GB6222-2025
Safety specification for gas of industrial enterprises
工业企业煤气安全规范
GB 6222-2025 is a current mandatory Chinese national standard for Safety specification for gas of industrial enterprises. It appears in the Food compliance cluster with a product safety focus and has an implementation date of May 1, 2026.
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 the design, management, operation, maintenance, and emergency response of industrial gas facilities within factory premises. It covers the production, recovery, purification, transmission, storage, and usage of various industrial gases, including producer gas, water gas, blast furnace gas, and converter gas. It is not applicable to facilities using gas as a raw material for producing chemical products like methane or methanol, nor to municipal city gas distribution networks.
Technical requirements
The standard comprehensively specifies safety and technical requirements across the entire lifecycle of industrial gas facilities. It mandates general safety management protocols, requiring dedicated technical personnel, clear equipment numbering, and strict operating procedures for new, expanded, or overhauled facilities. Enterprises must establish specialized gas protection stations and formulate specific emergency response plans. For gas production, recovery, and purification, the standard details specific structural and safety requirements for various furnace types, including blast furnaces, coke ovens, and ferroalloy furnaces. It sets strict criteria for equipment tightness, oxygen content monitoring, and automatic shut-off mechanisms to prevent explosions and leaks. Regarding gas pipelines, the standard outlines requirements for structural integrity, anti-static and lightning protection, and routing. It defines specific minimum horizontal and vertical clearance distances between pipelines and surrounding structures, railways, roads, and power lines. Underground pipelines with a CO content higher than 10% are strictly prohibited from being buried. The standard also covers auxiliary devices such as combustion devices, isolation valves, water seals, and explosion venting devices. It sets specific safety parameters for gas mixing stations, booster stations, and gas holders (both wet and dry types), emphasizing the necessity of interlock protection systems and continuous monitoring.
Testing methods
The standard outlines several critical testing and commissioning procedures. Leakage testing is mandatory for all gas purification facilities and pipelines, utilizing air or nitrogen to verify system integrity before operation. For pipelines, it specifies both pressure testing and leakage rate calculations based on pipe diameter and environmental conditions. Additionally, it requires elevation and leakage tests for gas holders, and continuous monitoring of oxygen and carbon monoxide concentrations during regular operations and maintenance entries.
FAQs
What products and facilities are regulated under GB 6222-2025?
GB 6222-2025 applies to gas facilities within industrial enterprise premises, covering the production, recovery, purification, transmission, storage, and usage of various industrial gases. It does not apply to city gas distribution networks or facilities using gas as a raw material to produce chemical products like methanol or hydrogen.
Are there any significant updates in GB 6222-2025 compared to the 2005 version?
The 2025 version introduces several major updates, including new safety requirements for ferroalloy furnace gas recovery, updated spatial clearance distances for underground gas pipelines, revised anti-static and lightning protection measures, and stricter CO monitoring and personnel entry thresholds for hazardous gas areas.
How does GB 6222-2025 differ from international gas safety standards?
While it shares similarities with international industrial safety guidelines, GB 6222-2025 is a mandatory national standard tailored to Chinese industrial practices and environmental regulations. It references specific Chinese standards (e.g., GB 50016 for fire protection) and mandates strict localized protocols for gas isolation, purging, and emergency response. Compliance with this specific standard is legally required for industrial operations in China.
The summary above provides a high-level overview of GB 6222-2025. To ensure complete compliance for your facilities entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 6222-2025 today to access all detailed parameters, spatial clearance tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- C67
- ICS
- 13.100
- Competent department
- Ministry of Emergency Management
- Technical committee
- National Technical Committee on Work Safety of Standardization Administration of China
Relationships
Replaces:GB 6222-2005