T/GDCKCJH 003-2019 Active Group standards

T/GDCKCJH 003-2019 Practical metallographic inspection technical guidelines for special pressure equipment

Publish Date: 2020-04-16 Implement Date: 2020-04-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GDCKCJH 003-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Non-destructive testing

Publish Date: 2020-04-16

Implement Date: 2020-04-30

Scope

Scope: This standard specifies the terms and definitions for on-site metallographic examination of pressure-bearing special equipment, as well as requirements for metallographic examiners, related equipment, and on-site metallographic examination. This standard applies to on-site metallographic examination of pressure-bearing special equipment within the scope of the "Special Equipment Catalogue of the People's Republic of China". Main technical content: 1. Scope 2. Normative reference documents 3. Terms and definitions. Considering that some key terms in this standard are not specifically defined in related standards and norms, an explanation of "on-site metallographic examination" is provided. 4. Metallographic examiners. This section stipulates the basic knowledge, continuing education, and qualifications required for on-site metallographic examiners. 5. Related equipment. This section stipulates the requirements for the documentation and calibration of equipment used in on-site metallographic examination. 6. On-site metallographic examination. It specifies the procedures for on-site metallographic examination of pressure-bearing special equipment, preparation before examination, selection of inspection sites, preparation of inspection surfaces, etching of inspection surfaces, observation of metallographic structures, on-site replication or collection of metallographic structure images, evaluation of metallographic structures, and issuance of inspection reports. Appendix A: Use and maintenance of on-site metallographic microscopes Appendix B: Flowchart for on-site metallographic examination of pressure-bearing special equipment Appendix C: Common on-site metallographic chemical etching reagents Appendix D: Common on-site metallographic electrolytic etching reagents