Cov hnab yas ntim khoom feem ntau siv PP thiab PE ua cov khoom siv raw, lawv cov nqi tsis kam yog qhov loj, thiab cov khoom lag luam tsis zoo hauv dej, yog li cov hnab yas ntim tau yooj yim rau hluav taws xob zoo li qub. Thaum ib puag ncig ua haujlwm (qhov chaw) lossis cov khoom muaj nyob hauv cov khoom muaj cov khoom uas muaj lub zog qis qis, nws yog qhov tsis muaj hluav taws xob zoo heev thiab cov xwm txheej tawg tuaj yeem tshwm sim. Yuav kom tsis txhob raug xwm txheej, cov hnab yas tiv thaiv zoo li qub tau tsim thawj zaug nyob txawv teb chaws. Kev tshawb fawb thiab kev txhim kho ntawm cov thawv ntim khoom nyob hauv tsev thiab txawv teb chaws, nrog rau cov txheej txheem cuam tshuam thiab kev sim ntawm cov thawv ntim khoom ntim, tau tshuaj xyuas. Ua ntej xyoo 2002, nyob txawv teb chaws Kev kawm paub txog hluav taws xob zoo li qub ntawm cov thawv ntim yas tau ua tiav, cov txheej txheem sib xws ntawm kev tsim cov thawv ntim yas tiv thaiv zoo li qub tau npaj tseg, thiab kev faib tawm ntawm cov thawv ntim yas tiv thaiv zoo li qub tau tshaj tawm, nrog rau coj mus kuaj cov qauv. Suav cov lag luam nyob rau xyoo 2003 Pib tsim cov khoom ntim yas ntim khoom tiv thaiv zoo li qub raws li cov qauv txawv teb chaws. Tam sim no, twb muaj ntau lub tuam txhab nyob hauv Suav teb uas tuaj yeem tsim cov hnab ntim khoom ntim yas, uas yog C-hom yas ntim lub hnab ntim khoom, tab sis lawv tsis tau ua tiav D nrog lawv tus kheej cov cuab yeej cuab tam txoj cai. Hom bag.rn Lub koom haum European CLC tau tshaj tawm tus txheej txheem xyoo 2003: PD CLC/TR 50404: 2003 (Lub Rau Hli 2003). Thaum ntxov li Tsib Hlis 2002, IEC tau tshaj tawm tus qauv: IEC 61340-4-4, uas tau txhim kho ntxiv tom qab tus qauv no Hloov Kho thiab tso tawm tus qauv tshiab xyoo 2005: IEC61340-4-40: 2005.PD CLC/TR 50404: 2003 (Lub Rau Hli 2003) tus qauv faib cov hnab yas ntim rau hauv A, B, C, thiab D hom, raws li kev ntim khoom yas Lub tshuab hluav taws xob tsis zoo ntawm lub hnab ntim tau txiav txim thiab muab faib ua A, B, C-type bags, thiab D-type lub hnab yuav tsum siv cov roj sib txuas mus cuag lub hnab yas ntim khoom los txiav txim seb nws puas tsim nyog. rn IEC 61340-4-4: 2005 tus qauv: tsim nyog rau kev ua, Txhua lub hnab ntim loj xav kom siv rau hauv qhov chaw tawg thiab tawg qhov chaw uas qhov hluav taws xob qhov tsawg kawg nkaus tshaj li 0.14mmJ thiab them tam sim no tsawg dua 3.0wA.

Cov thawv ntim khoom siv kuj tseem hu ua cov thawv ntim khoom tiv thaiv zoo li qub, uas tuaj yeem faib ua cov thawv ntim khoom ntim thiab cov thawv ntim zoo li qub. Nws ua hluav taws xob los ntawm kev pib hauv av ntawm cov xaim hluav taws xob xaws hauv lub hnab ntim lub cev thiab cov hlua. Nws tuaj yeem tshem tawm cov hluav taws xob zoo li qub thaum lub sijhawm thauj khoom thiab tshem tawm kom tiv thaiv xwm txheej txaus ntshai xws li kev hlawv thiab tawg. Nws yog siv los ntim cov khoom txaus ntshai hauv tshuaj lom neeg, tshuaj thiab lwm yam lag luam. Tsis hais txog ntawm hom ntim cov thawv ntim khoom, nws lub hom phiaj kawg yog tib yam: tshem tawm cov nqi tsim los ntawm kev sib txhuam ntawm lub thawv ntim.
Kev siv lub thawv ntim khoom siv:
Ntau yam khoom siv tshuaj lom neeg yog cov nplaim taws thiab cov khoom phom sij txaus ntshai, kev thauj mus los hnyav heev, thiab tus nqi kim heev. Siv cov thawv ntim khoom siv thiab cov thawv ntim khoom tiv thaiv zoo li qub kom ntim cov tshuaj lom neeg, cov khoom tawg thiab tawg, kom ua tiav cov txiaj ntsig ntawm cov nplaim hluav taws thiab pov thawj tawg, txo qhov muaj peev xwm ua rau muaj kev nyab xeeb, thiab txo nqi kev thauj mus los.