8 i# t! T6 \# k& ^. {8 NFor indoor air quality, CLT has been tested to determine the level( N; t2 y( n- D' z+ ~8 j
and safety of the off gassing it produces. CLT glue lines were tested for % ^6 F. d+ O }9 i9 g* c4 _volatile organic compounds (VOCs), including formaldehyde emissions.+ ~$ @5 v: F2 j" y# N
The VOCs as measured in a series of tests were found to be roughly one " j5 k( ]- H' G8 }1 N: B+ Nparts per billion (ppb), well under the standard of 50 ppb deemed to be 1 Z6 H6 F1 \9 T6 Ta health hazard. / Y/ V, f/ c: w4 a! k/ n$ j2 \1 } 9 p/ u9 U7 z& w3 J0 tsource:; ^4 }$ H; U6 `( D+ \ CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA * p1 Y( Y i* l5 W# h/ }3 ihttp://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29% Y v8 z, W& v `' r4 y
For indoor air quality, CLT has been tested to determine the level 8 g( N6 o, @8 S( uand safety of the off gassing i ...
石工 发表于 2016-6-3 05:297 J: Y; L) e, [; _8 h; g. d
For indoor air quality, CLT has been tested to determine the level& t. j( o2 [ E. a( m+ J$ W6 b; N+ M
and safety of the off gassing i ...
. I6 r+ v. j! W& B Y5 O7 W5 s
9 b6 R* w1 ?& v3 F
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。