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GB/T 23711.5-2019 (GBT 23711.5-2019)

Chinese standards (related to): 'GB/T 23711.5-2019'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusGoogle Book
GB/T 23711.1-2019English115 Add to Cart 0--3 minutes. Auto immediate delivery. Test method for pressure vessels lined with plastics -- Part 1: Spark testing GB/T 23711.1-2019 Valid GBT 23711.1-2019
GB/T 23711.5-2019English115 Add to Cart 0--3 minutes. Auto immediate delivery. Test method for pressure vessels lined with plastics -- Part 5: Cold-hot cycling inspection GB/T 23711.5-2019 Valid GBT 23711.5-2019
GB/T 23711.1-2009English319 Add to Cart 3 days Spark test methods fluorine plastic lining pressure vessel GB/T 23711.1-2009 Obsolete GBT 23711.1-2009
GB/T 23711.5-2009English319 Add to Cart 3 days Expansion and contraction test method for pressure vessels lined with fluoroplastics GB/T 23711.5-2009 Obsolete GBT 23711.5-2009


   
BASIC DATA
Standard ID GB/T 23711.5-2019 (GB/T23711.5-2019)
Description (Translated English) Test method for pressure vessels lined with plastics -- Part 5: Cold-hot cycling inspection
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G94
Classification of International Standard 71.120; 83.140
Word Count Estimation 6,656
Date of Issue 2019-12-10
Date of Implementation 2020-11-01
Drafting Organization Guangzhou Special Pressure Equipment Inspection and Research Institute, Chengde Precision Testing Machine Co., Ltd., Ningbo Special Equipment Inspection and Research Institute, Dalian Boiler and Pressure Vessel Inspection and Testing Institute Co., Ltd., Wenzhou Zhaofulong Co., Ltd., Tianhua Chemical Machinery and Automation Research Design Institute Co., Ltd., Wenzhou Quality and Technical Supervision and Inspection Institute
Administrative Organization National Standardization Technical Committee of Non-metallic Chemical Equipment (SAC/TC 162)
Proposing organization China Petroleum and Chemical Industry Federation
Issuing agency(ies) State Administration for Market Regulation, National Standardization Administration


GB/T 23711.5-2019: PDF in English (GBT 23711.5-2019)
GB/T 23711.5-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.120;83.140
G 94
Replacing GB/T 23711.5-2009
Test method for pressure vessels lined with plastics -
Part 5: Cold-hot cycling inspection
ISSUED ON: DECEMBER 10, 2019
IMPLEMENTED ON: NOVEMBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Test device ... 5 
4 Sample ... 6 
5 Test method ... 6 
6 Test result judgment ... 7 
7 Test report ... 8 
Appendix A (Informative) Cold-hot cycling test report ... 9 
Foreword
GB/T 23711, Test method for pressure vessels lined with plastics, is divided into
8 parts:
-- Part 1: Spark testing;
-- Part 2: Low-temperature testing;
-- Part 3: High-temperature inspection;
-- Part 4: Negative pressure inspection;
-- Part 5: Cold-hot cycling inspection;
-- Part 6: Anti pressure testing;
-- Part 7: Leak testing;
-- Part 8: High-resistance testing.
This Part is the 5th part of GB/T 23711.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 23711.5-2009, Expansion and contraction test
method for pressure vessels lined with fluoroplastics; compared with GB/T
23711.5-2009, the main technical changes, except editorial changes, are as
follows:
-- In "Scope", add plastic lining materials such as rigid polyvinyl chloride
(PVC-U), chlorinated polyvinyl chloride (PVC-C), polyethylene (PE) (see
Chapter 1);
-- Modify the schematic diagram of the testing machine (see Figure 1, Figure
1 of version 2009);
-- Add requirements for safety protection of the testing machine (see 3.2);
-- Add requirements for the sample dimensions (see Chapter 4, Chapter 4 of
version 2009);
-- Remove requirements for the thermometer and the operating temperature
of the to-be-inspected pressure vessel (see 5.2 of version 2009);
-- Add the heating temperature of plastic lining materials such as PVC-U,
PVC-C and PE (see Table 1, Table 1 of version 2009);
Test method for pressure vessels lined with plastics -
Part 5: Cold-hot cycling inspection
1 Scope
This Part of GB/T 23711 specifies the test device, sample, test method, test
result judgment and test report of the cold-hot cycling inspection of steel
pressure vessels lined with plastics.
This Part applies to the cold-hot cycling inspection of steel pressure vessels
lined with plastics such as rigid polyvinyl chloride (PVC-U), chlorinated polyvinyl
chloride (PVC-C), polyethylene (PE), ethylene-tetrafluoroethylene copolymer
(ETFE), fluorinated ethylene propylene (FEP), perfluoroalkoxy alkanes (PFA),
polytetrafluoroethylene (PTFE), and polyvinylidene difluoride (PVDF), whose
container shell material is steel.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB/T23711.1, Test method for pressure vessels lined with plastics - Part 1:
Spark testing
3 Test device
3.1 The schematic diagram of the cold-hot cycling test machine is shown in
Figure 1. The purpose of the test is to verify the ability of the plastic lining to
withstand sudden cold and sudden heat.
Note: After 20 times of cold-hot cycling, water bubbles that are generated on
the surface of PFA, PTFE, FEP will not affect the performance of the
plastic lining and are not considered to be ineffective.
6.2 Use naked eyes to observe the sample; when there is no failure, perform a
spark testing according to the method that is specified in GB/T 23711.1. If the
spark testing is qualified, determine the cold-hot cycling test of the sample at
the test temperature to be qualified.
7 Test report
7.1 The test report shall include the following:
a) the name of the manufacturer;
b) product name, product batch number, model specifications;
c) plastic lining material name and thickness;
d) standard on which the test is based;
e) testing machine model and heating temperature;
f) thermometer range, indication error, steam pressure;
g) heating and cooling processes description and curves;
h) test result.
7.2 For the format of the test report, see Appendix A.
......