He mea nui ngā piripiri i hangaia mō ngā poraka raima hauhautanga i roto i te hanganga o ngā pakitara i hangaia mai i ngā rauemi pēnei i ngā pereki onepu raima kua orohia, i ngā pereki kirikiri rānei.

He iti ake te nui o te sima i roto i te sima tāera utu iti, ki te whakatauritea ki ngā hanganga sima tāera paerewa.

He mea rongonui hei Sima Tāera Mahi-Teitei (C2) e ai ki ngā whakaritenga EN12004...

Ko te sima tāera paerewa, e tohua ana ko C1 i runga anō i ngā whakaritenga EN12004, he piripiri tāera sima me ngā tawhā mahi kua tautuhia.

He piripiri tāera kua rite ki te whakamahi, i hangaia hei whakamahi mā te wāhi e whakamahi ana, e whakamahi ana i te polymer dispersion hei āpitihanga.

Ko te tāera keri, he wāhanga nui i ngā wāhanga whakamutunga o ngā mahi tāera pakitara, papa rānei, ka mahi hei whakakī i ngā āputa i waenga i ngā tāera.