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For indoor air quality, CLT has been tested to determine the level $ E4 g% g0 ^0 Q$ zand safety of the off gassing it produces. CLT glue lines were tested for9 h! z9 {* O4 `- v' d* d& E1 v
volatile organic compounds (VOCs), including formaldehyde emissions.' m6 S3 u: L( h
The VOCs as measured in a series of tests were found to be roughly one1 K! H+ j7 x% T# Q8 z
parts per billion (ppb), well under the standard of 50 ppb deemed to be/ V6 }1 y2 s/ b
a health hazard. 5 o8 S4 Q5 L6 u4 q" j' r$ I- G$ [8 E' `5 g8 P1 n3 l+ Q
source:$ w; d; }0 m3 o; L9 S- V% M CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA) v- N$ h, e- G+ D/ H6 S http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29! K4 N' V* C# }3 a6 Q! H2 Y/ b: y
For indoor air quality, CLT has been tested to determine the level L E0 d1 X! S% i( }
and safety of the off gassing i ...
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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。
本帖最后由 fish97 于 2016-6-3 14:00 编辑 . e" X6 L2 c! _% t: g0 U2 D" i
石工 发表于 2016-6-3 05:291 r( [7 W" L* u4 h1 F6 k
For indoor air quality, CLT has been tested to determine the level$ p5 e5 ?' O3 V9 h, z
and safety of the off gassing i ...
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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。