I-TPCH e-United States ikhipha imihlahlandlela ye-PFAS ne-Phthalates

NgoNovemba 2023, umthethonqubo we-US TPCH wakhipha idokhumenti yomhlahlandlela nge-PFAS ne-Phthalates emaphaketheni. Lo mbhalo womhlahlandlela unikeza izincomo mayelana nezindlela zokuhlola amakhemikhali ahambisana nokupakishwa kwezinto ezinobuthi.

Ngo-2021, imithethonqubo izobandakanya i-PFAS kanye ne-Phthalates ngaphansi kokulawulwa futhi ivimbele ukusetshenziswa kwazo ngamabomu emaphaketheni nakuchungechunge lwayo lokunikezela. Ngaleso sikhathi, izwe ngalinye lenze izinguquko emithethweni ekhona noma lenze imithetho emisha neziqondiso ukuvimbela izinto ezinobuthi neziyingozi emaphaketheni. Muva nje, izifundazwe eziningi zivimbele ukusetshenziswa kwezinto ze-PFAS emaphaketheni okudla.
Lo mbhalo womhlahlandlela uhlinzeka ngezindlela zokuhlola ezinconyiwe ze-PFAS, njenge-fluoride ephelele. Uma ingqikithi yokuqukethwe kwe-fluorine ingaphansi kwe-100ppm futhi ihlangabezana nezindinganiso zokulawula ikhwalithi, umkhiqizo ungabhekwa njengokungenzeka ukuthi awungezi ngamabomu izinto ze-PFAS. Uma ingqikithi yokuqukethwe kwe-fluorine iphansi kakhulu (njengangaphansi kuka-100ppm), esinye isiqinisekiso singenziwa nomphakeli. Umbhalo womhlahlandlela ugcizelela ukuthi ukubeka izinto obala kubalulekile ukuze kuthotshelwe, futhi kuyanconywa ukuthi kusetshenziswe uhlelo olulandelayo ukuze kuqinisekiswe ukuthi i-PFAS ihlose ukwengeza yini:
1) Cela abahlinzeki-mpahla ukuze badalulwe ngokugcwele;
Idinga abahlinzeki ukuthi banikeze ukudalulwa kwezinto ezibonakalayo okuphelele;
2) Cela abahlinzeki ukuthi bavale uma amakhemikhali e-PFAS engeziwe;
Idinga abahlinzeki ukuthi badalule ukuthi ingabe izinto ze-PFAS zengeziwe yini;
3) Bheka ukuqinisekiswa komuntu wesithathu kwezinto zakho
Ufuna isitifiketi esivela eceleni.
I-TPCH iphakamisa ukuthi kusetshenziswe indlela ye-SW 846 8270 yokulungiselela isampula kanye nendlela ye-EPA engu-3541 yokuhlola impahla yokupakisha mayelana nendlela yokuhlola ye-Phthalates. Okulandelayo uhlu lwama-phthalates ngokuvamile ahlaziywa ngezindlela zokuhlola ezingenhla:

I-BTF Testing Lab iyisikhungo sokuhlola esigunyazwe yi-China National Accreditation Service for Conformity Assessment (CNAS), inombolo: L17568. Ngemva kweminyaka yokuthuthuka, i-BTF inelabhorethri ehambelana nozibuthe kagesi, ilabhorethri yokuxhumana engenantambo, ilabhorethri ye-SAR, ilabhorethri yokuphepha, ilabhorethri yokwethembeka, ilabhorethri yokuhlola ibhethri, ilabhorethri yokuhlola amakhemikhali nezinye izindawo zokucwaninga. Inokuhambisana okuphelele kwe-electromagnetic, imvamisa yomsakazo, ukuphepha komkhiqizo, ukuthembeka kwemvelo, ukuhlaziya ukwehluleka kwezinto ezibonakalayo, i-ROHS/REACH namanye amakhono okuhlola. Ilebhu yokuhlola ye-BTF ifakwe izinsiza zokuhlola ezichwepheshile neziphelele, ithimba elinolwazi lokuhlola nochwepheshe bokunikeza izitifiketi, kanye nekhono lokuxazulula izinkinga ezihlukahlukene zokuhlola nezitifiketi. Sithobela izimiso eziqondisayo "zokulunga, ukungakhethi, ukunemba, kanye nokuqina" futhi silandela ngokuqinile izimfuneko ze-ISO/IEC 17025 yokuhlola kanye nohlelo lokuphatha ilabhorethri yokulinganisa yokuphathwa kwesayensi. Sizibophezele ekunikezeni amakhasimende isevisi yekhwalithi ephezulu kakhulu. Uma unemibuzo, sicela ukhululeke ukuxhumana nathi nganoma yisiphi isikhathi.