1. Awọnikọyẹ ki o jẹ iṣelọpọ nipasẹ ile-iṣẹ alamọdaju deede ni ibamu pẹlu awọn ipo imọ-ẹrọ ati awọn pato ailewu ti kio, ati pe ọja naa yẹ ki o ni ijẹrisi didara ti olupese, bibẹẹkọ ko gba ọ laaye lati lo. 2. Eook tuntun yẹ ki o tẹriba si idanwo fifuye, ati ṣiṣi ti biok wiwọn ko yẹ ki o kọja 0.25% ti ṣiṣi atilẹba. 3. Lilo lilo, ṣayẹwo boya kio naa ti bajẹ tabi ti ibajẹ pupọ, titele ati idẹ wọ. 4. Awọnikọyẹ ki o ni idanwo lẹẹkan ni ọdun kan. Lakoko idanwo naa, ṣe idanwo apọju ti 1.25 igba gbigba ẹru fun iṣẹju 10, ati ṣayẹwo pẹlu gilasi ti o ye tabi awọn ọna miiran. Ko yẹ ki awọn dojuijako, awọn dojuijako ati ijẹbajẹ to ku. 5. Awọn apakan mẹta ti o lewu yẹ ki o wa ni mimọ pẹlu kerosene. Lo gilasi titobi lati rii boya awọn dojuijako wa. Fun awoìkọ, ṣayẹwo awọn igbo ati awọn pinni fun wọ. 6. Awọn abawọn lori kio ko ni tunše.
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