Video: Dab tsi yog qib siab tshaj plaws rau NFPA pob zeb diamond phom sij?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tus lej Qhov system : NFPA Rating thiab OSHA's Classification Qhov system 0-40-tsawg kawg phom sij 4-feem ntau phom sij 1-41- mob hnyav heev phom sij 4-tsawg kawg phom sij • Cov Hazard Cov naj npawb tsis tas yuav tsum muaj nyob rau ntawm daim ntawv lo tab sis yuav tsum muaj nyob rau hauv SDSs hauv Tshooj 2.
Tsis tas li, dab tsi yog tus lej hnyav tshaj plaws hauv ib ntu ntawm NFPA pob zeb diamond?
Pob zeb diamond tawg rau hauv plaub ntu. Cov nab npawb ntawm peb cov xim muaj xws li ntawm 0 (tsawg kawg muaj kev phom sij txaus ntshai) txog 4 (qhov phom sij hnyav tshaj plaws). Ntu plaub (dawb) yog sab laug thiab tsuas yog siv los qhia txog kev ntsuas hluav taws kub tshwj xeeb / kev phom sij.
Ib sab saum toj no, tus lej txhais li cas ntawm NFPA pob zeb diamond? Lub Tebchaws Hluav taws Koom haum ( NFPA ) tau tsim muaj xim-coded tus lej lub npe hu ua TIAB SA 704 . Lub kaw lus siv cov xim-coded pob zeb diamond nrog plaub quadrants nyob rau hauv uas tus lej yog siv nyob rau hauv lub sab sauv peb quadrants los qhia qhov degree ntawm kev noj qab haus huv phom sij (xiav), flammability phom sij (liab), thiab reactivity phom sij (daj).
Ib yam li ntawd, tej zaum koj yuav nug, qhov kev ntsuas flammability ntawm 1 txhais li cas?
Qib 1 - Cov ntaub ntawv uas yog feem ntau ruaj khov, tab sis ua tawg ntawm qhov kub thiab txias siab. ? Qib 0 – Cov ntaub ntawv uas yog ruaj khov txawm nyob rau hauv raug rau hluav taws . Tshuaj lom neeg kev ntaus nqi nyob rau theem siab tshaj yuav tsum muab rau ib chav yog tshuaj yog tam sim no nyob rau hauv qhov ntau ntawm tsib (5) nkas loos lossis ntau dua.
Plaub xim hauv NFPA pob zeb diamond txhais li cas?
Cov NFPA pob zeb diamond muaj plaub xim -coded teb: xiav, liab, daj, thiab dawb. Cov xim xiav, liab, thiab daj-uas sawv cev rau kev noj qab haus huv phom sij , flammability, thiab reactivity, ntsig txog-siv tus lej ntsuas ntawm 0 mus rau 4. Lub teb dawb yog siv los qhia txog kev phom sij tshwj xeeb.
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