CAS number
English substance name
Original name of substance
Minimum annual design use (tons/year)
Details
7782-50-5
Chlorine
氯
180
More
7664-41-7
Ammonia, anhydrous
氨
360
More
68476-85-7
Petroleum gases, liquefied
液化石油气
1800
More
7783-06-4
Hydrogen sulphide
硫化氢
180
More
74-82-8
Methane
甲烷、天然气
1800
More
原油
180000
More
8006-61-9
Gasoline, natural
汽油（含甲醇汽油、乙醇汽油）、石脑油
7300
More
1333-74-0
Hydrogen
氢
180
More
71-43-2
Benzene
苯（含粗苯）
1800
More
75-44-5
Phosgene
碳酰氯
11
More
List of Hazardous Chemicals Whose Subject to Threshold of Permit Use in China（2013）
The Threshold of Permit for Use of Hazardous Chemicals in China（2013） consists of several entries including serial number, chemical name, aliases, minimum annual designed usage (tons/year), and CAS number. It specifies the minimum annual designed usage quantity (tons/year) for 75 hazardous chemicals. For hazardous chemicals requiring a safety usage permit, the usage quantity by the enterprise is determined by taking the larger value between the minimum annual designed usage quantity and the actual usage quantity.