He ārahi i roto i te mana motuhake, e whakatutuki ana i te whai huatanga pūngao tuatahi o te pūngao hau tīwiri e rua-wāhanga.

Te Whānuitanga o te Tika, te Whakarerekētanga Pēhanga Kore-Taumata: Mā te whakakotahi i te hangarau auau rerekē o te aukume tuturu, ka tutuki te whakarerekētanga tika kore-taumata i roto i te awhe kawenga o te 15-100%, me te whakahaere i ngā rerekētanga pēhanga putanga hau i roto i te ±0.05 pae, e tutuki ai ngā whakaritenga pakari o ngā taputapu tika me te hangahanga teitei mō te pēhanga hau tino pumau.