T/ZZB 2399-2021
Pipe assembly for air-conditioning and refrigeration equipment (English Version)
- Standard No.
- T/ZZB 2399-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 2399-2021
- Scope
- This document stipulates the basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments for piping components for air conditioning and refrigeration equipment. This document is applicable to piping fittings that use R22, R134a, R404A, R407C, R410A, R32, and R290 as refrigerants and are mainly made of copper or brass. Pipe fittings whose medium is other refrigerants can be used as a reference.
T/ZZB 2399-2021 history
- 2021 T/ZZB 2399-2021 Pipe assembly for air-conditioning and refrigeration equipment
