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For indoor air quality, CLT has been tested to determine the level " X& `# @- C2 Rand safety of the off gassing it produces. CLT glue lines were tested for4 u% ]" M3 k, I& t- T5 e& m5 W0 H2 S
volatile organic compounds (VOCs), including formaldehyde emissions.5 D7 A1 s& L# N" f0 [( x; Z) {. c& e
The VOCs as measured in a series of tests were found to be roughly one+ h' r" M s$ u0 e$ L
parts per billion (ppb), well under the standard of 50 ppb deemed to be2 {6 D" q: c2 f' |
a health hazard.# H, @* m7 B% S$ j K- y
石工 发表于 2016-6-2 15:29 0 N* L5 B1 O ^/ n8 R: B) I$ @For indoor air quality, CLT has been tested to determine the level- A; P S6 [4 u& J8 S$ B/ o
and safety of the off gassing i ...
石工 发表于 2016-6-3 05:29 & J0 z8 U) e! d( H! j! f1 nFor indoor air quality, CLT has been tested to determine the level 1 \ s" ~4 A' T- ~and safety of the off gassing i ...
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5 ~) M+ I# M' Q5 X# ~; A: N% x; [
60年代这边还很时兴喷聚尿醛泡沫,后来就是因为有formaldehyd释放而弃用了。