China Issues Criteria to Determine Hidden Danger of Chemical Accidents
Year:2017 ISSUE:23
Click:339    DateTime:Jan.08,2018
China Issues Criteria to Determine Hidden Danger of Chemical Accidents

On November 14, the State Administration of Work Safety of China released Determination Criteria for Hidden Danger of Major Production Safety Accidents in Enterprises Engaged in Chemicals Especially Hazardous Chemicals (Trial Version).
The following 20 cases are defined as hidden danger that may cause major accidents:
1. Main leaders of the company and persons in charge of production safety are not examined in accordance with relevant laws.
2. Special work staffs have no related certificates.
3. External safety protection distance of equipment related to the government’s highly-supervised hazardous chemical technologies, hazardous chemicals or main sources of danger does not meet national standards.
4. Facilities related to hazardous chemical technologies highly supervised by the government are not equipped with automation control systems and emergency shutdown systems.
5. Emergency shutdown systems are not installed in tank fields for hazardous chemicals (defined as level I or level II sources of danger); safety instrumentation systems are not installed in tank fields related to toxic gas, liquefied gas and poisonous liquid (defined as level I or level II sources of danger).
6. Water injection measures of fully pressurized liquefied hydrocarbon storage tanks fail to meet national standards.
7. Industry players do not use loading arms to fill flammable, explosive, toxic and noxious liquefied gases such as liquefied hydrocarbon, liquefied ammonia and liquefied chlorine.
8. Pipelines for highly toxic gases like phosgene and chlorine are installed in public areas outside chemical parks and industrial parks.
9. Overhead power lines pass through production areas and are in inconformity with national standards.
10. Design of chemical facilities that are in use is not normal.
11. Industry players use technologies or equipment listed in the nation’s elimination catalogue.
12. Detection alarm devices are not installed in places where leakage of flammable and poisonous gases may occur; explosion-proof electrical devices are not installed in places with explosion danger.
13. The side (facing devices with fire risk or explosion danger) of control rooms or rack rooms fails to meet the nation’s criteria regarding prevention of fire and explosion.
14. Chemical production units are not equipped with dual power supply systems, and automatic control systems have no uninterruptible power supply.
15. Safety accessories such as safety valve and rupture disk are not put into use.
16. Industry players do not establish responsibility systems to ensure production safety or check systems to find hidden danger of accidents.
17. Industry players do not make operation regulations and process control indexes.
18. Management systems for special work like entering restricted space are not established or fail to be implemented effectively.
19. New techniques related to hazardous chemicals are put into industrial production directly without lab tests, pilot tests and industrial tests; chemical technologies firstly used in China are not proved to be safe and reliable by related departments; pilot production plans are not made for new facilities; fine chemical enterprises do not conduct safety risk assessment activities in accordance with related requirements.
20. Storage of hazardous chemicals does not meet national standards (i.e. no classification, excess in volumes or varieties, etc.).