This document defines the terms and definitions of water spray nozzles of the automatic sprinkler system, specifies the classification and model designation, requirements, inspection rules, instructions for use, packaging, transportation, and storage, and describes the corresponding test methods. This document applies to the design, manufacture, and inspection of water sprays nozzles of the automatic sprinkler system.
Basic Data
Standard ID
GB 5135.3-2025 (GB5135.3-2025)
Description (Translated English)
Automatic sprinkler system - Part 3: Water spray nozzle
Sector / Industry
National Standard
Classification of Chinese Standard
C84
Classification of International Standard
13.220.10
Word Count Estimation
22,223
Date of Issue
2025-10-31
Date of Implementation
2026-11-01
Older Standard (superseded by this standard)
GB 5135.3-2003
Issuing agency(ies)
State Administration for Market Regulation and Standardization Administration of China
