安全第 1297 / 1605 题
The permissible exposure limit (PEL) for respirable crystalline silica under the OSHA construction standard is:
a.50 micrograms per cubic meter of air as an 8-hour TWA
b.There is no PEL
c.5 milligrams per cubic meter
d.500 micrograms per cubic meter
解析
The silica PEL is 50 µg/m3 as an 8-hour time-weighted average, with an action level of 25 µg/m3. Exceeding these triggers additional controls and requirements.
法律依据: 29 CFR 1926.1153(b)免费刷完整 1605 道题库 — 无需注册。
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