6 [1 q2 U* I! [5 EFor indoor air quality, CLT has been tested to determine the level / {/ d2 n' c9 Z+ kand safety of the off gassing it produces. CLT glue lines were tested for 6 Y: j% ]% [4 d3 D' N" Q% Vvolatile organic compounds (VOCs), including formaldehyde emissions.2 h o. M: {" L/ N
The VOCs as measured in a series of tests were found to be roughly one7 q M" X% H8 Q& \
parts per billion (ppb), well under the standard of 50 ppb deemed to be / `: m: z& Y' R7 ia health hazard./ _; K5 Y- V0 l, G
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source:" g0 o" H$ B4 m$ h. ^4 s* S9 T: a' r CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA 7 J3 o- s! W9 Fhttp://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29- k) N# R2 [8 k% c0 \
For indoor air quality, CLT has been tested to determine the level: |0 e6 `' \' E
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。
东湖珞珈 发表于 2016-5-19 00:352 h z9 r! Z' |( \7 n5 J, {" v
除了他说的那些传统隔热方法外,现在还流行框架做好了之后喷射泡沫剂,凝固之后就成了一道隔热层,从天花 ...
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室内和室外用的材料是不一样的,室内用的是聚酰胺,这种东西稳定无毒。以前冰箱用的白色的泡沫是有致癌的东西放出来的。国内好像还在大量的应用,这边好像很难见到了,但在包装材料上还可以见到。。不过我个人始终对有机材料有怀疑,聚酰胺只不过结构更为稳定罢了,理论上应该还是有挥发的,只不过可能在现在仪器检测下限。另外FDA或官方机构的东西也不能全信,三聚氰胺就是FDA认为无毒的东西。我个人对有氮的有机化学物质和苯环类的东西始终用畏惧感。哈哈哈,我知道这不是科学的精神。
石工 发表于 2016-6-3 05:290 p3 [# S: K# a
For indoor air quality, CLT has been tested to determine the level& Y2 ?7 o m' J" v& ?
and safety of the off gassing i ...
0 X0 D7 \( a$ Y0 F - S* [! j. u' W# Q) l, z60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。