1. O loʻo faʻaaogaina lautele i le afi mumu ma le paʻu siosiomaga kasa e pei o le suauʻu faʻaaogaina, faʻamamaina, vailaʻau vailaʻau, faʻailoga suauʻu i fafo, tane suauʻu, ma isi. E faʻaaogaina foi i nofoaga efu e mumu e pei o alamanuia militeri, taulaga, teuina o saito ma uamea. faiga;
2. Fa'atatau ile Sone 1 ma le Sone 2 ole siosiomaga kesi pāpā;
3. Fa'atatau ile IIA, IIB, IIC si'osi'omaga kasa pa;
4. Fa'atatau ile vaega 21 ma le 22 ole siosiomaga pefu mu;
5. Fa'atatau i kasa corrosive, susū, ma tulaga maualuga puipuiga manaomia;
6. Faʻatatau i le vaega vevela o le T1 ~ T4;
7. Pulea le amataga tuusaʻo, taofi ma agai i luma ma fesuiaʻi o le afi, ma le tele o avega, Puupuu ma lalo o le puipuiga o le voltage.