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For indoor air quality, CLT has been tested to determine the level+ k$ H! D, K( I9 ?
and safety of the off gassing it produces. CLT glue lines were tested for2 l" V1 ]) _5 {5 ?5 }
volatile organic compounds (VOCs), including formaldehyde emissions./ E/ M/ Q( }3 m5 @9 A! A1 a. _
The VOCs as measured in a series of tests were found to be roughly one 4 I! c c1 f+ r/ Lparts per billion (ppb), well under the standard of 50 ppb deemed to be. M8 A& @) y b( T& N: V5 A
a health hazard." ~ n v; b+ \' y
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source: 6 c/ u' a( B' ECROSS-LAMINATED TIMBER IN BRITISH COLUMBIA- z' i- i. Y2 W http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 ; f( @" K: `9 d( z# P4 r, BFor indoor air quality, CLT has been tested to determine the level; M* X& G$ O+ X0 y1 ?4 x1 _
and safety of the off gassing i ...
h. s7 l& u1 b& Y4 v5 }8 w
CLT肯定是符合标准的,我只是对现行标准不大放心。treated wood在当年也是符合标准的。
石工 发表于 2016-6-3 05:29) B, U% Y" _% b: S3 j9 l4 L1 R
For indoor air quality, CLT has been tested to determine the level 7 V+ v: d, k b# e+ b; Q/ kand safety of the off gassing i ...
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/ q+ U* i# _2 k
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。