TLV STELS
\tˌiːˌɛlvˈiː stˈɛlz], \tˌiːˌɛlvˈiː stˈɛlz], \t_ˌiː__ˌɛ_l_v_ˈiː s_t_ˈɛ_l_z]\
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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).
By DataStellar Co., Ltd
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.