TePEDtiwhikete me teCPRKo te tiwhikete mō ngā paipa maitai tui kore he mea whaimana mō ngā paerewa me ngā hiahia rerekē:

1.Tiwhikete PED (Tohutohu Taputapu Pēhanga):
Rerekētanga: Ko te tiwhikete PED he ture Pākehā e pā ana ki ngā hua pēnei i tetaputapu pēhangame ngā paipa rino kore hononga. Mā tēnei ka whakarite kia tutuki i ēnei taputapu ngā paerewa haumaru me te mahi i te mākete Pākehā.
Horopaki: Ka pā te tiwhikete PED ki ngā taputapu pēhanga me ngā pūnaha paipa i hangaia, i hokona, i kawemai rānei ki te mākete o Ūropi. Mā tēnei ka whakarite kia tutuki i te hua ngā whakaritenga ture i roto i te Rohe Ōhanga o Ūropi.
2.Tiwhikete CPR (Whakahaere Hua Hanga):
Rerekētanga: Ko te tiwhikete CPR tētahi atu ture Pākehā e pā ana kingā hua hanga, tae atu ki ētahi rauemi me ngā wāhanga e whakamahia ana i roto i te hanganga.
Horopaki: Mō ngā paipa rino kore hononga, mēnā ka whakamahia ēnei paipa ki ngā hanganga whare, ki ngā tono rānei e pā ana ki te haumaru o te whare, me tutuki pea i ēnei ngā whakaritenga o te CPR. Mā te tiwhikete CPR ka whakarite te mahi haumaru o te hua i roto i te ao hangahanga.
Hei whakarāpopototanga, e pā ana te tiwhikete PED ki ngā taputapu pēhanga me ngā pūnaha paipa e pā ana, ko te tiwhikete CPR ia e pā ana ki ngā rauemi hanga me ngā wāhanga, tae atu ki ētahi paipa maitai kore hononga mō ngā whakamahinga motuhake. Ko ngā tiwhikete e rua hei whakarite kia tutuki te hua i ngā whakaritenga ture me te haumaru e tika ana i te mākete Pākehā.

Tiwhikete PED (Whakahaunga Taputapu Pēhanga)
He rerekē ngā paerewa e pā ana ki ngā tiwhikete PED me ngā tiwhikete CPR.

E pā ana ngā tiwhikete PED ki ngā taputapu pēhanga me ngā pūnaha paipa e pā ana. Ko ngā paerewa o tēnei paerewa ko ēnei anake, engari kāore e herea ki ēnei anake:

Ngā paerewa raupapa EN 10216 pēnei i te EN10216-1 P235TR1; EN10216-2 P235GH; EN10216-3 P275NL1;

Ngā paerewa raupapa ASTM pēnei iASTM A106 GrBASTM A106 GrC;ASTM A53 GrBASTM A333/A333M-18 Gr6;

EN10210 S235JRH; EN10210 S355JOH; EN10210 S355J2H
- Ka hipokina e ēnei paerewa ngā paipa rino tui kore mō ngā tono pēhanga.

Tiwhikete CPR (Whakahaere Hua Hanga)
E pā ana te tiwhikete CPR ki ngā rauemi me ngā wāhanga hanga. Ko ngā paerewa matua ko ēnei anake, engari kāore e herea ki:

Ngā paerewa raupapa EN 10219 EN10219 S235JRH;EN10219 S275J2H;EN10219 S275JOH;EN10219 S355JOH;EN10219 S355J2H, EN10219 S355K2H;

- E kapi ana ēnei paerewa i ngā whakaritenga mō ngā ngongo kore-konumohe me ngā ngongo angiangi mō ngā kaupapa hanganga.

Nga paerewa raupapa EN 10210 - EN10210 S235JRH;EN10210 S355JOHE ai ki te EN10210 S355J2H, ka hipokina e ēnei paerewa ngā whakaritenga mō ngā ngongo maitai hanganga wera-hanga.

Ngā paerewa raupapa EN 10025 - Ka hipokina e ēnei paerewa ngā tikanga tuku hangarau mō te maitai hanganga kore-koranu kua hurihia-wera.Ngā paerewa raupapa EN 10255

- Ka hipokina e ēnei paerewa ngā whakaritenga mō ngā maitai kore-koranu me ngā maitai koranu mō ngā paipa maitai kore-koranu me ngā paipa whakarewa mō te wai me ētahi atu wai.

Hei whakarāpopototanga, e pā ana te tiwhikete PED ki ngā taputapu pēhanga me ngā pūnaha paipa e pā ana, ko te tiwhikete CPR ia e pā ana ki ngā rauemi hanga me ngā wāhanga, tae atu ki ētahi paipa maitai kore hononga mō ngā tono motuhake. Ko te kaupapa o ngā tiwhikete e rua ko te whakarite kia tutuki ngā hua i ngā whakaritenga ture me te haumaru e tika ana i runga i te mākete Pākehā.