GB15322.1-2026
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 15322.1-2026 is an upcoming 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 Aug 1, 2027.
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, including industrial-type detectors for petrochemical and manufacturing sites, commercial-type detectors for kitchens and public venues, industrial-and-commercial combined detectors, and pipeline-and-well-type detectors for underground enclosed spaces. It covers the design, manufacture, and testing of these detectors but does not apply to portable or line-type beam detectors, which are addressed in other parts of the GB 15322 series. Manufacturers targeting the Chinese market with any point-type combustible gas detection product must comply with this mandatory standard.
Technical requirements
The standard specifies comprehensive requirements across multiple performance categories. Enclosure and explosion-proof requirements mandate that industrial and pipeline-type detectors obtain explosion-proof certification per GB/T 3836.1, while commercial detectors must meet IP65 ingress protection and pass non-metallic enclosure combustion performance testing. Key component requirements cover power supply configurations (DC ≤48V, AC 220V, or battery), indicator lights with Chinese annotations, display devices, audible alarms, and gas sensors with lifespan indication for commercial types. Alarm performance requirements define alarm set points and measurement ranges for different detector categories. Industrial detectors monitoring 3%LEL–100%LEL must have alarm thresholds within 10%LEL–60%LEL, while commercial detectors require low-limit and high-limit alarm settings. The standard also specifies response time limits (15–60 seconds), orientation performance, high-velocity airflow tolerance, and pre-power alarm capability for commercial detectors. Environmental and durability requirements include electromagnetic compatibility (ESD, RF radiation, fast transients, surges), climatic endurance (high/low temperature, constant and cyclic humidity, salt spray, SO₂ corrosion), and mechanical tolerance (vibration and drop tests). Additionally, the standard introduces new requirements for anti-cooking-oil-fume interference, anti-poisoning performance, anti-aging, long-term stability (28-day continuous operation), and low-concentration CO response for commercial detectors. Detectors must maintain specified alarm accuracy tolerances throughout all environmental and interference tests.
Testing methods
The standard defines 36 test methods using 15 (or 30 for adjustable detectors) samples. Key tests include: alarm action value tests conducted in a calibrated wind tunnel at 0.8 m/s airflow; response time tests at twice the low-limit alarm set point; orientation tests rotating the detector in 90° increments; high-velocity airflow tests at 6 m/s; EMC tests per GB/T 17626 series; climatic endurance tests (high/low temperature operation, humidity, salt spray, SO₂ corrosion); mechanical tests (sine vibration, drop); anti-interference tests using acetic acid, ethanol, hexamethyldisiloxane, hydrogen sulfide, and cooking oil fumes; anti-aging tests with 4-hour gas immersion at 50% of full scale; and long-term stability tests over 28 days. Multi-target gas response testing uses liquid reagent evaporation methods per Appendix F.
FAQs
What products are regulated under GB 15322.1-2026?
GB 15322.1-2026 regulates point-type combustible gas detectors for industrial and commercial use, including industrial-type, commercial-type, industrial-and-commercial combined, and pipeline-and-well-type detectors. It covers detectors monitoring gases such as methane, propane, butane, acetylene, hydrogen, and carbon monoxide. Portable detectors and line-type beam detectors are covered under separate parts of the GB 15322 series.
What are the key changes from GB 15322.1-2019?
The 2026 revision introduces several significant additions, including enclosure and explosion-proof requirements, historical event recording functionality, anti-cooking-oil-fume interference testing, anti-aging performance, low-concentration CO response requirements, salt spray and SO₂ corrosion tests, and a standardized history record reading interface (Appendix D). It also removes fiber-optic sensor classification and detectors with measurement ranges above 100%LEL, and updates alarm set point ranges and communication performance requirements.
Does GB 15322.1-2026 reference international standards?
The standard references several Chinese national standards that align with international IEC standards, particularly GB/T 17626 series for electromagnetic compatibility testing (corresponding to IEC 61000-4 series) and GB/T 3836.1 for explosive atmosphere equipment (corresponding to IEC 60079-0). However, the specific alarm thresholds, environmental test parameters, and interference testing protocols are tailored to Chinese regulatory requirements and may differ from direct ISO or IEC equivalents.
The summary above provides a high-level overview of GB 15322.1-2026. To ensure complete compliance for your combustible gas detectors entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15322.1-2026 today to access all detailed parameters, test conditions, appendices, and compliance procedures needed for your product certification.
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 15322.1-2019 (Current)