Te whakamātautau wai kohua o ngā papa hope silicone: he taahiraa matua ki te aromatawai i te kounga me te pakari
I te mākete o te ao i ēnei rā, he tino paingia ngā hua silicone nā ō rātou āhuatanga ahurei me te whānuitanga o ngā whakamahinga. Hei hua silicone hou, ko te tirotiro kounga ongā papa hope siliconeHe mea tino nui. Hei tikanga whakamātautau māmā, whai hua hoki, ka taea e te whakamātautau wai kohua te āwhina i a tātou ki te mārama ki te mahi a ngā papa hope silicone i roto i ngā taiao pāmahana teitei, ā, ka tautoko hoki i ngā raraunga matua mō te aromatawai kounga hua.

1. He kupu whakataki ki ngā papa hope silicone

Ko ngā papa hope silicone he momo papa i hangaia ki te rauemi silicone kounga teitei. Ko te nuinga o ēnei hei whakanui ake i te teitei o te papa, hei hanga i te piko ātaahua o te papa o ngā wāhine, hei hanga i te papa papatahi kia porotaka, kia ataahua, ā, ka taea te whakaata i te āhua porotaka tūturu ina noho, ina tū, ina hikoi. He ngohengohe, he whakamarie, he pai te ngāwari me te pakari o te rauemi, engari he rerekē te mahi a ngā papa hope silicone o ngā āhuatanga rerekē i te whakamahinga tūturu, nō reira me whai whakamātautau pakari kia pai ai te mahi me te haumaru.

2. Te kaupapa o te whakamātautau wai kohua

He tikanga matarohia te whakamātautau wai kohua hei aromatawai i te pakari me te pumau o ngā rauemi. Ko te nuinga o te wā ka whakatauira i te whakamahinga o ngā papa hope silicone i roto i ngā taiao pāmahana teitei hei kite i ngā huringa ā-tinana me te matū ka puta i raro i ngā āhuatanga pāmahana teitei, tae atu ki ēnei āhuatanga e whai ake nei:
(I) Ngā panonitanga o ngā āhuatanga ā-tinana
Te pumau o ngā āhuatanga: Mātakihia ngā panonitanga o ngā āhuatanga o ngā papa hope silicone i mua atu, ā, i muri mai i te whakamātautau wai kohua, kia mōhio ai mēnā ka whānui, ka whakaiti, ka rerekē rānei i raro i ngā āhuatanga pāmahana teitei. He mea nui tēnei kia mau tonu ai te pai o te noho me te mahi a ngā papa hope silicone i te wā e whakamahia ana mō te wā roa.
Huringa pakeke: Whakamātauria te huringa pakeke o ngā papa hope silicone i muri i te maimoatanga pāmahana teitei. He tohu nui te pakeke hei ine i te ngawari me te ngāwari o ngā rauemi silicone. Mena ka nui te rerekētanga o te pakeke, ka pā pea ki te whakamarie o te kaiwhakamahi me te roa o te ora o te hua.
Te Huringa Āhua: Tirohia mēnā he ōrite te tae o te mata o te papa hope silicone, mēnā kei te memeha, kei te rerekē te tae, kei te mirumiru, kei te pakaru, me ētahi atu. Ehara i te mea ko te ataahua o te hua anake te pānga o ēnei hapa āhua, engari tera pea he tohu mō te pakaru, te kore pumau rānei o te hanganga o roto o te rauemi.
(II) Aromatawai pumau matū
Whakamātautau hekenga rauemi: Mā te whakamātautau wai kohua, tirohia mēnā ka heke ngā matū kino (pērā i ngā konganuku taumaha, ngā mea hanga kirihou, me ētahi atu) kei roto pea i te papa hope silicone ki roto i te wai. He mea nui tēnei hei whakarite i te haumaru o te hua, inā koa ka roa te wā e pā ana te papa hope silicone ki te kiri tangata, hei ārai i ngā kino pea ki te hauora o te tangata.
Aromatawai tauhohenga matū: mātakitaki i te pumau matū o ngā rauemi silicone i roto i te taiao wai pāmahana teitei, ka aromatawai mēnā ka tauhohe matū ki te wai hei whakaputa i ngā matū kino ki te tinana tangata, ka heke rānei te mahi a te rauemi.

3. Ngā paerewa me te pūtake mō te whakamātautau kohua wai

I tēnei wā, mō te whakamātautau wai kohua o ngā hua silicone, ahakoa kāore he paerewa ā-ao mō ngā papa hope silicone, ka taea te tirotiro i ētahi paerewa whakamātautau silicone whānui me ngā whakaritenga ahumahi e tika ana, pērā i te GB/T 34709-2017 "Ngā Tikanga Whakamātautau Whānui mō te Silicone", ISO 10993 "Aromatawai Koiora o ngā Pūrere Hauora" me te FDA (US Food and Drug Administration) mō ngā rauemi silicone pa ki te kai. Ka whakaratohia e ēnei paerewa ngā mātāpono aratohu taketake me ngā anga tikanga mō ngā whakamātautau wai kohua hei whakarite i te āhua pūtaiao o te tukanga whakamātautau me te pono o ngā hua.

4. Ngā taahiraa motuhake o te whakamātautau wai kohua

(I) Te whakarite i mua i te whakamātautau
Kōwhiringa tauira: Tīpakohia matapōkeretia ētahi tauira māngai mai i te puranga kotahi o ngā hua papa hope silicone kia tino kapi ai te rahi, te āhua, te tae me ngā āhuatanga rauemi o ngā tauira i te whānuitanga noa o ngā hua. I taua wā anō, tuhia ngā mōhiohio taketake pēnei i te taumaha tīmatanga, te rahi, te pakeke, me ētahi atu o ia tauira hei tātari whakataurite ki ngā raraunga i muri i te whakamātautau.
Te horoi me te whakamaroke: Horoia ngā tauira papa hope silicone kua tīpakohia ki te wai parakore, ki te hopi horoi ngawari rānei hei tango i te puehu, te hinu me ētahi atu poke i runga i te mata, kātahi ka murua kia maroke ki te kakahu ngohengohe, whakamaroke rānei ki te wāhi hauhautanga kia kore ai he toenga makuku i runga i te mata o te tauira kia kore ai e pā ki te tika o ngā hua whakamātautau.
Te whakarite taputapu whakamātautau: Kōwhiria he ipu whakamātautau e tika ana, pērā i te kapu karāhe, te kohua kowiri tira, me ētahi atu. Me nui te ipu hei whakauru i te tauira papa hope silicone, ā, me rumaki katoa te tauira ki te wai. I taua wā anō, whakaritea ngā taputapu whakamahana, pērā i te oumu hiko, te kaukau wai pāmahana pumau, me ētahi atu, kia taea ai e te taputapu whakamahana te whakamahana pumau i te pāmahana wai ki te āhua kohua me te pupuri i te tika o te whakahaere pāmahana. Hei tāpiri, me whakamahi hoki i ngā taputapu āwhina pērā i ngā taima, ngā inemahana, me ngā tweezers hei tuhi tika i ngā raraunga wā me te pāmahana i te wā whakamātautau, hei whakahaere hoki i te whakahaere tauira.
(II) Te tukanga whakamātautau
Whakatakotoria te tauira ki roto i te ipu: Āta whakanohoia te tauira o te papa hope silicone kua horoia, kua whakamaroketia ki roto i te ipu whakamātautau kua rite, kia kore ai ngā tauira e taupatupatu tetahi ki tetahi, kia mau tonu hoki te tawhiti mai i te pakitara o te ipu kia taea ai e te wai te karapoti me te pa atu ki ngā mata katoa o te tauira i te wā e whakamahana ana.
Tāpirihia he wai, ka whakamahana: Tāpirihia he wai parakore, he wai māori rānei ki te ipu kia kapi katoa te tauira o te papa hope silicone i te wai. Ko te tikanga, me 2-3 henimita te teitei o te wai i runga ake i te mata o te tauira. Whakatakotoria te ipu me te tauira me te wai ki runga i te taputapu whakamahana, tahurihia te taputapu whakamahana, ka whakamahana i te wai kia koropupū. I te wā e whakamahana ana, me āta whakahaere te tere o te whakamahana kia kore ai e tere rawa te piki o te pāmahana o te wai, ka pāngia te tauira e te ru wera, ka pakaru, ka kino rānei. I taua wā anō, whakamahia he inemahana hei aroturuki i te huringa o te pāmahana o te wai i te wā tonu kia tino eke te pāmahana o te wai ki te āhua koropupū o te 100°C.
Te whakahaere i te wā kohua: Whakatauhia te wā kohua o te tauira papa hope silicone i roto i te wai kohua kia rite ki ngā kaupapa me ngā whakaritenga whakamātautau rerekē. I te nuinga o te wā, ko te wā kohua noa mai i te 1 ki te 48 hāora. Me aro te wā kohua motuhake ki ngā paerewa e tika ana, me whakatakoto rānei kia rite ki te whakamahinga tūturu me te roa o te oranga e tumanakohia ana o te hua. Hei tauira, mō ētahi papa hope silicone e whakamahia ana mō ngā mahi whakatairanga poto, me whakahaere pea he whakamātautau kohua poto ake (pērā i te 1 ki te 2 hāora) hei aromatawai tuatahi i tō rātou kaha ki te tu atu i ngā pāmahana teitei i roto i te wā poto; mō ngā hua papa hope silicone e whakamahia ana mō te wā roa, kia pai ake ai te tirotiro i tō rātou pakari me te pumau, e taunakihia ana kia whakahaerehia he whakamātautau kohua roa ake (pērā i te 24 ki te 48 hāora) hei whakatauira i te pānga kohikohi pāmahana teitei ka pā ki te hua i roto i ngā tau e whakamahia ana.
(III) Te tukatuka i muri i te whakamātautau
Te tango i ngā tauira me te whakamatao: Kia tae te whakamātautau kohua ki te wā kua whakaritea, whakamahia he tweezers me ētahi atu taputapu hei tango marie i te tauira papa hope silicone mai i te wai kohua, ka whakanoho tonu i te tauira ki roto i tētahi ipu kī tonu i te wai matao kia tere te whakamatao hei aukati i te tukanga tauhohenga matū wera i roto i te tauira. Ko te wā whakamatao ka whakahaerehia i te nuinga o te wā i te 5 ki te 10 meneti hei whakaiti i te pāmahana o te tauira ki te tata ki te pāmahana rūma. Ko te kaupapa o te whakamatao tere he whakahaere i ngā mahi tirotiro me te whakamātautau i muri mai. Ka āwhina hoki ki te whakatika i te āhua o te tauira i muri i te maimoatanga pāmahana teitei me te ārai i ngā rerekētanga mahi tauira i puta mai i ngā huringa pāmahana i te wā whakamatao taiao.
Te horoi me te whakamaroke: Horoia anō te tauira o te papa hope silicone kua whakamatao ki te wai ma hei tango i ngā paru e piri ana ki te mata o te tauira me ngā toenga unahi me ētahi atu putunga. Kātahi ka murua mārire te makuku i runga i te mata o te tauira ki te kakahu ngohengohe ma, ka waiho rānei ki roto i te taiao e pai ana te hau kia maroke noa iho kia maroke ai te tauira i te wā e whakamātautauhia ana, e mātakitakihia ana hoki.
(IV) Te tirotiro me te tuhi i ngā hua
Tirotiro āhua: I raro i ngā āhuatanga mārama pai, āta tirohia ngā panonitanga āhua o te tauira papa hope silicone, tae atu ki te āhua ōrite o te tae, te memeha, te rerekētanga o te tae, te ira rānei, te maeneene o te mata, te kore e rakuraku, te mirumiru, te pakaru, te horapa rānei o te āhua. Mō ngā hapa āhua e kitea ana, me tuhi taipitopito ō rātou wāhi, te rahi, te āhua me ētahi atu āhuatanga, ā, me tango whakaahua hei tāpiritanga ki te pūrongo whakamātautau hei tātaritanga me te matapakinga anō.
Te ine i te rahinga me te pakeketanga: Whakamahia ngā taputapu ine tika, pērā i ngā calipers vernier, ngā whakamātautau pakeketanga, me ētahi atu, hei ine i ngā tawhā rahinga (pērā i te roa, te whānui, te matotoru, me ētahi atu) me ngā uara pakeketanga o ngā tauira papa hope silicone i mua me muri i te whakamātautau wai kohua, me te tatau i ō rātou tere huringa. Hei tatau i te tere huringa rahinga, ka taea te whakamahi i te tātai e whai ake nei:
Te kimi i te hekenga rauemi: Kohia ngā tauira wai i muri i te whakamātautau wai kohua, ka whakahaerehia he tātaritanga tauanga o te ihirangi matū kino i roto i ngā tauira wai e ai ki ngā tikanga kua tohua i roto i ngā paerewa e tika ana (pēnei i te chromatography wai mahi teitei, te chromatography hau-spectrometry papatipu, me ētahi atu) hei whakatau mena kei roto i te papa hope silicone ētahi matū kino kua heke ki roto i te wai i raro i ngā āhuatanga pāmahana teitei, me te aromatawai mena ka tutuki te nui o te hekenga i ngā whakaritenga o ngā paerewa haumaru e tika ana.
(V) Te tātari raraunga me te aromatawai
Tātaritanga whakatairite: Whakatauritea, tātarihia hoki ngā raraunga mahi rerekē (pēnei i te āhua, te tere huringa ā-ahu, te tere huringa pakeke, te nui o te hekenga rauemi, me ētahi atu) o ngā tauira papa hope silicone i mua me muri i te whakamātautau wai kohua hei aromatawai i tō rātou pumau me te roa i roto i ngā taiao pāmahana teitei. Mā te whakatairite i ngā raraunga o ngā tauira rerekē, ka taea te tātari i ngā hua papa hope silicone he pai ake te mahi me te kounga pono ake.
Aromatawai Whakatutukitanga: E ai ki ngā paerewa kounga me ngā whakaritenga haumaru kua whakaritea i mua, ka aromatawaihia ngā hua whakamātautau mō te tutukitanga. Mena ka tutuki i ngā tohu whakamātautau katoa o te tauira papa hope silicone ngā whakaritenga rohe kua tohua i roto i ngā paerewa e tika ana, ka taea te whakatau he pai te mahi a te tauira i roto i te whakamātautau wai kohua, he pai te pumau me te haumaru o te pāmahana teitei, ā, ka taea te whakaaro mō ngā hoko mākete, te whakawhānui ake rānei i te tauine whakaputa; i te ritenga kē, ki te kore ngā hua whakamātautau o te tauira e tutuki i ngā whakaritenga paerewa, me mahi ngā whakatikatika me ngā whakapainga e rite ana ki te tauira hua, te tukanga whakaputa, ngā rauemi mata rānei, me ētahi atu, hei whakapai ake i te kounga hua me te whakatutuki i ngā hiahia o te mākete me ngā kaiwhakamahi.

5. Ngā whakatūpato i roto i te whakamātautau wai kohua

Te tiakitanga haumaru: I te wā e whakamātautau ana i te wai kohua, nā te mea kei te whakamahia ngā taputapu wai me te whakamahana pāmahana teitei, me mau te kaiwhakamātautau i ngā taputapu tiaki e tika ana, pērā i ngā karapu whakamahana, ngā mōhiti kanohi, me ētahi atu, hei ārai i ngā wera me ngā aituā. I taua wā anō, me whakarite kia pai te tūnga o ngā taputapu whakamahana hei karo i te tūponotanga o te ru hiko i puta mai i te pakaru hiko.
Te āhua o te tauira: Me whakaatu te tauira i te kounga o te puranga katoa o ngā hua hipoki hope silicone. Nō reira, i roto i te tukanga whiriwhiri tauira, me whai i te mātāpono o te whiriwhiri tauira matapōkere hei karo i te rerekētanga o te tauira nā ngā āhuatanga tangata. I taua wā anō, ngana ki te whiriwhiri i ngā tauira kāore he hapa kitea o te āhua me ngā whakaritenga rahi e tutuki ana i ngā whakaritenga paerewa mō te whakamātautau hei whakarite i te tika me te pono o ngā hua whakamātautau.
Te whakahaere i ngā āhuatanga whakamātautau: Me whakahaere kia rite ki ngā āhuatanga whakamātautau kua whakaritea i mua, tae atu ki te parakore o te wai, te tere whakamahana, te wā kohua, te tikanga whakamatao, me ētahi atu. Tērā pea ka pā nui ēnei āhuatanga ki ngā hua whakamātautau. I te wā o te whakamātautau, me pupuri tonu te ōritetanga o ngā āhuatanga whakamātautau kia kore ai e puta he hapa whakamātautau me ngā rerekētanga o ngā hua i puta mai i ngā rerekētanga o te āhuatanga. Hei tauira, whakamahia te wai mai i te puna wai kotahi mō te whakamātautau, te whakahaere i te mana o ngā taputapu whakamahana kia pumau, kia rite te wā kohua me te wā whakamatao o ia whakamātautau, me ētahi atu.
Te āheinga ki te tāruarua me te tāruarua o ngā hua whakamātautau: Hei whakarite i te pono me te mana o ngā hua whakamātautau wai kohua, e taunakihia ana kia tāruaruatia te whakamātautau o te hua kotahi i ngā wā maha, ā, kia whakamātautauhia i roto i ngā taiwhanga rerekē, i ngā kaiwhakahaere rerekē rānei, hei manatoko i te āheinga ki te tāruarua me te tāruarua o ngā hua whakamātautau. Mena he nui ngā rerekētanga i waenga i ngā hua whakamātautau maha, me tātari hohonu ngā take, me kimi ngā hononga ngoikore o te tukanga whakamātautau, me whakapai ake kia tae rā anō ki te whiwhi hua whakamātautau pumau me te pono.
Te whakakotahitanga me ētahi atu tikanga whakamātautau: Ahakoa ka taea e te whakamātautau wai kohua te whakarato i ngā mōhiohio nui mō te mahi a ngā papa hope silicone i roto i ngā taiao pāmahana teitei, kāore e taea te whakaata katoa i ngā āhuatanga mahi me te kounga o te hua. Nō reira, i roto i te tukanga tirotiro kounga tuturu, me whakakotahi te whakamātautau wai kohua me ētahi atu tikanga whakamātautau (pēnei i te whakamātautau kaha kume, te whakamātautau kaha haehae, te whakamātautau ātete ki te pakū, te whakamātautau koroheketanga, me ētahi atu) hei aromatawai whānui i te kounga me te mahi a ngā papa hope silicone mai i ngā koki maha, me te whakarato i te tautoko raraunga whānui me te tika mō te rangahau me te whanaketanga hua, te whakaputa me te tono.

6. Tātaritanga take: Whakamātautau wai kohua o tētahi waitohu papa hope silicone

Hei whakaatu māmā ake i te whakamahinga me te aromatawai pānga o te whakamātautau wai kohua o ngā papa hope silicone, koinei te tātaritanga taipitopito o tētahi waitohu papa hope silicone hei tauira.
(I) Papamuri whakamātautau
Ko tēnei waitohu papa hope silicone e aro nui ana ki ngā rōpū kaihoko wahine rangatahi, e kī ana he pai te ngāwari me te whakamarie, ā, ka taea te whakarei ake i te ataahua o ngā piko o te hope i roto i ngā kakahu o ia rā. Hei manatoko mēnā e tutuki ana te kounga me te mahi o tana hua i ngā whakaritenga rongonui, tae atu ki tōna pumau me te haumaru i roto i ngā taiao pāmahana teitei, i whakahaerehia e mātou he whakamātautau wai kohua ki runga.
(II) Ngā tauira whakamātautau me ngā tikanga
Kōwhiringa tauira: E rima ngā tauira i tīpakohia matapōkeretia mai i te puranga hua kotahi o tēnei waitohu papa hope silicone, kua tohua ko A, B, C, D, me E. Kāore he hapa kitea o ēnei tauira, he rite tonu te rahi, ā, he ōrite te tae.
Ngā tikanga whakamātautau: Ka whakamahia te wai parakore hei reo whakamātautau, ā, ka rumakina katoatia ngā tauira ki te wai, ka whakamahanatia kia koropupū, ā, ka pupuri tonu kia koropupū mō ngā haora 24. I muri i te whakamātautau, ka tangohia ngā tauira, ka whakamatao, ka horoia, ka whakamarokehia, kātahi ka whakamatautauria, ka tirohia hoki ngā tohu mahi.
(III) Ngā hua whakamātautau me te tātari
Tirotiro āhua: Whai muri i te whakamātautau, i kitea he iti noa ngā mirumiru ririki i puta mai i te mata o ngā tauira A me B, ā, he kōwhai paku te tae; kāore he huringa mārama i kitea i te mata o te tauira C; i whakaatu ngā tauira D me E i te paku whānui me te rerekētanga, ā, he iti noa ngā kapiti i ngā taha.
Ngā Huringa Rahi me te Pakari: Whai muri i te ine me te tatau, ka piki te roa o te tauira A mā te 1.2%, ka piki te whānui mā te 0.8%, ā, ka piki te matotoru mā te 0.5%, ā, ka piki te pakeke mai i te 35 Takutai A tuatahi ki te 40 Takutai A; ko ngā tere huringa rahi o te tauira B he 0.8% te roa, 0.6% te whānui, me te 0.3% te matotoru, ā, ka piki te pakeke ki te 38 Takutai A; ko ngā tere huringa rahi o te tauira C i roto katoa i te 0.5%, ā, kāore i rerekē te pakeke; ka piki te roa o te tauira D mā te 2.0%, ka piki te whānui mā te 1.5%, ā, ka piki te matotoru mā te 1.0%, ā, ka heke te pakeke ki te 32 Takutai A; he rite te tere huringa rahi o te tauira E ki te tauira D, ā, ka heke anō hoki te pakeke.
Te kitenga i te hekenga rauemi: Whai muri i te tātari i ngā tauira wai kohua, i kitea he iti noa ngā konganuku taumaha (mata me te cadmium) i heke mai i ngā tauira A me B, ā, tata tonu te ihirangi ki te rohe kua tohua i roto i ngā paerewa e tika ana; i kitea he iti noa te hekenga o te plasticizer i roto i ngā tauira D me E, engari kāore i kitea he hekenga mārama o ngā matū kino i roto i te tauira wai o te tauira C.
(IV) Whakatau Aromatawai
I runga i ngā hua o te whakamātautau i runga ake nei, ka kitea he rerekētanga nui o te mahi a tēnei waitohu papa hope silicone i roto i te whakamātautau wai kohua. He pai te mahi a te Tauira C i roto i te āhua, te pumau o ngā āhuatanga, te pupuri i te pakeke me te hekenga rauemi, ā, e tutuki ana i ngā whakaritenga kounga; ko ngā tauira A, B, D, me E he raruraru ki ngā taumata rerekē, pērā i ngā hapa āhua, te tere whakarerekētanga o ngā āhuatanga nui, ngā whakarerekētanga pakeke rerekē, me te hekenga o ngā matū kino, ka pā pea ki te mahi me te haumaru o te hua. Nō reira, me whakapai ake me te arotau i te kounga whānui o tēnei waitohu papa hope silicone. E taunakihia ana kia mahi ngā kaihanga i ngā mahi e rite ana ki te whiriwhiri rauemi mata me te whakahaere tukanga whakaputa hei whakapai ake i te kounga hua hei whakautu i ngā raruraru i kitea i roto i te whakamātautau, kia tutuki ai te hiahia o te mākete me ngā whakaritenga haumaru me te hauora o te kaihoko.

7. Whakarāpopototanga me te Tirohanga

Hei tikanga tirotiro kounga māmā, whai hua hoki, he mea nui te whakamātautau wai kohua o ngā papa hope silicone ki te aromatawai i te kounga hua, te pumau me te haumaru. Mā te whakataki taipitopito o tēnei tuhinga, ka mārama mātou ki ngā mātāpono, ngā kaupapa, ngā mahi, ngā whakatūpato me te tātari take o te whakamātautau wai kohua, ā, ko te tumanako ka āwhina i ngā kamupene me ngā kaimahi e tika ana kia pai ake te mōhio ki tēnei tikanga whakamātautau me te tautoko kaha mō te whakahaere kounga ongā hua papa hope silicone.
I ngā rā kei te heke mai, me te whanaketanga tonu o te hangarau rauemi silicone me te tipu haere o te tono mākete, ka whakapai tonuhia, ka whakahoutia hoki ngā paerewa tirotiro kounga me ngā tikanga whakamātautau mō ngā papa hope silicone me ētahi atu hua silicone. Ina taea te whakamahi i ngā hangarau me ngā taputapu whakamātautau matatau ake ki te aromatawai kounga o ngā hua silicone, ka whakapai ake anō te tika, te whai hua me te pono o te whakamātautau. I taua wā anō, ka whakapakarihia te whakaritenga me te mahi tahi o ngā paerewa o te ao hei whakatairanga i te whanaketanga hauora me te pumau o te umanga hua silicone, me te whakarato i ngā hua silicone kounga pai ake me te haumaru ake ki ngā kaihoko o te ao.