Ngā paipa tuimotu Astm a53He mea hanga ki te waro me te rino ngā paipa, ā, he āhua tuturu tōna, he kaha teitei, he ātete hoki ki te waikura, ā, he whānuitia te whakamahinga i roto i te hinu, te ahumahi matū, te mīhini, te rererangi, te rererangi me ētahi atu mara. Ko ōna āhuatanga matua ko ēnei e whai ake nei:
1. Kaha teitei: Nā te tukanga hanga me ngā āhuatanga rauemi o te paipa maitai tui kore, he kaha kume me te kaha tuku teitei o te paipa maitai tui kore waro.
2. Ātete kaha ki te waikura: maitai waropaipa maitai kore-tuituiHe pai te ātete ki te waikura, ā, he pai te ātete ki ētahi matū waikawa kaha, alkali kaha me ētahi atu matū.
3. Tukanga hanga māmā: he tino māmā te tukanga hanga paipa maitai waro-kowiri tira, he iti te utu, he teitei te pai o te hanga.
4. Whānui te whakamahinga: he whānui te whakamahinga o te paipa maitai waro maitai kore utu i roto i te hinu, te ahumahi matū, te mīhini, te rererangi, te rererangi me ētahi atu mara, ko tētahi o ngā rauemi paipa nui.
Wā tuku: Maehe-30-2023