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For indoor air quality, CLT has been tested to determine the level! d2 x2 H' W8 Y9 t4 H
and safety of the off gassing it produces. CLT glue lines were tested for 5 d8 @1 c4 @# v' j5 [& \volatile organic compounds (VOCs), including formaldehyde emissions. : d% C) t# \; {The VOCs as measured in a series of tests were found to be roughly one1 G* j) J. L1 F+ `( D
parts per billion (ppb), well under the standard of 50 ppb deemed to be / l" c2 u& e% Pa health hazard. + I4 |9 |! M2 W7 q2 @* l+ }7 K6 L! W* R2 u! V9 T9 p7 P
source: + o/ G% g% S) e+ }# cCROSS-LAMINATED TIMBER IN BRITISH COLUMBIA( }! T9 B- r! t% D% [+ J) u( {, C http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 " q2 ^- U' O: o+ G/ ?) A0 \For indoor air quality, CLT has been tested to determine the level , q4 }+ |) x k; x/ `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。
石工 发表于 2016-6-3 05:29) \: |- |6 o0 ~8 \9 v8 t" x3 z
For indoor air quality, CLT has been tested to determine the level% @" S" s2 l5 U
and safety of the off gassing i ...
" ^& Z1 N$ @' G. q, ~- i 3 P. N7 k) Z8 ?5 y# {4 F2 T60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。