Cov txheej txheem:
Video: Daim ntawv pov thawj tshuaj lom neeg yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim ntawv lo Kev xav tau
Daim ntawv lo , raws li tau hais tseg hauv HCS, yog ib pab pawg tsim nyog ntawm cov ntaub ntawv sau, luam tawm lossis cov duab nraaj hais txog ib qho tshuaj lom neeg uas tau affixed rau, luam tawm, los yog txuas rau lub thawv tam sim ntawm a tshuaj lom neeg , los yog mus rau lub ntim sab nraud
Ntawm no, chemical Labelling yog dab tsi?
Daim ntawv lo rau kev phom sij tshuaj txheeb xyuas qhov xwm txheej thiab muab cov lus qhia txog kev siv lawv li cas kom nyab xeeb. Lawv pab cov lag luam txheeb xyuas cov kev tswj hwm kev nyab xeeb uas xav tau hauv chaw ua haujlwm, thiab qhia cov neeg ua haujlwm yuav ua li cas thiaj li muaj kev nyab xeeb nrog a tshuaj.
Kuj Paub, lub ntsiab lus ntawm kev phom sij tshuaj lom neeg yog dab tsi? A tshuaj lom neeg yog ib hom kev ua haujlwm phom sij tshwm sim los ntawm raug rau tshuaj hauv chaw ua haujlwm. Kev nphav raug rau tshuaj nyob rau hauv qhov chaw ua hauj lwm yuav ua rau mob hnyav los yog mus sij hawm ntev kev noj qab haus huv. Cov no phom sij tuaj yeem ua rau muaj kev pheej hmoo ntawm lub cev thiab / lossis kev noj qab haus huv.
Ntawm no, dab tsi yog 6 lub ntsiab lus uas yuav tsum muaj nyob rau ntawm daim ntawv lo ntawm cov tshuaj phem?
Raws li OSHA, cov ntawv sau tshuaj yuav tsum muaj 6 yam sib txawv:
- Product Identifier. Feem ntau muab tso rau hauv lub kaum sab laug sab sauv ntawm daim ntawv lo, thiab sib haum nrog Tshooj 1 ntawm Daim Ntawv Qhia Kev Nyab Xeeb.
- Lus Cim.
- Cov Lus Qhia Txog Hazard.
- Cov Lus Qhia Ua Ntej.
- Cov ntaub ntawv muab khoom.
- Daim duab.
Dab tsi yog 2 hom kev phom sij?
Hauv chaw ua haujlwm muaj ob hom kev phom sij : noj qab haus huv phom sij thiab physicochemical phom sij.
Pom zoo:
Koj ua pov thawj li cas cov kab yog sib npaug hauv cov ntawv pov thawj?
Thawj yog yog tias cov ces kaum sib thooj, cov ces kaum uas nyob rau tib lub ces kaum ntawm txhua qhov kev sib tshuam, sib npaug, ces cov kab sib npaug. Qhov thib ob yog yog tias qhov sib txawv sab hauv lub kaum sab xis, cov ces kaum uas nyob rau sab nraud ntawm lub transversal thiab sab hauv cov kab sib npaug, sib npaug, ces cov kab sib npaug
Dab tsi yog tsib yam pov thawj uas koj tuaj yeem siv los txiav txim seb puas muaj tshuaj lom neeg tshwm sim?
Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov xim thiab tsim cov npuas. Lub tsib yam kev hloov ntawm tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim cov roj, tsw hloov, kub hloov
Dab tsi pov thawj siv cov duab ntawm lub dav hlau sib koom ua pov thawj cov khoom geometric?
Cov ntaub ntawv pov thawj uas siv cov duab ntawm lub dav hlau sib koom ua pov thawj geometric zog yog hu ua trigonometric
Dab tsi yog 4 pov thawj ntawm kev hloov tshuaj lom neeg?
Piav plaub hom pov thawj ntawm cov tshuaj tiv thaiv tshuaj. Kev hloov xim, tsim los ntawm precipitate lossis roj, lossis qhov kub thiab txias yog cov pov thawj ntawm cov tshuaj tiv thaiv
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus