Cov txiaj ntsig ntawm cov hnab sawv ntsug
1. Lub hnab ntim khoom uas sawv ntawm nws tus kheej muaj kev ua haujlwm zoo heev, cov khoom sib xyaw ua ke muaj zog zoo, tsis yooj yim tawg lossis xau, tsis hnyav, siv cov khoom tsawg dua, thiab yooj yim thauj mus los. Tib lub sijhawm, cov khoom ntim khoom muaj kev ua tau zoo xws li tiv thaiv hluav taws xob, tiv thaiv ultraviolet, thaiv oxygen, tiv thaiv dej noo, thiab yooj yim kaw.
2. Lub hnab sawv ntsug tuaj yeem tso rau ntawm lub txee, uas ua rau qhov zoo nkauj dua, pheej yig thiab pheej yig.
3. Cov pa roj carbon tsawg, zoo rau ib puag ncig, thiab rov ua dua tshiab: Cov ntim khoom yooj ywm xws li cov hnab sawv ntsug siv cov khoom siv polymer tshiab ua cov khoom siv raw, yog li lawv muaj cov txiaj ntsig zoo hauv kev tiv thaiv ib puag ncig thiab tuaj yeem rov ua dua tshiab thiab rov siv dua.
4. Yooj yim thiab ceev, nyob hauv thaj chaw me me: Lub hnab ntim khoom uas muaj zipper sawv ntsug muaj kev luam ntawv zoo nkauj, lub hnab zoo nkauj, me me thiab zoo nkauj, tuaj yeem tais thiab ntsuas tau, tsis nyob hauv thaj chaw twg, thiab yooj yim nqa.
5. Cov hnab sawv ntsug uas muaj kev nyab xeeb thiab txhim khu kev qha tuaj yeem ua kom peb cov khoom muaj kev nyab xeeb thaum lub sijhawm thauj mus los thiab txo cov kev pheej hmoo ntawm kev thauj mus los.