelism error on both sides 13
8 Marking and packaging 13
Appendix A (informative) Reference data for physical properties of rock materials 14
Appendix B (informative) The calculation formula of the geometric tolerance value of the square ruler 15
Figure 1 Cylindrical square ruler 2
Figure 2 Rectangular square ruler 3
Figure 3 Triangular Right Angle Ruler 4
Figure 4 Knife-edge right angle ruler 5
Figure 5 Flat-shaped square ruler 6
Figure 6 Wide seat square ruler 7
Figure 7 Rigidity of knife-edge square, flat square and wide seat square 11
Figure 8 Rigidity of non-integral wide-seat square ruler 12
Table 1 Basic parameters of cylindrical square ruler 2
Table 2 Basic parameters of rectangular square ruler 3
Table 3 Basic parameters of rectangular square with knife edge 3
Table 4 Basic parameters of triangle square 4
Table 5 Basic parameters of knife-edge right angle ruler 5
Table 6 Basic parameters of wide-seat knife-edge square ruler 5
Table 7 Basic parameters of flat square and flat square with seat 6
Table 8 Basic parameters of wide seat square ruler 7
Table 9 The materials of the square ruler 8
Table 10 The hardness of the measuring surface of the square ruler 8
Table 11 The surface roughness of the measuring surface, base surface and side surface of the square ruler 8
Table 12 Perpendicularity tolerance, flatness tolerance or straightness tolerance 9
Table 13 Tolerance of perpendicularity of measurement surface A relative to base surface C and measurement surface D relative to base surface B 9
Table 14 Perpendicularity tolerance of the side surface relative to the base surface 10
Table 15 Tolerance of side flatness and tolerance of parallelism on both sides 11
Table 16 Load force Fm 12
Table B.1 The calculation formula of the geometric tolerance value of the square ruler 15
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 6092-2004 "Right Angle Ruler". Compared with GB/T 6092-2004, except for structural adjustments and editorial changes
In addition, the main technical changes are as follows.
a) Deleted the parameters of the square ruler with a measuring length of 40mm (see Table 10~Table 12 in the.2004 edition);
b) The flatness tolerance and straightness tolerance requirements of the base surface have been increased (see 5.4.2, 5.4.3);
c) Deleted the parallelism tolerance requirements of the two base surfaces (5.4.2 of the.2004 edition);
d) Modified the rigidity requirements of the flat square (see 5.5.1, 5.5.1 of the.2004 edition);
e) Added inspection conditions (see Chapter 6);
f) Modified the inspection method of geometric tolerances (see Chapter 7, Chapter 6 of the.2004 edition);
g) Deleted the parallelism tolerance value of the two base planes on the short side (2004 version of Appendix A.1);
h) Added reference data for physical properties of rock materials (see Appendix A);
i) The calculation formulas for the flatness tolerance value and straightness tolerance value of the base surface have been added (see Table B.1).
This document was proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Standardization Technical Committee for Measuring Instruments (SAC/TC132).
This document was drafted by. Jingjiang Measuring Tools Co., Ltd., Chengdu Xincheng Measuring Tools Co., Ltd., Taizhou Metrology and Testing Institute, Qingdao Qianshao Precision
Instrument Co., Ltd., Chinese Academy of Metrology, Suzhou Guoliang Measuring Tool Technology Co., Ltd., Shandong Shanneng Precision Machinery Co., Ltd., Heilongjiang
Provincial Institute of Metrology, Verification and Testing, Chengdu Tool Research Institute Co., Ltd.
The main drafters of this document. Wu Yufei, Chen Xing, Zhang Yixin, Wu Xinfeng, Cui Zhaoxia, Zhu Xiaoping, Zhao Yonghai, Li Zhengzhong, Zhang Haibo,
He Yixian.
The previous versions of this document and the documents replaced are as follows.
---First published in 1985 as GB/T 6092-1985, first revised in.2004;
---This is the second revision.
Square
1 Scope
This document specifies cylindrical squares, rectangular squares, knife-edge rectangular squares, triangle squares, knife-edge-shaped squares, and wide-seat knife-edges.
The terms and definitions, styles and basics of square squares, flat squares, flat squares with seat, and wide-seat squares (collectively referred to as "squares")
Parameters, requirements, inspection conditions, inspection methods, markings and packaging, etc.
This document is applicable to square rulers whose measuring surface length is 50mm~1600mm.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 17164-2008 Product terminology for geometric quantity measuring instruments
3 Terms and definitions
The following terms and definitions defined in GB/T 17164-2008 apply to this document.
3.1
Square
The measuring surface and the base surface are perpendicular to each other. It is a physical instrument used to test the error of right angle, perpendicularity and parallelism.
Note. The square ruler is also called the 90° angle ruler.
4 Type, basic parameters and accuracy grade
4.1 Accuracy level
The accuracy of the square ruler is divided into 00, 0, 1, and 2.
4.2 Cylindrical square
4.2.1 The type of cylindrical square is shown in Figure 1.The figure is for illustration only and does not show the detailed structure.
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