1 X* ^# }/ g' \7 u# J
For indoor air quality, CLT has been tested to determine the level1 A' G( {- Q. W1 e" h U5 w
and safety of the off gassing it produces. CLT glue lines were tested for * x6 U% t& L" h( x/ }, yvolatile organic compounds (VOCs), including formaldehyde emissions.4 @0 D7 q4 u8 e5 m
The VOCs as measured in a series of tests were found to be roughly one 0 C3 Z4 ^ r# i% ^* V* \parts per billion (ppb), well under the standard of 50 ppb deemed to be$ R* A( E: N) Z l; r$ F& y8 a
a health hazard.: n8 b7 g9 Z3 X1 V
7 B, v( i3 A+ z% K( y
source: ! q2 | r+ z; C: sCROSS-LAMINATED TIMBER IN BRITISH COLUMBIA ) v+ I" F9 a8 k0 A& ?http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 : |* }% L$ r9 E' | s& l9 d8 jFor indoor air quality, CLT has been tested to determine the level* W( r! {2 E+ k; E& ]
and safety of the off gassing i ...
本帖最后由 fish97 于 2016-6-3 14:00 编辑 5 G. A- c! T1 R, c- M
石工 发表于 2016-6-3 05:29& M6 r) T! P" y* G; U/ r; P" Z
For indoor air quality, CLT has been tested to determine the level$ W2 ^2 t3 x* k3 b5 v1 a
and safety of the off gassing i ...
& j. p) L5 V7 e. {, e) H( q5 F5 ?* b( S% a; P% O
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。