Tirohanga Whānui: Ko ngā ngongo poiha, hei wāhanga matua o ngā "uaua" o ngā poiha, he mahi nui tā rātou i roto i te pūnaha pūngao me te ahumahi hou. He rite ki te "uaua toto" e kawe ana i te pūngao, e pikau ana i te kawenga taumaha o te kawe i ngā pāpāho pāmahana teitei me te pēhanga teitei hei whakarite i te mahi pumau me te whai hua o te pūnaha poiha. I roto i te mara tono, ko te umanga hiko wera te kaihoko nui rawa atu o ngā ngongo poiha. I roto i ngā tipu hiko wera waro me te hau tuku iho, ko ngā poiha, hei taputapu hurihanga pūngao matua, me nui te maha o ngā ngongo poiha kounga teitei hei hanga i ngā hongere whakaputa mamaoa me te kawe. Kei raro nei, ka arotakehia e te kaituhi te mākete ngongo poiha o nāianei, ā, e titiro whakamua ana ki te mākete ngongo poiha i te tau 2025.
1. Tirohanga Whānui o te Ahumahi
Hei wāhanga matua o ngā taputapu poiha, e whakamahia whānuitia ana ngā ngongo poiha i roto i te mana wera, ngā poiha ahumahi, te whakamahana pokapū me ētahi atu mara. E pā tika ana te kounga me te mahi ki te pai o te hurihanga pūngao me te haumaru mahi.
Ko te umanga hiko wera te kaihoko nui rawa atu o ngā ngongo poiha. E ai ki ngā tatauranga kāore anō kia oti, ka taea e te wae hiko wera tino-tino-whakahirahira miriona-kirowati te whakamahi i ngā mano tāne o ngā ngongo poiha, e kapi ana i ngā wāhanga matua mai i ngā mata whakamahana oumu ki ngā paipa mamaoa.
He wāhi nui anō hoki te mara o ngā pūwero ahumahi mō ngā ngongo pūwero. I roto i ngā rāngai ahumahi maha pērā i te ahumahi matū, te whakarewa, te hanga pepa, me ngā rauemi hanga, kāore e taea te wehe i te tukanga whakaputa mai i te pūngao wera e tukuna ana e te mamaoa. He maha ngā wā ka whakawhirinaki ngā tauhohenga hanga matū ki te āwhina mamaoa me te whakahaere pāmahana tika. Ko ngā hononga whakarewa me te hanga i roto i te ahumahi whakarewa e hiahia ana ki te nui o te mamaoa karori teitei kia pai ai ngā tukanga. Ko te mamaoa me te whakamaroke pepa i roto i ngā mira pepa e whakamahi ana hoki i te mamaoa hei mana matua.
He wāhanga nui hoki ngā ngongo poihā o te pūnaha whakamahana pokapū i ngā rohe raki. I te tere haere o te noho tāone me te whakapai ake i te kounga o te oranga o ngā kainoho, kei te whānui haere tonu te whānuitanga o te whakamahana pokapū.

Ko ngā paerewa whakatinanatanga matua mō ngā ngongo poihau ko:GB/T 5310-2017"Ngā Ngongo Rino Kore-Tuitui mō ngā Poiha Pēhanga-Teitei",GB/T 3087-2008"Ngā Ngongo Rino Kore-Tuitui mō ngā Poiha Pēhanga-Iti me te Waenga", me GB/T 14976-2012 "Ngā Ngongo Rino Kore-Tuitui mō te Kawe Wai" i Haina; kei roto i ngā paerewa o te aoASTM A106/A106M-2019"Ngā Ngongo Rino Waro Kore-Tuitui mō ngā Pāmahana Teitei" (Paerewa o te American Society for Testing and Materials) EN 10216-2 "Ngā Ngongo Rino Kore-Tuitui mō ngā Kaupapa Pēhanga - Ngā Tikanga Tukunga Hangarau - Wāhanga 2: Ngā Ngongo Rino Kore-Koranu me te Koranu me te Mahi Pāmahana Teitei kua Whakapūtātia" (Paerewa Pākehā), me ētahi atu.