Cov tshuaj ntim cov tshuaj tuaj yeem faib ua iav, yas, roj hmab, hlau, khoom siv, thiab lwm yam ntaub ntawv raws li lawv cov ntaub ntawv. Cov tshuaj iav iav yog ib feem tseem ceeb ntawm cov tshuaj ntim ntaub ntawv, yooj yim xws li cov tshuaj zoo thiab pob tshab tau ua rau muaj kev lag luam zoo heev), ua rau lawv muaj kev lag luam tawm hauv kev lag luam.
Kev faib tawm cov tshuaj iav iav fwj
Cov tshuaj pleev iav iav tau muab cais tawm los ntawm kev tsim khoom thiab lub hom phiaj: pwm fwj, tswj cov iav fwj. Ntawm lawv, molded fwj tuaj yeem faib ua: Txoj kev lis ntshav fwj kom muaj peev xwm ntim tau loj; Moulded txhaj tshuaj hwj rau ntim me maub ntim thiab cov tshuaj fwj rau qhov ncauj ntawm qhov ncauj.
Cov tshuaj fwj tuaj yeem faib ua cov ampoules rau kev txhaj tshuaj me me, pen
Tso cai los ntawm iav muaj kev sib xyaw: borosilicate iav (suav nrog high borosilicate iav, nruab nrab borosilicate iav, thiab qis borosilicate iav), soda txiv qaub iav;
Khaws los ntawm cov xim: tsis muaj xim iav, xim iav (xim av (xim av, xiav, thiab lwm yam).
Qhov sib txawv ntawm cov pwm fwj thiab tswj lub hwj
Raws li kev tsim khoom lag luam, tshuaj fwj iav mas tsuas yog faib ua cov raj mis thiab cov fwj. Moulded fwj yog ua rau cov tshuaj fwj los ntawm cov kua mis los ntawm cov pwm ntim khoom, thaum cov raj ntim ntim nrog cov duab thiab ntim cov nplaim hluav taws xob.
