'Ohi 'ia ka 'ike a pau i loko o ka mahele "Emissions" mai EWPAA: Technical Note, Formaldehyde Emissions from Plywood and Laminated Veneer Lumber.
E pili ana kēia ʻāpana i ka hoʻāʻo ʻana o ka formaldehyde mai nā huahana branded EWPAA, e hōʻuluʻulu ana i ka noiʻi i hoʻopau ʻia e ka EWPAA e hōʻike ana nā hoʻokuʻu ʻana mai nā huahana Type A Bonded, me nā phenolic adhesives, e hōʻike ana ma luna o 90% o ka hana EWPAA i loaʻa ʻole ka hoʻokuʻu ʻana.
Formaldehyde
ʻO ka Formaldehyde he kinoea ʻeleʻele a ʻala ikaika e kū maoli ana i loko o ke kaiapuni a ua hoʻokuʻu ʻia e nā kaʻina e like me ka palaho, ka puhi ʻana a me ke kūlohelohe e nā ʻano lāʻau āpau.
Hoʻokuʻu Formaldehyde
Hana ʻia ka Plywood i ʻelua ʻano hoʻopili kumu: Phenol Formaldehyde (PF) a me amino plastic, ʻo ia hoʻi ka Melamine Urea Formaldehyde (MUF) a me ka Urea Formaldehyde (UF).
Nui nā ʻokoʻa i ka kemika ma waena o nā ʻano mea hoʻopili ʻelua. Me nā huahana paʻa PF, ma hope o ka pau ʻana o ke koena formaldehyde haʻahaʻa mai ke kaʻina hana i loko o kekahi mau lā, ʻaʻole lākou e hoʻokuʻu i ka formaldehyde.
ʻO ka PF adhesive, hiki ke ʻike ʻia e kona waihoʻoluʻu ʻeleʻele, ua kapa ʻia ʻo Type A ma lalo o nā kūlana ply Australian a me New Zealand e like me ka mea i hoʻohana ʻia i ka hana ʻana i ka lāʻau paʻa, nā huahana o waho o ka lāʻau moana (Type A).
Ma ʻEulopa a me ʻAmelika Hui Pū ʻIa, ua hoʻokaʻawale ʻia nā huahana i hoʻopaʻa ʻia me nā adhesives PF ma ke ʻano he non-emitting a hoʻokuʻu ʻia mai nā kānāwai hoʻokuʻu formaldehyde.
ʻO nā huahana i hoʻopaʻa ʻia ʻo Amino plastic i ʻoi aku ka nui o ke koena formaldehyde manuahi a hiki ke hoʻokuʻu i nā pae haʻahaʻa o ka formaldehyde.
Manaʻo Manaʻo Hoʻoholo
ʻO nā hoʻokuʻu formaldehyde mai nā huahana i hōʻoia ʻia e EWPAA aia ma lalo o nā palena hoʻolaha i ʻae ʻia e Workplace Australia a ʻaʻole ia he pilikia olakino.
ʻO nā papa hoʻokuʻu formaldehyde ma ka Australian/New Zealand Standards nā kikoʻī ma ka papa ma lalo. ʻO nā huahana i hōʻailona ʻia me nā papa hoʻokuʻu E0 a me E1 he haʻahaʻa haʻahaʻa haʻahaʻa formaldehyde.
Papa Hoʻokuʻu ʻia ka palena hoʻokuʻu ʻia ʻo Formaldehyde (mg/l) palena hoʻokuʻu ʻia ʻo Formaldehyde (ppm)*
ʻO Super E0 ʻAʻole i like a i ʻole like me 0.3 ʻOi a i ʻole like me 0.024
E0 Li'ili'i a i 'ole like me 0.5 Li'ili'i a i 'ole like me 0.04
E1 Liʻiliʻi a i ʻole like me 1.0 Liʻiliʻi a i ʻole like me 0.08
Ka manawa hoʻouna: ʻOkakopa-19-2021