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GB/T 33488.2-2017: Test method of pressure equipment of thermoplastics welded for chemicals -- Part 2: Visual examination
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Test method of pressure equipment of thermoplastics welded for chemicals -- Part 2: Visual examination
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GB/T 33488.2-2017
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Basic data | Standard ID | GB/T 33488.2-2017 (GB/T33488.2-2017) | | Description (Translated English) | Test method of pressure equipment of thermoplastics welded for chemicals -- Part 2: Visual examination | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G94 | | Classification of International Standard | 71.120; 59.100 | | Word Count Estimation | 13,187 | | Date of Issue | 2017-02-28 | | Date of Implementation | 2017-09-01 | | Quoted Standard | GB/T 9445; GB 11533; GB/T 20967; GB/T 20968; GB/T 33488.1; JB/T 12530.2 | | Regulation (derived from) | National Standard Announcement No. 4 of 2017 | | 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 general requirements, test methods, results evaluation and test report of the appearance inspection method of plastic welding system for chemical industry. This standard is suitable for the use of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), propylene - butadiene - styrene plastic (ABS), polyvinylidene fluoride (PVDF) (PTFE) and other thermoplastic pipe or sheet, and the use of hot air welding, extrusion welding, hot melt welding and welding process welding pressure vessel and pressure pipe welding joints of the appearance of detection. | GB/T 33488.2-2017: Test method of pressure equipment of thermoplastics welded for chemicals -- Part 2: Visual examination
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Test method of pressure equipments of thermoplastics welded for chemicals - Part 2. Visual examination
ICS 71.120; 59.100
G94
National Standards of People's Republic of China
Test method for pressure - bearing equipment for plastic welding of chemical industry
Part 2. Appearance inspection
Part 2. Visualexamination
2017-02-28 released
2017-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface III
1 Scope 1
2 normative reference document 1
3 Terms and definitions 1
General requirements
4.1 Overview 1
4.2 detectors 2
4.3 Equipment and equipment 2
4.4 Measuring tools and auxiliary materials 2
4.5 Procedure 2
5 detection method 2
5.1 Overview 2
5.2 direct visual inspection 3
5.3 Indirect appearance detection 3
5.4 Transparent appearance detection 3
6 results evaluation 3
7 Test Report 3
Appendix A (informative) Weld gauge 5
Appendix B (informative) Appearance inspection report format 9
Table A.1 Weld gauge 5
Table B.1 plastic welding system pressure equipment welding joint appearance inspection report (VTReport) 9
Foreword
GB/T 33488 "Chemical plastic welding system with pressure equipment inspection method" is divided into four parts.
- Part 1. General;
Part 2. Appearance inspection;
Part 3. Ray detection;
- Part 4. Ultrasonic testing.
This part is part 2 of GB/T 33488.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This section is proposed by the China Petroleum and Chemical Industry Association.
This part is headed by the National Standardization Technical Committee for Nonmetallic Chemical Equipment (SAC/TC162).
This part of the drafting unit. Wenzhou Zhao Fulong Co., Ltd., Dalian City, Boiler and Pressure Vessel Laboratory Research Institute, Guangzhou special pressure equipment testing
Research Institute, Xi'an Plastic Dragon Welding Equipment Co., Ltd., Zhejiang Yongxing Plastic Co., Ltd., Sichuan Special Equipment Inspection and Research Institute, Guangzhou City Star Asia
Plastic Pipeline Co., Ltd., Gu Di Technology Co., Ltd., Youli Holding Group Co., Ltd., Ningbo Special Equipment Inspection and Research Institute, Wenzhou
City Quality and Technical Supervision and Inspection Institute.
The main drafters of this part. Chen Guolong, Yu Shaoping, Li Maodong, Ma Jianping, Hou Liandi, Yang Hu, Lu Danya, Li Xianmei, Lin Huayi, Wang Du,
Hou Xiaomei.
Test method for pressure - bearing equipment for plastic welding of chemical industry
Part 2. Appearance inspection
1 Scope
This part of GB/T 33488 specifies the general requirements, test methods, and knot methods for the appearance inspection of plastic working systems for chemical welding systems
Fruit evaluation and testing report.
This part is suitable for the use of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), acrylonitrile - butadiene - styrene plastic (ABS)
Polyvinylidene fluoride (PVDF) and modified polytetrafluoroethylene (PTFE) and other thermoplastic pipe or sheet, and the use of hot air welding, extrusion welding, hot melt
Welding and welding process of welding pressure vessel and pressure pipe welding joint appearance detection.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 9445 Non - destructive testing personnel qualification and certification
GB 11533 standard logarithmic visual scale
General rules for visual inspection of nondestructive testing GB/T
GB/T 20968 Non-destructive testing Visual inspection Aids The selection of low magnification magnifiers
GB/T 33488.1 Test methods for pressure welding equipment for plastics used in chemical industry - Part 1. General
Non - destructive testing methods for plastic welds - Part 2. Visual inspection
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Direct visual inspection
Do not use visual aids (except for lighting, mirrors, and low magnifiers), a visual inspection with eyes
technology.
3.2
Indirect visual inspection remotevisualexamination
With the help of mirrors, endoscopes, cameras, video systems, robots, and other suitable visual aids,
Visual inspection of the seized parts or regions to detect a visual detection technology.
3.3
Translucent appearance detection translucentvisualexamination
A visual inspection technique for observing the variation of the thickness of the light transmissive laminated material by means of artificial lighting.
4 General requirements
4.1 Overview
The general requirements for appearance inspection shall comply with the relevant provisions of GB/T 33488.1 and GB/T 20967.
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