1. Dundug bis bu nekk: Ndax weer yu bari yu bari dañu am stabilite chimik bu baax, stabilite thermique ak doole mekanik, nekk na récipient bu baax ci ndox yu melni ataaya, kafe, ak naan ci dundu bis bu nekk. Soo jëfandikoo weer yu bari yu am borositraklis, mën na tax nga am cafka gu bees ak neexaayu naan gi, ci noonu lañuy fexe ba jëfandikukat bi am wérgi-yaram ak kaaraange.
2. Jumtukaayi laboratoire: Li gëna am solo ci weer yu bari yi ci biir labo bi moo tax mu nekk jumtukaay bu am solo ci labo bi. Ci misaal, beaker yi, tube test yi, butéelu reactif yi ak yeneen jumtukaayi jàngat dañu leen di faral di defaree weer yu bari. Jumtukaayi jàngat yi ñu defaree ci mbir mi amna resistance corrosion bu baax, te mën na tax ñu am njariñu jàngat bi.
3. emballage ñam: Ndax weer yu bari yu bari yu am-} yu amul cafka, te amul cafka, ñu koy jëfandikoo bu baax, dañu koy jëfandikoo bu baax ci wàllu ëmbu lekk. Ci misaal, potu pots yu bon, potu jam, butéelu lem ak yeneen récipient yuñ defaree ñam, dañu koy faral di defaree weer yu bari. Mbir mi mën na tax ñam yi ak kaaraange gi ci ñam yi, ba noppi yokk dundu gi ci ñam yi.
4. Liggéeyukaay yu amul fenn: Ci yenn liggéey yu amul fenn, lu ci melni substance chimik ak farmasi, weer yu bari dañu koy jëfandikoo bu baax ndax liggéey bu baax bi. Ci liggéey yooyu, produit yiñ defaree weer yu bari dañu soxla ñu mëna dékku jafe-jafe yi ci environmaa bi, waaye seen liggéey bu dëgër moo am ndam ci liggéey bi.