III. Cov qauv ib puag ncig thiab daim ntawv pov thawj
A. Cov qauv ib puag ncig cuam tshuam rau cov khob ntawv ntsuab uas lwj tau
Cov qauv ib puag ncig rau cov khob ntawv uas lwj tau yog hais txog ntau yam kev cai thiab cov ntsiab cai uas yuav tsum tau ua kom tiav thaum lub sijhawm tsim khoom, siv, thiab kho. Cov qauv no lub hom phiaj yog xyuas kom meej tias cov khob ntawv uas lwj tau yog ib puag ncig zoo thiab ruaj khov. Cov hauv qab no yog qee cov qauv ib puag ncig rau cov khob ntawv uas lwj tau.
1. Qhov chaw ntawm cov pulp. Ntsuab lwj taukhob ntawvyuav tsum siv cov ntawv los ntawm cov hav zoov uas tswj hwm kom ruaj khov lossis tau txais daim ntawv pov thawj FSC (Forest Stewardship Council). Qhov no tuaj yeem ua kom ntseeg tau tias kev tsim cov khob ntawv tsis ua rau siv ntau dhau lossis ua puas tsuaj rau cov peev txheej hav zoov.
2. Kev txwv tsis pub siv cov tshuaj lom neeg. Cov khob ntawv ntsuab uas lwj tau yuav tsum ua raws li cov kev txwv tshuaj lom neeg. Txwv tsis pub siv cov tshuaj lom neeg xws li cov hlau hnyav, cov xim pleev xim, cov tshuaj oxidants, thiab bisphenol A. Qhov no tuaj yeem txo qhov txaus ntshai rau ib puag ncig thiab kev noj qab haus huv ntawm tib neeg.
3. Kev puas tsuaj tau yooj yim. Cov khob ntawv ntsuab uas puas tsuaj tau yooj yim yuav tsum muaj kev puas tsuaj zoo. Cov khob ntawv feem ntau yuav tsum tau puas tsuaj tag nrho hauv ib lub sijhawm. Nws yog qhov zoo tshaj plaws rau cov khob ntawv kom muaj peev xwm ua pov thawj lawv qhov kev puas tsuaj los ntawm kev xeem ntawv pov thawj.
4. Cov pa roj carbon thiab kev siv zog. Cov txheej txheem tsim cov khob ntawv uas lwj tau yuav tsum txo cov pa roj carbon kom tsawg li tsawg tau. Thiab lub zog uas lawv siv yuav tsum los ntawm cov chaw uas rov ua dua tshiab lossis cov chaw uas muaj carbon tsawg.
Lub Koom Haum Thoob Ntiaj Teb rau Kev Txheem (ISO) muab cov lus qhia thiab cov lus qhia rau kev tsim thiab siv cov khob ntawv uas lwj tau. Cov no suav nrog cov kev cai rau cov ntaub ntawv siv hauv cov txheej txheem tsim khoom, lub sijhawm lwj, thiab cov teebmeem lwj. Tib lub sijhawm, cov tebchaws lossis thaj chaw kuj tau tsim cov qauv thiab cov cai ib puag ncig. Cov no suav nrog kev ua haujlwm lwj thiab kev phooj ywg ib puag ncig ntawm cov khob ntawv.
B. Lub Chaw Muab Ntawv Pov Thawj thiab Cov Txheej Txheem Muab Ntawv Pov Thawj
Lub Koom Haum Khob Ntawv Thoob Ntiaj Teb yog ib lub koom haum muaj hwj chim hauv kev lag luam khob ntawv. Lub koom haum no tuaj yeem lees paub cov khoom khob ntawv. Nws cov txheej txheem lees paub suav nrog kev sim khoom siv, kev ntsuam xyuas ecological, thiab kev sim kev puas tsuaj.
Cov Chaw Muab Daim Ntawv Pov Thawj Khoom Ntsuab kuj tseem tuaj yeem muab cov kev pabcuam pov thawj rau cov khob ntawv uas lwj tau. Nws ntsuas thiab lees paub qhov zoo ntawm cov khoom, kev phooj ywg ib puag ncig, thiab lwm yam.
C. Qhov tseem ceeb thiab tus nqi ntawm daim ntawv pov thawj
Ua ntej, kev tau txais daim ntawv pov thawj tuaj yeem txhim kho lub koob npe thiab kev ntseeg siab ntawm lub tuam txhab. Thiab cov neeg siv khoom yuav ntseeg cov khob ntawv ntsuab uas lwj tau uas tau ntawv pov thawj ntau dua. Qhov no muaj txiaj ntsig zoo rau kev txhawb nqa kev lag luam thiab kev muag khoom ntawm cov khoom. Qhov thib ob, daim ntawv pov thawj tuaj yeem coj cov txiaj ntsig sib tw rau cov khoom. Qhov no tuaj yeem ua rau cov tuam txhab sib tw ntau dua hauv kev ua lag luam. Thiab qhov no pab lawv nthuav dav lawv cov feem ntawm kev ua lag luam. Tsis tas li ntawd, daim ntawv pov thawj yuav tsum tau kom cov tuam txhab txhim kho thiab tsim kho tshiab tas li. Qhov no tuaj yeem txhawb kom cov tuam txhab txhim kho cov khoom zoo thiab kev ua haujlwm ib puag ncig.