GB/T 23711.8-2019Test method for pressure vessels lined with plastics—Part 8:High-resistance testing (English PDF)

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 8th part of GB/T 23711.

This Part was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This Part of GB/T 23711 specifies the principle, test equipment, sample, test method, test result judgment and test report of the high-resistance testing of steel pressure vessels lined with plastics.

This Part applies to the high-resistance testing 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/T 24343, Electrical equipment of industrial machines - Insulation resistance test specifications

JJG 690-2003, Verification Regulation of High Insulation Resistance Meters

3 Principle

Use the high resistance meter to measure the resistance value of the sample, so as to determine whether there are defects such as leaks on the sample.

4 Test equipment