GB 5135.21-2025

Automatic sprinkler system—Part 21: Inspector""s test connection

STANDARD published on 31.10.2025

English, Chinese -
electronic design (pdf) (548.80 USD)

The information about the standard:

Designation standards: GB 5135.21-2025
Note: Execute Date: november 2026
Publication date standards: 31.10.2025
Country: Chinese technical standard
Category: Technical standards GB