Whakauru Tirotiro Matua
Ko ngā pene ā-hoahoa āpure e mōhiotia ana mō te whakahaere haumaru mā te whakauru i ngā āhuatanga hoahoa pīroiroi. Ko ngā āhuatanga ā-hoahoa āpure he tohu ā-kanohi hoki he ara whakahaumaru hoki, e whakapōuri ai te tinihanga kore whakaaetanga. Ka taea e ia te whakauru i te maha o ngā āhuatanga haumaru, pērā i te āhua iti, ngā āhuatanga hōuako, me ngā taputapu e uru mai ana ki te mārama UV. Ka taea ngā āhuatanga haumaru e uru tōtika ana ki te hoahoa āpure kia kaua e whakaroa i te āhua tohu kanohi. Kei te whakaaetia hoki e te rautaki hanga te whakauru i ngā tohu motuhake ki roto i ngā āhua āpure, e wātea ai te rautaki whai mō te whakauru atu ki ngā taputapu haumaru matihi.