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To strengthen the safety risk control of major hazard sources of hazardous chemicals and prevent and curb major and especially serious accidents, the Ministry of Emergency Management has revised the mandatory national standard "Technical Specifications for Safety Monitoring of Major Hazard Sources of Hazardous Chemicals" (GB 17681-2024), which will come into effect on June 1, 2025.

Figure/National Standard Technical Specification

China is the world's largest chemical industry producer, with its total chemical output value accounting for 40% of the global total. There are over 7,000 major hazard source enterprises for hazardous chemicals and more than 24,000 major hazard sources, which are characterized by a large number, wide distribution, and frequent occurrence of accidents. According to statistics, since 2011, all 15 major and extremely serious accidents in the chemical industry have occurred in enterprises with major hazards.

In recent years, with the Safety Committee and the Ministry of Emergency Management putting forward a series of new requirements for the safety monitoring of large-scale oil and gas storage bases and major hazard sources of hazardous chemicals, especially the requirements for digitalization, intelligence and the establishment of intelligent safety risk control platforms in chemical industrial parks, The original three national and industry standards, GB17681-1999, AQ 3035-2010 and AQ 3036-2010, which are related to the safety monitoring and early warning of flammable and explosive tank farms and major hazard sources, have been issued and implemented for many years. Some of their provisions can no longer meet the current needs of safety risk prevention and control. Therefore, it is necessary to re-examine the current status of norms, documents and applications, further standardize and optimize the safety risk prevention and control level of major hazard sources, and update the "Technical Specification for Safety Monitoring of Major Hazard Sources of Hazardous Chemicals" GB 17681-2024.

Image source: Internet

Compared with GB 17681-1999, the main technical changes of this specification are as follows:

1. The scope of application of the standard has been revised;

2. Basic requirements have been added;

3. General design requirements have been added;

4. Added monitoring requirements for production units;

5. Added monitoring requirements for storage units;

6. The automatic control requirements for the instrument have been revised.

7. Requirements for television monitoring systems have been added;

8. Added requirements for lightning protection and static electricity prevention;

9. Increase construction requirements;

10. The requirements for line laying have been deleted.

11. The requirements for acceptance spot checks have been revised;

12. Add requirements for operation, maintenance and repair;

13. Alarm management and optimization requirements have been added.

This specification is applicable to the safety monitoring of major hazard sources in new, renovated or expanded hazardous chemicals construction projects of enterprises engaged in the production and operation of hazardous chemicals and chemical enterprises that use hazardous chemicals for production. After the implementation of GB 17681-1999, the "General Technical Specification for Safety Monitoring of Major Hazard Sources of Hazardous Chemicals" (AQ3035-2010) and the "Specification for the Installation of On-site Safety Monitoring Equipment in Tank Farms of Major Hazard Sources of Hazardous Chemicals" (AQ3036-2010) will be subsequently abolished.

The release and implementation of this specification will further improve the standard system for the safety risk control of hazardous chemicals and provide important technical support for effectively controlling major safety risks.