Hāʻule ka pauda ma lalo o ka māhele o nā mea pahū, he ʻāpana o nā mea pōʻino.
Hoʻopili kēia mau mea i nā ʻano mea i ʻike ʻia no ko lākou flammability, pahū, ʻano ʻino, ʻona, a me ka radioactivity. ʻO nā laʻana e pili ana i ka ʻaila, pauda, nā ʻakika a me nā kumu, benzene, naphthalene, celluloid, a me nā peroxides. He mea hikiʻole ke hoʻokōʻia kēia mau lako e like me nā mea e like me ka mea i hoʻopaʻaʻia i kaʻoihana a me ka mālamaʻana e hōʻoia i ka palekana a me ka hoʻokō.