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For indoor air quality, CLT has been tested to determine the level " X! O2 Z0 Z2 s$ t8 q! ~" F) J& ~and safety of the off gassing it produces. CLT glue lines were tested for 7 S, r9 K% N: F( H" x$ u* gvolatile organic compounds (VOCs), including formaldehyde emissions." H. w5 p4 d( e& d5 ]4 e; |& ^
The VOCs as measured in a series of tests were found to be roughly one ! {9 I" B2 H' Z& Zparts per billion (ppb), well under the standard of 50 ppb deemed to be ( t. x- T4 m# h0 m+ [a health hazard. $ N; L8 Y2 O% g: \3 h8 ] $ y/ b' C- n4 Q- lsource:1 }4 C9 E9 W) C) e CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA - e$ M5 f A" Y% T, V7 Yhttp://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 3 V& h* d4 W- m/ T3 \' Z+ WFor indoor air quality, CLT has been tested to determine the level " |# s9 a% Y- g0 I3 |5 N! G: Pand 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。
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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 05:29 & p) w4 [/ w7 m2 X4 \$ @' d$ h4 AFor indoor air quality, CLT has been tested to determine the level 8 V z- p# ` b, x: {9 y6 Iand safety of the off gassing i ...