TLV CEILING
\tˌiːˌɛlvˈiː sˈiːlɪŋ], \tˌiːˌɛlvˈiː sˈiːlɪŋ], \t_ˌiː__ˌɛ_l_v_ˈiː s_ˈiː_l_ɪ_ŋ]\
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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
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hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.