Kev Ntsuas Kev Nyab Xeeb
Cov ntsiab lus tseem ceeb ntawm kev tsom xam suav nrog kev txheeb xyuas cov ntsiab lus ntawm cov hlau hnyav (xws li txhuas, arsenic, mercury, thiab cadmium) thiab cov ntsuas microbiological, kom ntseeg tau tias cov khoom siv raw ua tau raws li cov khoom siv tshuaj pleev ib ce - qib kev nyab xeeb. Tsis tas li ntawd, cov tshuaj pleev xim, cov xim organic, thiab cov khoom siv pearlescent yuav tsum tau soj ntsuam rau qhov muaj peev xwm ua kom khaus thiab ua kom tsis txhob muaj kev phom sij rau qhov muag qhov muag.
Chemical Property Test Standards
Cov no feem ntau suav nrog metrics xws li particle loj faib, fineness, roj cov ntsiab lus, pH nqi, thiab cov ntsiab lus binder. Lub fineness ntawm cov hmoov yuav tsum sib xws los tiv thaiv coarse hais los ntawm compromising lub pleev tag; cov roj-raws li qhov system yuav tsum nyob ruaj khov, tsis muaj oxidation los yog kev hloov hauv tsw; Ntxiv mus, colorants yuav tsum tau uniformly dispersed kom lav cov xim zoo ib yam.
Stability Test Standards
Cov no suav nrog kev ntsuas kub ua haujlwm, tiv thaiv txias, centrifugation, kev vibration, thiab ceev kev laus, tsim los xyuas cov teeb meem xws li stratification, clumping, fading, los yog cov hmoov av ntau dhau. Tsis tas li ntawd, kev ntsuam xyuas txog kev khaws cov hmoov nplej thiab lub lauj kaub - nias kev ncaj ncees yog ua los xyuas kom meej tias cov khoom kawg yog resistant rau crumbling thaum siv, muab ib qho yooj yim xim daim ntawv thov, thiab muab ib tug ruaj khov pleev tag. Lub hom phiaj tseem ceeb ntawm cov qauv kev qhia no yog los lav tias cov khoom yog "kev nyab xeeb, ruaj khov, zoo ib yam, thiab cov neeg siv- phooj ywg."
