GB/T 33488.1-2017 English PDF

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GB/T 33488.1-2017: Test method of pressure equipment of thermoplastics welded for chemicals -- Part 1: General requirements
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33488.1-2017	159	Add to Cart	3 days	Test method of pressure equipment of thermoplastics welded for chemicals -- Part 1: General requirements	Valid

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Basic data

Standard ID: GB/T 33488.1-2017 (GB/T33488.1-2017)
Description (Translated English): Test method of pressure equipment of thermoplastics welded for chemicals -- Part 1: General requirements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G94
Classification of International Standard: 71.120; 59.100
Word Count Estimation: 8,889
Date of Issue: 2017-02-28
Date of Implementation: 2017-09-01
Quoted Standard: GB/T 5616; GB/T 9445; GB/T 33488.2; GB/T 33488.3; GB/T 33488.4
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 principles of non-destructive testing methods such as appearance detection, ray detection and ultrasonic testing of chemical plastic welding system. This standard is suitable for the use of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), propylene wax - butadiene - styrene plastic (ABS), polyvinylidene fluoride (PVDF) Fluoroethylene (PTFE) and other thermoplastic pipe or plate, and the use of hot air welding, extrusion welding, hot melt welding and welding process welding pressure vessel and pressure pipe welded joints of non-destructive testing.

GB/T 33488.1-2017: Test method of pressure equipment of thermoplastics welded for chemicals -- Part 1: General requirements

---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.
Test method of pressure equipments of thermoplastics welded for chemicals - Part 1. General requirements 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 1. General Part 1. Generalrequirements 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 4 Principle 2 4.1 Overview 2 4.2 Appearance inspection 2 4.3 ray detection 2 4.4 Ultrasonic testing 2 5 institutions and personnel 3 5.1 Detection mechanism 3 5.2 detectors 3 6 process and process card 3 6.1 Overview 3 6.2 General technical procedures 3 6.3 Technology card 4 Reference 5 Table 1 Parameter selection for ray detection 2 Table 2 Selection of parameters for ultrasonic testing Table 3 Non-destructive testing of plastic welds Name and code 3

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 1 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. Youli Holding Group Co., Ltd., the National Plastics Quality Supervision and Inspection Center (Fuzhou), Guangzhou special pressure Equipment Testing Research Institute, Xi'an Plastic Long Welding Equipment Co., Ltd., Hexing Group Co., Ltd., Sichuan Special Equipment Inspection and Research Institute, Guizhou Gas (Group) Co., Ltd., Dalian Boiler and Pressure Vessel Inspection Institute, Ningbo Special Equipment Inspection and Research Institute, Gu Di Technology Co., Ltd. Limited company. This part of the main drafters. Lin Huayi, Zheng Weiyi, Li Maodong, Ma Jianping, Cai Qingming, Yang Hu, Liu Zhi, Li Minghao, Chen Dingyue, Fu Zhimin. Test method for pressure - bearing equipment for plastic welding of chemical industry Part 1. General

1 Scope

This part of GB/T 33488 specifies the appearance inspection, ray detection and ultrasonic testing of pressure-sensitive equipment for plastic welding of chemical industry The general principle of damage detection method. 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 Nondestructive Testing of Welded Joints for Welding Pressure Vessels and Pressure Pipes.

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 5616 Guidelines for non - destructive testing GB/T 9445 Non - destructive testing personnel qualification and certification GB/T 33488.2 Test methods for pressure welding equipment for plastics used in chemical industry - Part 2. Appearance inspection GB/T 33488.3 Test methods for pressure welding equipment for plastics used in chemical industry - Part 3. Radiographic testing GB/T 33488.4 Methods of test for pressure welding equipment for plastics used in chemical industry - Part 4. Ultrasonic testing

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Volume defective volumedefects Plastic welds have three-dimensional defects; the defects are classified according to the three-dimensional shape characteristics, such as pores, slag. 3.2 Area defects areadefects Plastic welds have a two-dimensional or third dimension of a very small defect; the defects are classified by planar shape features such as cracks, Face to face. 3.3 Welded joint weldedjoints A combination of two or more parts made of welding, including plastic welds, fused areas and heat affected zones. 3.4 Plastic welding system pressure equipment equipment pressureequipmentsofthermoplasticswelded The maximum working pressure is greater than or equal to 0.1MPa (gauge pressure), the medium is gas, liquefied gas and the maximum operating temperature is higher than or equal to the standard Boiling point of the liquid, the volume is greater than or equal to 30L and the inner diameter (non-circular cross-section refers to the boundary of the largest geometric size) greater than or equal to 150mm containers, such as PP welding absorption tower; the maximum working pressure greater than or equal to 0.1MPa (gauge pressure), the media for the gas, liquefied gas, ......

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