I-PFHxA iya kubandakanywa kulawulo lolawulo lwe-REACH

NgoFebruwari 29, 2024, iKomiti yaseYurophu yoBhaliso, uVavanyo, iLayisenisi kunye nokuThintelwa kweMichiza (FIKELELA) ivotele ukuvuma isindululo sokunqanda i-perfluorohexanoic acid (PFHxA), iityuwa zayo, kunye nezinto ezinxulumeneyo kwiSihlomelo XVII somgaqo we-REACH.
1. Ngokumalunga ne-PFHxA, iityuwa zayo, kunye nezinto ezinxulumene nazo
1.1 Ulwazi lwezinto eziphathekayo
I-Perfluorohexanoic acid (PFHxA) kunye neetyuwa zayo kunye nezinto ezinxulumene nazo zibhekisa ku:
Iikhompawundi kunye namaqela e-perfluoroapentyl adityaniswe kwi-athomu yekhabhoni ethe ngqo okanye ene-branched C5F11
Ukuba namaqela e-C6F13 e-perfluorohexyl ethe tye okanye emasebeni
1.2Ngaphandle kwezi zinto zilandelayo:
C6F14
C6F13-C (=O) OH, C6F13-C (=O) OX ′ okanye C6F13-CF2-X ′ (apho X ′=naliphi na iqela elisebenzayo, kuquka ityuwa)
Nayiphi na into ene-perfluoroalkyl C6F13- eqhagamshelwe ngokuthe ngqo kwiiathom zesulfure
1.3Ukunciphisa iimfuno
Kwimathiriyeli elinganayo:
PFHxA kunye nesixa sayo setyuwa: ＜ 0.025 mg/kg
Itotali yezinto ezinxulumene ne-PFHxA: ＜ 1 mg/kg
2. Ukulawula umda
Igwebu lokulwa nomlilo kunye negwebu lokulwa nomlilo ligxininise ukulwa nomlilo kawonke-wonke, uqeqesho kunye novavanyo: iinyanga ezili-18 emva kokuba imimiselo iqale ukusebenza.
Ukusetyenziswa kuluntu: amalaphu, ulusu, uboya, izihlangu, imixube kwimpahla kunye nezixhobo ezinxulumeneyo; Izithambiso; Iphepha lokudibanisa ukutya kunye nekhadibhodi: Iinyanga ze-24 ukususela ngomhla wokuqalisa kwemimiselo.
Iimpahla ezilukiweyo, ufele, kunye noboya kwiimveliso ngaphandle kwempahla kunye nezincedisi ezinxulumeneyo ezisetyenziselwa ukusetyenziswa luluntu: iinyanga ezingama-36 ukusuka kumhla wokuqalisa kwemimiselo.
I-Civil aviation fire fighter foam kunye ne-fire fighter foam concentrate: kwiinyanga ezingama-60 emva kokusebenza kwemimiselo.
I-PFHxAs luhlobo lwe-perfluorinated kunye ne-polyfluoroalkyl compound (PFAS). Izinto ze-PFHxA zithathwa ngokuba nokuzingisa kunye nolwelo. Zisetyenziswa ngokubanzi kumashishini amaninzi, njengephepha kunye nebhodi yephepha (izinto zokunxibelelana ngokutya), iimpahla ezilukiweyo ezifana nezixhobo zokuzikhusela, iimpahla zasendlini kunye nempahla, kunye negwebu lomlilo. Isicwangciso sophuhliso oluzinzileyo se-EU kwiikhemikhali sibeka umgaqo-nkqubo wePFAS phambili kunye neziko. IKhomishini yaseYurophu izibophelele ekupheliseni ngokuthe ngcembe yonke i-PFAS kwaye ivumele ukusetyenziswa kwayo kuphela kwiimeko apho kungqinwe njengento engenakubuyiselwa kwaye ibalulekile eluntwini.
ILebhu yoVavanyo lwe-BTF ixhotyiswe ngamaziko ovavanyo abuchwephesha kunye apheleleyo, iqela elinamava ovavanyo kunye neengcali zesatifikethi, kunye nokukwazi ukusombulula uvavanyo oluntsonkothileyo kunye neengxaki zesiqinisekiso. Sithobela imigaqo ekhokelayo "yobulungisa, ukungakhethi buso, ukuchaneka, kunye nokungqongqo" kwaye silandela ngokungqongqo iimfuno ze-ISO/IEC 17025 yovavanyo kunye nenkqubo yolawulo lwelebhu yokulinganisa kulawulo lwezenzululwazi. Sizimisele ukubonelela abathengi ngeyona nkonzo iphakamileyo. Ukuba unayo nayiphi na imibuzo, nceda uzive ukhululekile ukuqhagamshelana nathi nangaliphi na ixesha.