GB15322.1-2019
Combustible gas detectors—Part 1: Point-type combustible gas detectors for industrial and commercial use
可燃气体探测器 第1部分：工业及商业用途点型可燃气体探测器
GB 15322.1-2019 is a current mandatory Chinese national standard for Combustible gas detectors—Part 1: Point-type combustible gas detectors for industrial and commercial use. It appears in the Construction compliance cluster with a product safety focus and has an implementation date of Nov 1, 2020.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to point-type combustible gas detectors used in industrial and commercial premises for detecting hydrocarbons, ethers, esters, alcohols, carbon monoxide, hydrogen, and other combustible gases or vapors. It is mandatory for all manufacturers producing detectors for these environments. It does not apply to portable or line-type beam combustible gas detectors, which are covered by other parts of the GB 15322 series.
Technical requirements
The standard specifies comprehensive requirements for the classification, performance, and marking of detectors. Detectors are classified by measurement range (e.g., 3%LEL to 100%LEL), working mode (system or independent), and sampling method (free diffusion, aspirated, or fiber optic). Key performance requirements include alarm action values, range indication deviation, and response times under various conditions. The standard mandates that detectors must have clear status indicators (normal, fault, alarm) and specific alarm output interfaces. Manufacturers must ensure detectors meet strict explosion-proof requirements according to GB 3836.1-2010. Additionally, the standard outlines requirements for electromagnetic compatibility (EMC), climate and mechanical environment tolerance, and resistance to gas interference and poisoning. Detectors must maintain accurate alarm action values after exposure to high concentrations of gas, low concentration operation, and long-term stability tests.
Testing methods
The standard details a rigorous testing program, including basic performance tests, alarm action value tests, and response time tests. Environmental tests cover high/low temperature operation, constant damp heat, and vibration. EMC tests include electrostatic discharge, radiated/conducted RF immunity, and surge immunity. Specialized tests evaluate resistance to gas interference, poisoning (using hexamethyldisiloxane and hydrogen sulfide), and high-concentration gas shocks.
FAQs
What products are regulated under GB 15322.1-2019?
It regulates point-type combustible gas detectors designed for industrial and commercial use, including those detecting methane, propane, carbon monoxide, and other combustible gases.
Are there any updates from the previous version of GB 15322.1-2019?
Yes, this version merges the previous GB 15322.1-2003 and GB 15322.4-2003. It introduces new classifications, adds tests for aspirated and system-type detectors (e.g., sampling airflow variation, line transmission performance), and includes new EMC tests like surge immunity.
Does GB 15322.1-2019 specify requirements for detecting gases other than methane, propane, or carbon monoxide?
Yes, for detecting other combustible gases or vapors, the detector must first pass tests using methane, propane, or carbon monoxide as the basic gas, and then undergo range indication deviation and response time tests using the manufacturer's claimed target gas or equivalent methods.
The summary above provides a high-level overview of GB 15322.1-2019. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15322.1-2019 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C81
- ICS
- 13.220.20
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China