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Concept information

Preferred term

Threshold Limit Values  

Type

  • Topical Descriptor

Entry terms

  • Short-Term Exposure Limit
  • TLV-Biological Limit Value
  • TLV Ceiling
  • TLV-Ceiling
  • TLV-Ceilings
  • TLV-Time Weighted Average

Scope note

  • Standards for limiting worker exposure to airborne contaminants. They are the maximum concentration in air at which it is believed that a particular substance will not produce adverse health effects with repeated daily exposure. It can be a time-weighted average (TLV-TWA), a short-term value (TLV-STEL), or an instantaneous value (TLV-Ceiling). They are expressed either as parts per million (ppm) or milligram per cubic meter (mg/m3).

History note

  • 2000; use MAXIMUM ALLOWABLE CONCENTRATION 1976-1999; for TLV use MAXIMUM ALLOWABLE CONCENTRATION 1976-1999

In other languages

URI

http://www.yso.fi/onto/mesh/D020711

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