I-PFHxA izofakwa kulawulo lokulawula lwe-REACH

Ngomhla zingama-29 kuNhlolanja, 2024, iKomidi LaseYurophu Lokubhaliswa, Ukuhlola, Ukunikeza Amalayisense Nokukhawulelwa Kwamakhemikhali (FIKA) ivotele ukugunyaza isiphakamiso sokukhawulela i-perfluorohexanoic acid (PFHxA), usawoti wayo, nezinto ezihlobene ku-Appendix XVII yomthethonqubo we-REACH.
1. Mayelana ne-PFHxA, usawoti wayo, nezinto ezihlobene nayo
1.1 Ulwazi olubalulekile
I-Perfluorohexanoic acid (PFHxA) nosawoti wayo nezinto ezihlobene nayo ibhekisa ku:
Inhlanganisela namaqembu e-perfluoroapentyl axhunywe kuma-athomu ekhabhoni e-C5F11 aqondile noma anegatsha
Ukuba namaqembu aqondile noma amagatsha e-C6F13 perfluorohexyl
1.2 Ngaphandle kwalezi zinto ezilandelayo:
I-C6F14
C6F13-C (=O) OH, C6F13-C (=O) OX ′ noma C6F13-CF2-X ′ (lapho u-X ′=noma yiliphi iqembu elisebenzayo, okuhlanganisa nosawoti)
Noma iyiphi into ene-perfluoroalkyl C6F13- exhunywe ngokuqondile kuma-athomu esibabule
1.3Nciphisa izidingo
Kuzinto ezilinganayo:
PFHxA kanye nesamba sayo sikasawoti: ＜ 0.025 mg/kg
Isamba sezinto ezihlobene ne-PFHxA: ＜ 1 mg/kg
2. Ububanzi bokulawula
Igwebu lokucisha umlilo kanye negwebu lokucisha umlilo ligxile ekucimeni umlilo emphakathini, ukuqeqeshwa nokuhlolwa: Ezinyangeni eziyi-18 ngemuva kokusebenza kwemithethonqubo.
Okokusetshenziswa komphakathi: izindwangu, isikhumba, uboya, izicathulo, izingxube ezingutsheni kanye nezinsiza ezihlobene; Izimonyo; Iphepha lokuxhumana lokudla kanye nekhadibhodi: Izinyanga ezingama-24 kusukela ngedethi yokuqala yokusebenza kwemithetho.
Izindwangu, isikhumba, noboya emikhiqizweni ngaphandle kwezimpahla zokugqoka nezinye izinto ezihlobene ezizosetshenziswa umphakathi: izinyanga ezingama-36 kusukela ngedethi yokuqala yokusebenza kwemithetho.
Igwebu lokucisha umlilo kanye negwebu lokucisha umlilo eligxilile: izinyanga ezingu-60 ngemva kokusebenza kwemithethonqubo.
I-PFHxAs iwuhlobo lwe-perfluorinated ne-polyfluoroalkyl compound (PFAS). Izinto ze-PFHxA zibhekwa njengokuphikelela nokuba noketshezi. Zisetshenziswa kakhulu ezimbonini eziningi, njengamaphepha kanye ne-paperboard (izinto zokuxhumana zokudla), izindwangu ezifana nemishini yokuzivikela yomuntu siqu, izindwangu zasendlini nezingubo zokugqoka, kanye negwebu lomlilo. Isu le-EU lokuthuthukisa amakhemikhali libeka inqubomgomo ye-PFAS phambili naphakathi nendawo. I-European Commission izibophezele ekuqedeni kancane kancane yonke i-PFAS futhi ivumele ukusetshenziswa kwayo kuphela ezimeni lapho kufakazelwa khona ukuthi ayinakushintshwa futhi ibalulekile emphakathini.
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.