2017-8-14 Purification Technology Edition Daily Question (Fill-in-the-blank)
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**Health standard: allowable concentration of methanol in air (), color of the gas filter canister (). Answer: 50mg/m3, brown. Coalification area purification technology version – 2017’s “My Technical Upgrades” in the coal chemical industry (great rewards available). http://bbs.hcbbs.com/thread-1786290-1-1.html. Registration for chemical engineers – experience-sharing event titled “Learning from Others’ Experiences”. http://bbs.hcbbs.com/thread-1808158-1-1.html
50mg/m3, brown
50mg/m3, brown
**The permissible concentration of methanol in air according to health standards is 50 mg/m3; the color of the gas filter canister is brown.
**The permissible concentration of methanol in air according to health standards is 50 mg/m3; the color of the gas filter canister is brown.