Kei roto i ō mātau kōpaki ngahere ngatahi, e hanga ana ngā waka hei whakatiki i ngā rerekētanga, ngā pūngao, ā, ngā matū hiko. Ko te motokā e whakatika ana i runga i te mahi tūranga: ko ngā pū e whakarite ana ki ngā tohu pūngao me ngā tohu awhi kaihuka, ko ngā rangitaki hiko e noho ana i roto i te whenua (me te tohu IECEx), ā, ko ngā hanga kōwhai e hono ana ki te whakamahi i te whakapapa hiko. Ko te tinana o te kete i hanga mai i te whakapapa 3mm whakamaru me ngā tohu kore-pūngao, kei reira hoki te tohu ATEX (12 waenganui ahiahi) me ngā tawaha whakamau (kaha <10 ohms). Ko ngā mata o te roanga i whakatakoto ai i runga i te whakapapa kore-hiko (kaha resistivity 10⁶–10⁹ ohms), ā, ko ngā kaiwhakatikihanga i whakatakotoria ai i runga i ngā tawaha kore-kawe hiko. Kei te whakarite ngā waka kore-pūngao i runga i ngā ture EN 13097 me ngā ture NFPA 505, ka pai hei whakatikihanga i ngā rerekētanga o te Rānei 1 Divishen 1. Tuku tonu ki a mātau kaiarahi kore-pūngao mo ngā pakipaki tohu, ngā tikanga whakahoki ā-moments, ā, ngā whakariterite mō ngā momo pūngao ā-wā.