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GB/T 25112-2010: Pressure gauge used in welding, cutting and allied processes
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| GB/T 25112-2010 | English | 329 |
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Pressure gauge used in welding, cutting and allied processes
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GB/T 25112-2010
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Basic data | Standard ID | GB/T 25112-2010 (GB/T25112-2010) | | Description (Translated English) | Pressure gauge used in welding, cutting and allied processes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N11 | | Classification of International Standard | 17.100 | | Word Count Estimation | 14,172 | | Date of Issue | 2010-09-02 | | Date of Implementation | 2010-12-01 | | Quoted Standard | GB/T 196; GB/T 2406.2-2009; GB/T 7306.1; GB/T 7306.2; GB/T 7307; GB/T 19764 | | Adopted Standard | ISO 5171-1995, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 4 of 2010 (total 159) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the welding, cutting and allied processes gauge terms and definitions, technical requirements, safety, marking and testing requirements. This standard applies to the pressure reaches 30MPa compressed gas, liquefied gas and acetylene welding, cutting and allied processes Bourdon tube pressure gauge, this standard does not apply to manufacturers of acetylene used during the production of acetylene pressure gauge. | GB/T 25112-2010: Pressure gauge used in welding, cutting and allied processes---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.
Pressure gauge used in welding, cutting and allied processes
ICS 17.100
N11
National Standards of People's Republic of China
Welding, cutting and allied processes gauge
Pressuregaugeusedinwelding, cuttingandaliedprocesses
(ISO 5171.1995, MOD)
Issued on. 2010-09-02
2010-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Pressure 2
4.1 Pressure Unit 2
Limit measuring 4.2 on 2
4.3 Maximum pressure mark 2
5 2 Technical Requirements
5.1 Material 2
5.2 Requirements 3
6 Security 5
7 logo 5
8 Test 6
8.1 Overview 6
8.2 design and manufacturing standards 6
8.3 Accuracy class test 6
8.4 torque (torsion) Test 6
8.5 bending test 6
8.6 Test pressure relief devices (energy release test) 7
8.7 8 Strength Test
8.8 Flame retardancy test 8
Appendix A (informative) This standard and ISO 5171.1995 Differences and technical reasons 9
Reference 10
Figure 1 radial gauge 3
Figure 2 Axial pressure gauge 4
Figure 3 Threaded 4
4 rotation radius 5
5 5 mark oil ban
6 Accuracy class test 6
7 6 torque test
8 7 bending test
Limits on Table 1 Measurement 2
Table 2 Radial Gauge Size 3
Table 3 Axial Gauge Size 4
Table 4 maximum rotation radius R of 5
Table A.1 This standard and ISO 5171.1995 9 List of technical differences and their causes
Foreword
This revised standard adopts ISO 5171.1995 "Welding, cutting and similar processes with a pressure gauge."
Taking into account China's national conditions and the laws of this standard in the use of international standards have been modified, these technical differences identified in a single vertical line
They are involved in terms of margin, and lists the technical differences and their reasons in the list in Appendix A for reference.
For ease of use, this standard also made the following editorial changes.
--- "This International Standard" be replaced by "this standard";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Deleted international standards foreword.
Appendix A of this standard is an informative annex.
The standard proposed by China Machinery Industry Federation.
This standard by the national industrial process measurement and control Standardization Technical Committee (SAC/TC124) centralized.
This standard is drafted by. Xi'an Institute of Industrial Automation Instrumentation.
Participated in the drafting of this standard. Leier Da Instrument Co., Ltd., Ningbo Jiangbei Xingda Welding decompression Factory, Ningbo Long Welding Science and Technology
Co., Ltd., Shanghai Regulator Factory Limited.
The main drafters of this standard. Luo Juan, Huang Shicheng, Liuyao Wu, Wu Weijie, Li Zhenghua.
This standard is the first release.
Welding, cutting and allied processes gauge
1 Scope
This standard specifies the welding, cutting and allied processes gauge of terms and definitions, technical requirements, safety, marking and testing requirements.
This standard applies to 30MPa pressure of the compressed gas, and liquefied petroleum gas and liquefied acetylene welding, cutting and allied processes Bourdon tube pressure
Gauge. This standard does not apply to manufacturers of acetylene pressure gauge acetylene production process used.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 196 common thread basic size (GB/T 196-2003, ISO 724.1993, MOD)
GB/T 2406.2-2009 Plastics - Determination of burning behavior by oxygen index - Part 2 Method. room temperature test (ISO 4589-2.1996,
IDT)
GB/T 7306.1 55 ° sealing pipe threads - Part 1. the inner cylindrical thread and taper external thread (GB/T 7306.1-2000,
eqv ISO 7-1.1994)
GB/T 7306.2 55 ° sealing pipe thread Part 2. internal Taper internal and external threads (GB/T 7306.2-2000,
eqv ISO 7-1.1994)
GB/T 7307 55 ° non-sealing pipe thread (GB/T 7307-2001, eqv ISO 228-1.1994)
GB/T 19764 priority number and priority number of the entire value range of Selection Guide (GB/T 19764-2005, ISO 497. 1973, IDT)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Bourdon tube pressure gauge bourdon-tubepressuregauge
The spring tube deformation, measured pressure by means of a pointer and dial direct instructions.
3.2
Case case
Spring tube accommodating housing member and the transmission mechanism and the like.
3.3
Pressure relief device ventorblowoutdevice
Located in a secure device case or back cover to quickly release the spring after hose rupture due to internal case the accumulated pressure.
3.4
Table glass window
You can dial transparent surface observations.
3.5
Dial dial
Used to identify the scale plate or surface.
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