Video: Dab tsi ppm ntawm h2s yog qhov txaus ntshai?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev tuag yog sai, qee zaum tam sim. H2S qib 100 ppm ua thiab siab dua yog txiav txim siab tam sim ntawd txaus ntshai rau lub neej thiab kev noj qab haus huv (IDLH). Dhau li ntawm nws cov khoom tsis zoo ceeb toom, H2S yog li ntawd txaus ntshai vim tias qib uas tuaj yeem tua tau qis dua li ntawm ntau lwm yam tshuaj lom cov pa.
Tom qab ntawd, ntawm dab tsi ppm koj tuaj yeem hnov h2s?
Hydrogen sulfide muaj qis tsw threshold, thiab nws tsw tuaj yeem kuaj pom hauv qab 1 ppm ua . Qhov tsawg kawg nkaus perceptible tsw hais tias yog 0.13 ppm ua . Lub qe lwj tsw yog recognizable mus txog 30 ppm ua . Nws muaj qab zib tsw ntawm 30 ppm ua rau 100 ppm ua.
Ib yam li ntawd, TLV ntawm h2s yog dab tsi? Thaum Lub Ob Hlis 2010, American Conference of Governmental Industrial Hygienists ( ACGIH ®) tau txais ib qho kev txwv tus nqi tshiab ( TLV ®) kev pom zoo rau H2S , txo qis 8-teev TWA rau 1.0 ppm, thiab STEL rau 5.0 ppm. Qhov tshiab TLV ® tau yuam ntau lub tuam txhab kom rov xav txog cov txheej txheem raug txwv thiab teeb tsa lub tswb.
ntawm qib siab npaum li cas h2s suav tias yog qhov txaus ntshai tam sim ntawd rau lub neej thiab kev noj qab haus huv?
Kev noj qab haus huv Cov teebmeem ntawm H2S Exposure Hauv 1995, NIOSH tau hloov kho thiab luam tawm IDLH ( Tam sim no txaus ntshai rau lub neej los yog Kev noj qab haus huv ) tus nqi ntawm 100 ppm. Txawm hais tias feem ntau cov neeg tuaj yeem hnov tsw tsawg heev concentrations ntawm H2S , yog txaus ntshai xav tias tsw muaj lus ceeb toom txaus.
Muaj pes tsawg ppm ntawm h2s yuav tua koj?
Tshaj 500 tam sim poob ntawm kev nco qab. Kev tuag yog sai, qee zaum tam sim. H2S qib 100 ppm thiab siab dua yog suav tias yog tam sim ntawd txaus ntshai rau lub neej thiab kev noj qab haus huv (IDLH). Dhau li ntawm nws cov khoom tsis zoo ceeb toom, H2S yog qhov txaus ntshai heev vim tias qib uas tuaj yeem tua tau qis dua li ntawm ntau lwm cov pa phem.
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