Ko te purenga o te hau para ahumahi e pā ana ki te tukatuka i ngā hau para ahumahi pērā i ngā matūriki puehu, te paoa, te hau kakara, ngā hau paitini me ngā hau kino e puta ana i ngā wāhi ahumahi.
He maha ngā pānga kino o te hau para e tukuna ana e ngā mahi ahumahi ki te taiao me te hauora o te tangata. Me mahi ngā mahi purenga i mua i te tutuki o ngā whakaritenga o ngā paerewa tukunga hau putanga i te hau e tukuna ana. E mōhiotia ana tēnei tukanga ko te purenga hau para.
Mā te tikanga mimiti ka whakamahia te momo mimiti (waro whakahohe, tātari ngota, whakamaroke horoi) hei mimiti i ngā poke i roto i te hau putanga ahumahi, ā, ka tīpakohia te momo mimiti e tika ana mō ngā wāhanga rerekē o te hau putanga. Ina tae te momo mimiti ki te mātotoru, ka tangohia ngā poke, ā, ka whakamahia te hangarau tahunga whakakorikori hei whakakōkī hohonu i ngā mea rauropi ki te hauhā me te wai i roto i te hau para ahumahi, kia tutuki ai te mīhini me ngā taputapu āwhina katoa-i-te-kotahi mō ngā kaupapa horoi.
Ngā hua e pā ana:Waro whakahohe JZ-ACN,JZ-ZMS5 tātari ngota,Kaiwhakamaroke parakore JZ-M