DIN EN 13999-4-2009 粘合剂.低溶剂或无溶剂胶粘剂使用后的排放性能的短期测量方法.第4部分:挥发性二异氰酸酯的测定(包括修改件A1-2009).英文版本DIN 13999-4-2009-08
Adhesives - Short term method for measuring the emission properties of low-solvent or solvent-free adhesives after application - Part 4: Determination of volatile diisocyanates(includes Amendment A1:2009); English version of DIN EN 13999-4:2009-08
This European Standard specifies a procedure for the determination of volatile isocyanates in the exhaust air
of an emission test chamber after application of a low-solvent or solvent-free adhesive as defined in EN 923.
The method is based on chemosorption of volatile isocyanates with 1-(2-methoxyphenyl) piperazine (in the
following: 1-2MP) impregnated filters with subsequent desorption and liquid chromatographic analysis. The
method permits measurement of a wide range of organic compounds containing isocyanate functional groups
(NCO), including isocyanate monomers. For testing of adhesives emissions mainly toluene diisocyanate (TDI)
and methylene bis (4-phenyl isocyanate also known as 4,4-diisocyanato-diphenylmethane or MDI), are of
concern. The method as described in this European Standard can be used for other isocyanates too, such as
isophorone diisocyanate (IPDI) and 1,6-hexamethylene diisocyanate (HDI) - see ISO 16702. Isocyanate
oligomers or prepolymers are not volatile enough to be detected in emission test chambers at room
tem perature.