GB15322.3-2019
Combustible gas detectors—Part 3: Portable combustible gas detectors for industrial and commercial use
可燃气体探测器 第3部分：工业及商业用途便携式可燃气体探测器
GB 15322.3-2019 is a current mandatory Chinese national standard for Combustible gas detectors—Part 3: Portable 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 portable combustible gas detectors used in industrial and commercial places for detecting hydrocarbons, ethers, esters, alcohols, carbon monoxide, hydrogen, and other combustible gases or vapors. It covers both continuous working type and single measurement type detectors. It is mandatory for all manufacturers producing portable gas detectors for the Chinese market. Detectors with special performance requirements in industrial and commercial places may also refer to this standard unless otherwise specified by relevant standards.
Technical requirements
The standard classifies detectors based on measurement range (e.g., 3%LEL~100%LEL) and working mode (continuous or single measurement). It mandates strict requirements for appearance, structural integrity, and explosion-proof performance complying with GB 3836.1-2010. Detectors must feature clear audible and visual alarms, concentration display functions, and battery low-voltage indicators. Manufacturers must ensure their devices have clear status indicators and structural anti-detachment measures for sensors. Core performance criteria include precise alarm action values, range indication deviations, and response times. The standard specifies tolerance limits for alarm action values relative to alarm setting values, ensuring accuracy under various conditions. For instance, response times must not exceed 60 seconds for carbon monoxide detectors and 30 seconds for other gases. Accurate concentration display and rapid response are critical compliance factors. The standard also outlines rigorous requirements for electromagnetic compatibility (ESD and RF field immunity), climatic environment tolerance (high temperature, low temperature, constant heat and humidity), and mechanical environment tolerance (vibration and drop tests). Additionally, it introduces specific tests for anti-poisoning performance against gases like hexamethyldisiloxane and hydrogen sulfide, as well as resistance to high-concentration gas shocks and low-concentration operation stability.
Testing methods
The standard mandates a comprehensive suite of tests including alarm action value tests, range indication deviation tests, and response time tests. Environmental and durability assessments feature high/low temperature operation, constant humidity, sinusoidal vibration, and drop tests. Specialized evaluations include high-speed airflow tests, anti-poisoning performance tests (exposure to silicone vapors and hydrogen sulfide), high-concentration gas shock tests, and low-concentration operation tests. Manufacturers must conduct both factory conformity tests and full type tests to verify compliance.
FAQs
What products are regulated under GB 15322.3-2019?
It applies to portable combustible gas detectors used in industrial and commercial places to detect gases such as hydrocarbons, ethers, esters, alcohols, carbon monoxide, and hydrogen. It is mandatory for all manufacturers targeting the Chinese market.
Are there any updates from the previous version of GB 15322.3?
This version merges the requirements of the previous GB 15322.3-2003 and GB 15322.6-2003. Key updates include adding concentration display requirements, introducing anti-poisoning performance and low concentration operation tests, and modifying temperature test conditions.
How does GB 15322.3-2019 handle the detection of gases other than methane, propane, or carbon monoxide?
The standard requires detectors to be tested using methane, propane, or carbon monoxide as the basic test gases. For other target gases, manufacturers must use their claimed target gas or equivalent methods for specific deviation and response time tests.
The summary above provides a high-level overview of GB 15322.3-2019. 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 15322.3-2019 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
Relationships
Replaces:GB 15322.3-2003, GB 15322.6-2003