Ko ngā muka kohuke he muka i ahu mai i ngā toka kohuke muka, he mea hanga te nuinga mai i ngā momo waikura pērā i te silica, te alumina, te waikura konupora, me ētahi atu. Ko ō rātou pūtake matua ko ngā momo asbestos, pērā i te chrysotile asbestos, te crocidolite, me ētahi atu.

1. Tirohanga Whānui mō te Hua: Ko ngā muka kohuke he muka i ahu mai i ngā toka kohuke muka, he mea hanga te nuinga mai i ngā momo waikura pērā i te hauhā silicon, te waikura konumohe, te waikura konupora, me ētahi atu. Ko ō rātou pūtake matua ko ngā momo asbestos, pērā i te asbestos chrysotile, te crocidolite, me ētahi atu.

2. Āhua: He muka

3. Whakamahinga: He pai te horapa, ā, he pai mō te whakaranu ki ngā momo mīhini whakaranu. Kāore he matūriki poro miro i runga i te mata huri o ngā hua arai parai i hangaia mā te whakamahi i ngā muka huruhuru toka horihori a tō mātou wheketere, ā, he ōrite te āhua o ngā hua, he rite tonu ki te kakano pai. He taputapu motuhake mō te wehewehe i ngā poro para i roto i te tukanga whakaputa, he iti te nui o te poro para.< 3%, i muri i te hanga i ngā papa parai, he iti te haruru i te wā e whakahaerehia ana.

4. Ngā tikanga rokiroki me te kawe: Penapena ki te wāhi maroke, karohia te makuku, karohia te pāmahana tiketike, me te wehe atu i ngā waikawa me ngā kawakore.