Ko te rerekētanga i waenga i te whakapūmau konupūmā konutea me te whakapūmau tote mata hiato:

Ko te whakapūmau konupūmā konutea me te whakapūmau tote mata hiato e pā ana ki ngā whakapūmau wera PVC, e whai wāhi ana ki te pumau wera i roto i te hanga hua PVC. Ko te rerekētanga i waenga i te rua koia tēnei:
E tutuki ana i ngā whakaū wera konupūmā konutea ngā whakaritenga taiao, ā, e whakamahia whānuitia ana i tēnei wā. Ko ōna āhuatanga ko ēnei āhuatanga e whai ake nei:
1. Ko te āhuatanga tino nui o ngā whakapūmau konupūmā konutea ko tōna whakamahinga i roto i ngā whakatakotoranga hua mārama, me ngā whakatakotoranga hua mātotoru hoki i roto i ngā rauemi hanga matū, ā, he kaha te whakamahinga.
2. He iti iho te utu i tō te organotin.
3. He pai te hototahi me te taunga ki ngā mea whakau mata, tine, cadmium, me te antimony, ā, kāore he parahanga whanariki. He pai mō ngā kaihanga kua whakamahi kē i ngā mea whakau tote mata hei whakakapi i ngā hua kore-paitini, ā, he pai hoki mō te taiao.
4. Ko tētahi atu painga nui o ngā whakapūmau konupūmā konutea ko tōna ātete pai ki te huarere, ā, ko ngā hua e hangaia ana me ngā whakapūmau hiato konupūmā konutea whai tohu e kore e huri ke te tae.
Kua heke haere te whakamahinga o ngā mea whakaū tote mata nā te paitini. Ko ōna āhuatanga penei:
1. Paitini.
2. Kāore e taea te whakamahi mō ngā hua mārama.
3. He pai te ārai hiko me te ātete ki te huarere;
4. Utu iti;
5. He pai te mahi tukatuka e tika ana mō ngā momo tukanga;