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For indoor air quality, CLT has been tested to determine the level+ H: X# {; {8 D9 V2 m; Y" U
and safety of the off gassing it produces. CLT glue lines were tested for5 f$ u$ Y" d0 N$ M j: G
volatile organic compounds (VOCs), including formaldehyde emissions. 5 V$ S. M& X Q% L6 qThe VOCs as measured in a series of tests were found to be roughly one % v0 s1 l' g( u& J7 v$ F6 Lparts per billion (ppb), well under the standard of 50 ppb deemed to be' j* X7 k# p8 A" M; b: E
a health hazard.% |4 M7 _ M+ x; d$ Y( H" {* I
石工 发表于 2016-6-2 15:29! T3 Q, H3 _) Y4 b( l% @* p! D
For indoor air quality, CLT has been tested to determine the level$ k7 Z z* p. j& U
and safety of the off gassing i ...
石工 发表于 2016-6-3 05:294 N! w) p$ ? E' ?
For indoor air quality, CLT has been tested to determine the level 7 H- F" y2 m# T0 z* F0 fand safety of the off gassing i ...
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( p P; |8 U9 m/ ?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。