2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Txheej txheem cej luam. Xylene (C8H10) yog cov kua tsis muaj xim, flammable nrog cov ntxhiab tsw qab. raug xylene tuaj yeem ua rau lub qhov muag, qhov ntswg, tawv nqaij, thiab caj pas. Xylene tuaj yeem ua rau mob taub hau, kiv taub hau, tsis meej pem, poob ntawm cov leeg nqaij sib koom ua ke, thiab siv ntau zaus, tuag.
Xylene txaus ntshai ua pa?
Ua pa xylene vapors me me tuaj yeem ua rau mob taub hau, kiv taub hau, tsaug zog, thiab xeev siab. Nrog rau qhov raug mob hnyav dua, xylene tuaj yeemua rau tsaug zog, dawm, plawv dhia tsis xwm yeem, ua tsis taus pa, lossis tuag taus. Xylene vapors ua rau mob me me rau ntawm daim tawv nqaij, qhov muag, thiab lub ntsws.
Yuav ua li cas tiv thaiv kev nyab xeeb thaum ua haujlwm nrog xylene?
Dab tsi yog Cov Khoom Tiv Thaiv Tus Kheej (PPE) xav tau thaum ua haujlwm nrog xylene? Kev Tiv Thaiv Qhov Muag / Lub ntsej muag: Hnav tshuaj tiv thaiv tsom iav. Ib daim ntaub thaiv ntsej muag (nrog looj tsom iav dub) kuj tseem yuav tsim nyog. Kev Tiv Thaiv Daim tawv nqaij: Hnav cov khaub ncaws tiv thaiv tshuaj xws li. hnab looj tes, aprons, khau boots.
Koj puas hnov xylene?
Chemical industries produce xylene Page 2 2 XYLENE 1. Pej xeem kev noj qab haus huv STATEMENT los ntawm roj av. Xylene kuj tshwm sim nyob rau hauv cov roj av thiab cov thee tar thiab yog tsim thaum muaj hluav taws kub hav zoov, rau ib qho me me. Nws yog cov kua uas tsis muaj xim tsis muaj nplaim taws nrog muaj ntxhiab tsw qab.
Xylene muaj tshuaj lom ntau npaum li cas?
ACGIH: Qhov pib txwv tus nqi (TLV) yog 100 ppm qhov nruab nrab tshaj li 8-teevua haujlwm thiab 150 ppm raws li STEL (short-term exposure limit).
Pom zoo:
Puas tsis txuas lub microwave puas txaus ntshai?
Lub tshuab hluav taws xob siab tuaj yeem muab rau koj ua rau tuag taustxawm tias tom qab lub microwave tau muab tshem tawm rau lub hlis. … Cov magnetron hauv microwave tuaj yeem muaj beryllium oxide hauv lawv cov ceramic insulators uas tuaj yeem ua rau tuag taus yog tias nws nkag mus rau hauv lub ntsws.
Qhov twg yog qhov txaus ntshai lossis ntshai?
Ntshai yog ib lo lus siv los piav txog tus neeg lossis tej zaum tus tsiaj uas ntshai lossis txhawj xeeb. Piv txwv li: "Hirantha ntshai dhau mus ua dej dawb kayaking hauv Sri Lanka." Scary (scarey) yog ib lo lus siv los piav txog ib yam dab tsi los yog ib tus neeg ua rau ntshai lossis ntshai.
Thaum twg nyiaj npib txaus ntshai txaus ntshai hauv tebchaws Askiv?
Lub nyiaj npib txaus ntshai tau tshwm sim hauv xyoo 1830, ua rau cov neeg ua haujlwm txawj nyeem ntawv ntau ntxiv thiab ua tau los ntawm kev siv thev naus laus zis hauv kev luam ntawv thiab kev faib tawm. Nws lub hnub tseem ceeb tuaj nyob rau xyoo 1860 thiab 1870, thaum cov phau ntawv no tau sau rau lub teb chaws cov ntawv xov xwm.
Puas muaj dab ib nrab txaus ntshai thiab ntshai?
Tsis muaj kev hloov pauv, tsis muaj kev puas tsuaj, tsis muaj kev cuam tshuam ntawm tib neeg, hauv txhua qib, dhau los ntawm txhua qhov kev paub tsis meej ntawm kev tsim zoo, muaj dab phem ib nrab txaus ntshai thiab ntshai. Scrooge pib rov qab, poob siab.
Puas ntshai tsam txaus ntshai?
Txawm hais tias kev tawm tsam yog ntshai, lawv tsis txaus ntshai. Kev tawm tsam yuav tsis ua rau koj raug mob lub cev, thiab nws tsis zoo li koj yuav tau mus pw hauv tsev kho mob yog tias koj muaj. Koj puas tuaj yeem tuag los ntawm kev tawm tsam?
