Kev ntsuam xyuas cov txiaj ntsig kev xeem yog ua raws li cov txheej txheem nruj. Hais txog lub cev muaj zog, qhov yuam kev calibration yuav tsum tsis pub tshaj ± 5% ntawm lub peev xwm nominal; lub piston zawv zawg tsis kam yuav tsum nyob rau hauv qhov kev teev tseg yam tsis muaj stalling; rab koob puncture quab yuam yuav tsum qis dua qhov txwv kom ntseeg tau tias kev txhaj tshuaj zoo. Cov khoom siv tshuaj xav kom cov ntsiab lus ethylene oxide seem tsawg dua 10 ug / g; lub ultraviolet absorbance ntawm lub wavelength uas tau teev tseg tsis tshaj qhov txwv; thiab tag nrho cov ntsiab lus hnyav hlau ua raws li cov cai ntawm pharmacopoeia.
Cov khoom siv roj ntsha yuav tsum dhau tag nrho cov kev kuaj tsis muaj menyuam, nrog cov kab mob endotoxin cov ntsiab lus qis dua 20 EU / unit; cytotoxicity tests qhia tsis muaj cov tshuaj tiv thaiv cytotoxic; thiab txhua qhov kev xeem biocompatibility yuav tsum ua tau raws li tus qauv yuav tsum tau ua. Kev ua tsis tau raws li ib qho kev qhia ib leeg yog qhov ua tsis tiav ntawm tag nrho cov khoom lag luam, yuav tsum tau tshawb xyuas qhov ua rau thiab kho kom raug. Tsuas yog cov khoom uas ua tau raws li txhua tus qauv yuav tsum tau pom zoo rau kev lag luam tso tawm rau kev siv tshuaj kho mob.