Ntaub hoob nab yog siv rau kev ntxuav tu tom qab mus siv tsev plob tas, thaum lwm qhov chaw hauv lub cev xws li ntsej muag thiab tes yog tag nrho cov ntaub siv lub ntsej muag, yog li qhov kov tseem ceeb dua. Cov khoom lag luam ntawm lub ntsej muag cov ntaub so ntswg yog GB / T20808-2006" Daim ntawv cov ntaub so ntswg (nrog rau cov ntaub so ntswg ntub)", uas tau tsim nrog siv cov qauv khoom noj; thiab cov khoom lag luam tus qauv ntawm cov ntaub hoob nab yog GB20810-2006" Ntaub hoob nab (nrog rau cov ntaub hoob nab)" ;. Ob txoj kev huv huv tau ua raws li GB15979" Cov Qauv Hauv Tshuaj rau Cov Khoom Siv Tsis Tau Pov Tseg" ;.
Feem ntau, cov neeg siv khoom tsis tuaj yeem sib txawv ntawm daim ntawv tso quav thiab daim ntawv ntsej muag. Cia peb tham me ntsis ntxiv feem ntau. Lub thawv ntsej muag, ntawv so tes, ntawv so tes, ntawv so ntswg, tshem tawm cov hnab ntim khoom ntim ntawm lub ntsej muag (cov yooj yim tsis yooj yim tshaj plaws) yog daim ntawv ntsej muag, ntawv yob, ntawv so hauv tsev thiab ntawv yob loj yog daim ntawv tso quav. Qhov yooj yim ntawm kev txheeb xyuas yog saib ntawm tus qauv huv huv sab nraum qab ntawm pob lossis saib ntawm daim ntawv lo. Raws li txoj cai tshiab hauv tebchaws, cov ntaub hoob nab yuav tsum tau sau nrog" tso zis tso quav" ;. Yuav luag txhua tus neeg tsim khoom loj muaj daim ntawv qhia me me. Saib kom zoo. Yog tsis yog, koj tuaj yeem xa mus rau tus lej kuaj mob tus lej. Txog kev nyiam huv, tsuas yog ntaub so ntswg uas tuaj yeem so koj lub qhov ncauj, nws yog qhov zoo tshaj kom tsis txhob so koj lub qhov ncauj, suav nrog phuam ntawv hauv tsev so. Lub ntsej muag zoo ntawm lub ntsej muag yuav tsum yog kev nyiam huv, yoog raws, thiab tsis yooj yim kom poob tawm. Yog tias nws yog kev huv, nws yuav tsum tau sim nrog cov cuab yeej tshwj xeeb. Feem ntau, cov qauv kev nyab xeeb ntawm cov hom nto moo muaj ntau. Seb qhov chipping hnyav heev tuaj yeem txheeb xyuas visually. Kev hloov pauv tau qhia tau qhov muaj peev xwm ntawm daim ntawv phuam kom ncab rau qee qhov tsis muaj tawg.