1. Ukuba kukho ukuvuza kwinaliti ye-nitrogen ye-nitrogen okanye uxinzelelo lweoksijini lingaphantsi kwe-18% ngexesha inaliti ye-witrogen, yeka ukusebenza kunye nokuphumeza ecaleni kwendlela yokuphepha intlekele. Abasebenzi kwindawo nganye yogada kufuneka benze umsebenzi omuhle wokulinda icala lomoya.
2. Phambi kwenaliti ye-nitrogen, abaqhubi kunye nogada kufuneka bafundisise ngenyameko amanyathelo ezobuchwephesha kwaye basayisayisayine.