Exposure limits ACGIH

Exposure limits ACGIH TLV TWA 1 ppm for c/sand transisomers (adopted). 

Exposure limits ACGIH TLV TWA and STEL for all isomers except / -hexane are 500 and 1,000 ppm, respectively (adopted). 

The ACGIH TLV-STEL (Threshold Limit Value — Short Term Exposure Limit ACGIH, 2001) is defined as a 15-min TWA exposure which shouldnotbe exceeded at any time during the workday even if the 8-h TWA is within the TLV-TWA. E q)osures above the TLV-TWA up to the STEL should not be longer than 15 min and should not occur more than four times per day. There should be at least 60 min between successive exposures in this range. 

TLV-STEL Threshold Limit Value-short-term exposure limit (ACGIH)... 

Pollutants/Toxic Dispersion Persistent and Bioaccumulative Total (mass persistent + bioaccumulative) (kg) Mass product (kg) Human Health Total (mass of material [for all materials]) (kg) Permissable exposure limit (ACGIH) (ppm) kg/kg... 

ACGIH (American Conference of Governmental Industrial Hygienists) (2003) TLVs and BEIs Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents Biological Exposure Limits. ACGIH Inc., Cincinnati, Ohio. 

A. Ammonia gas. The odor of ammonia is detectable at 3-5 ppm, and persons without protective gear will experience respiratory irritation at 50 ppm and will usually self-evacuate the area. Eye irritation is common at 100 ppm. The workplace recommended exposure limit (ACGIH TLV-TWA) for anhydrous... 

STEL Short-Term Exposure Limit (ACGIH terminology). The airborne concentration of a material to which it is believed that workers can be exposed continuously for a short period of time without suffering from harm. See TLV. 

Exposure limits The OSHA permissible exposure limit, ACGIH Threshold Limit Value, and any other exposure limit used or recommended by the chemical manufacturer, importer, or employer preparing the MSDS, where available. 

Nature of exposure limits. Control limits. Other exposure limits. HSE Guidance Note on Occupationai Exposure Limits, ACGiH Recommendations. 

OSHA Occupational Safety and Health Administration, PEL Permissible Exposure limit, NIOSH National Institute for Occupational Safety and Health, REL Recommended Exposure Limit, ACGIH American Conference of Governmental Industrial Hygienists, TLEThreshold Limit Value... 

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