Definitions. Action level means an airborne concentration of benzene of 0.5 ppm calculated as an 8-hour time-weighted average. Assistant Secretary means the ...

However, the benzene standard also incorporates the "action level" decision logic, where the action level is set at one-half the 8-hr TWA PEL value.

The NIOSH Recommended Exposure Limit (REL) is 0.1 ppm (8-hour time-weighted average concentration) and 1 ppm (15-minute time-weighted average). APF ...

3 окт. 2022 г. · The eight-hour time-weighted average (TWA) OSHA PEL and 15-minute STEL for general industry are 1 ppm [3.19 mg/m3] and 5 ppm [15.95 mg/m3], ...

Occupational Exposure Limits. NIOSH REL: TWA (10-hour): 0.1 ppm; STEL (15-min): 1 ppm. OSHA PEL: TWA (8-hour): 1 ppm; STEL (15-min): 5 ppm. ACGIH TLV: TWA (8- ...

20 февр. 2024 г. · OSHA's permissible exposure limit—PEL—for benzene in the air is 1 part per million, or ppm, averaged over an 8-hour work shift. In addition ...

TWA: 1 ppm 8 hours. OSHA PEL Z2 (United States, 2/2013). AMP: 50 ppm 10 minutes. CEIL: 25 ppm.

24 авг. 2020 г. · The EU-wide 8 hour TWA for benzene is currently set at 1 part per million (ppm), equivalent to a concentration of 3.25mg/m3. Не найдено: pel/ | Нужно включить: pel/

Airborne: The maximum time-weighted average (TWA) exposure limit is 1 part of benzene vapor per million parts of air (1 ppm) for an 8-hour workday and the ...