Muaj 3 hom iav, uas yog:
HomKuv - Borosilicate Iav (tseem hu ua Pyrex)
Hom II - Khob Iav Soda Lime Uas Kho
Hom III - Cov Iav Dej Qab Zib Txiv Qaub los yog Cov Iav Dej Qab Zib Txiv Qaub Silica
HomI
Iav Borosilicate muaj zog heev thiab tuaj yeem tiv taus cua sov zoo tshaj plaws thiab kuj tseem tiv taus tshuaj lom neeg zoo. Nws tuaj yeem siv ua lub thawv kuaj thiab pob rau cov kua qaub, nruab nrab thiab alkaline.
Hom II
Hom iav II yog kho cov iav soda lime uas txhais tau tias nws qhov chaw tuaj yeem kho kom zoo dua nws qhov ruaj khov rau kev tiv thaiv lossis kho kom zoo nkauj. Saidaglass muaj ntau yam kho cov iav soda lime rau kev tso saib, kov lub vijtsam rhiab heev thiab kev tsim kho.
Hom III
Hom iav III yog cov iav soda lime uas muaj cov alkali hlau oxidesNws muaj cov tshuaj lom neeg ruaj khov thiab zoo tagnrho rau kev siv dua vim tias cov iav tuaj yeem yaj dua thiab rov ua dua ntau zaus.
Nws feem ntau yog siv rau cov khoom siv iav, xws li dej haus, khoom noj thiab tshuaj.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-31-2019