CCOHS: Occupational Hygiene - Occupational Exposure Limits
2024年5月10日 · The units of measures for the TLV-TWAs, TLV-STEL and TLV-C are ppm and mg/m 3. The TLVs for aerosols are usually expressed in mg/m 3. The TLVs for gases and vapours are expressed in ppm or mg/m 3. The units of measure for TLV-SL is mg/100 cm 2. For physical hazards, ACGIH defines:
The units of measures for the TLV-TWAs, TLV-STEL and TLV-C are ppm and mg/m. 3. The TLVs for aerosols are usually expressed in mg/m 3. The TLVs for gases and vapours are expressed in ppm or mg/m 3. The units of measure for TLV-SL is mg/100 cm 2. For physical hazards, ACGIH defines: Threshold Limit Value – Time-Weighted Average (TLV-TWA)*: The ...
CCOHS: Trichloroethylene
2024年5月10日 · ACGIH® TLV® - TWA: 10 ppm A2 BEI® ACGIH® TLV® - STEL [C]: 25 ppm A2. Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. STEL = Short-term Exposure Limit. A2 = Suspected human carcinogen. BEI® = Biological Exposure Index.
CCOHS: Chlorine - Canadian Centre for Occupational Health and …
ACGIH® TLV® - TWA : 0.1 ppm A4. ACGIH® TLV® - STEL [C]: 0.4 ppm. Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. STEL = Short-term exposure Limit. C = Ceiling limit. A4 = Not classifiable as a human carcinogen.
CCOHS: Ammonia - Canadian Centre for Occupational Health and …
2024年5月10日 · ACGIH® TLV® - TWA: 25 ppm. ACGIH® TLV® - STEL [C]: 35 ppm. Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. STEL = Short-term Exposure Limit. C = Ceiling limit. Adapted from: 2022 TLVs® and BEIs® - Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices.
CCOHS: Hydrogen Sulfide
2024年5月10日 · ACGIH® TLV® - TWA: 1 ppm. ACGIH® TLV® - STEL [C]: 5 ppm. Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. STEL = Short-term Exposure Limit. C = Ceiling limit. Adapted from: 2022 TLVs® and BEIs® - Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices.
CCOHS: Sulfur Dioxide - Canadian Centre for Occupational Health …
ACGIH® TLV® - STEL [C]: 0.25 ppm A4. Exposure Guideline Comments: TLV® = Threshold Limit Value. STEL = Short-term Exposure Limit. C = Ceiling limit. A4 = Not classifiable as a human carcinogen. Adapted from: 2022 TLVs® and BEIs® - Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices.
CCOHS: Acetone - Canadian Centre for Occupational Health and …
2024年5月10日 · ACGIH® TLV® - TWA: 250 ppm. A4 BEI® ACGIH® TLV® - STEL [C]: 500 ppm. Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. A4 = Not classifiable as a human carcinogen. BEI® = Biological Exposure Index. STEL = Short-term Exposure Limit. C = Ceiling limit.
CCOHS: Benzene
2024年8月14日 · ACGIH® TLV® - TWA: 0.02 ppm Skin A1 BEI® Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. A1 = Confirmed human carcinogen. BEI® = Biological Exposure Index.
CCOHS: Carbon Monoxide
2024年5月10日 · ACGIH® TLV® - TWA: 25 ppm BEI. Exposure Guideline Comments: TLV® = Threshold Limit Value. TWA = Time-Weighted Average. BEI® = Biological Exposure Index. Adapted from: 2022 TLVs® and BEIs® - Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices.