ʻO ka wehewehe kikoʻī o nā kūlana hoʻokō kīʻaha wai plastik

1. Nā kūlana hoʻokō nowai ilikaiʻO nā kīʻahaMa Kina, pono ka hana ʻana a me ke kūʻai ʻana i nā kīʻaha wai plastik e hoʻokō i nā kūlana hoʻokō kūpono, ʻo ia ka mea nui i nā ʻano aʻe:

1. GB 4806.7-2016 "Nā mea pili i ka meaʻai huahana plastik"
Hōʻike kēia maʻamau i nā hōʻailona hana kino, kemika a me ka palekana o nā huahana plastik meaʻai, me ka dissolution, volatility, unstable reactions, scratches and wear, corrosion degree, etc.
2. QB/T 1333-2018 “Kāʻaha wai palaki”
Kuhi ʻia kēia maʻamau i nā koi no ka mea, ka hoʻolālā, ka palekana, ka mālama ʻana i ke kaiapuni a me ka maʻemaʻe o nā kīʻaha wai plastik, me nā koi no ka pūpū kīʻaha plastik, kīʻaha kīʻaha, lalo kīʻaha a me nā ʻāpana ʻē aʻe.
3. GB / T 5009.156-2016 "Ka hoʻoholo ʻana o ka neʻe ʻana i nā huahana plastik no ka hoʻohana ʻana i ka meaʻai"
He koi kēia maʻamau no ka hoʻoholo ʻana i ka neʻe holoʻokoʻa i nā huahana plastik no ka hoʻohana ʻana i ka meaʻai, me nā mea e pili ana i ka hoʻāʻo ʻana i ka laʻana, reagent dosage, a me nā kaʻina hoʻāʻo.

2. Mea o ka ipu wai plastik
ʻO nā mea maʻamau i hoʻohana ʻia no nā kīʻaha wai plastik he polyethylene (PE), polypropylene (PP), polystyrene (PS) a me ka polycarbonate (PC). Ma waena o lākou, PE a me PP ka paʻakikī maikaʻi a me ke kū'ēʻana i ke kaomi, a hoʻohana mauʻia e hana i nā kīʻaha wai keʻokeʻo a māmā; He kiʻekiʻe ka paʻakikī o nā mea PS, ke aniani maikaʻi, nā kala ʻālohilohi, a maʻalahi ke hana ʻia i nā ʻano like ʻole, akā ʻoi aku ka māmā o ke kaumaha; ʻO nā mea PC He paʻakikī ikaika a me ka ikaika, ka paʻakikī maikaʻi a me ke aniani kiʻekiʻe, a hiki ke hoʻohana ʻia e hana i nā kīʻaha wai kiʻekiʻe.
3. Ka palekana o nā kīʻaha wai plastik
ʻO ka palekana o nā kīʻaha wai plastik e pili ana i ka hana ʻana i nā kemika e hōʻino i ke olakino kanaka. Kūlike nā mea plastik i hoʻohana maʻamau i nā kūlana olakino a palekana, akā ke ʻike ʻia i nā mea wela kiʻekiʻe, hiki ke hoʻokuʻu ʻia nā mea ʻino, e like me benzene a me diphenol A. Manaʻo ʻia nā mea kūʻai aku e koho i nā huahana e pili ana i nā kūlana aupuni a e makaʻala ʻaʻole e hoʻohana i nā kīʻaha wai i nā wahi wela kiʻekiʻe.

4. Ka mālama ʻana i ke kaiapuni o nā kīʻaha wai plastik ʻO ka mālama ʻana i ke kaiapuni o nā kīʻaha wai plastik e pili nui ana inā hiki ke hana hou a hoʻohana hou ʻia. Hiki ke hana hou ʻia nā kīʻaha wai ʻili i kūpono i nā kūlana aupuni, akā inā he deformed, māwae, a me nā mea ʻē aʻe i ka wā e hoʻohana ai, hiki ke hoʻopili ʻia ka hopena o ka hana hou ʻana. Paipai ʻia nā mea kūʻai aku e hoʻomaʻemaʻe i nā kīʻaha wai ma hope koke o ka hoʻohana ʻana a hana hou iā lākou ma ke ʻano kūpono.
5. Ka hopena
ʻAʻole hiki i ke koho ʻana i nā kīʻaha wai plastik palekana a me ke kaiapuni ke pale wale i ke olakino o nā mea kūʻai aku, akā ke pāʻani pū kekahi i ka hana maikaʻi i ka mālama ʻana i ke kaiapuni. I ke kūʻai ʻana i nā kīʻaha wai plastik, hiki i nā mea kūʻai ke nānā i nā kūlana hoʻokō o ka huahana a i ʻole nā ​​palapala hōʻoia kūpono, a hoʻohana i kēia ma ke ʻano he koho e koho ai i nā huahana kiʻekiʻe.