Norm

NEN-EN 13999-4:2007+A1:2009 en

Lijmen - Kortstondige methode voor het meten van de emissie eigenschappen van lijmen met weinig of geen oplosmiddel na behandeling - Deel 4: Bepaling van het gehalte aan vluchtige diisocyanaat

49,30

Over deze norm

Status Definitief
Aantal pagina's 11
Gepubliceerd op 01-05-2009
Taal Engels
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 temperature.

Details

ICS-code 83.180
Nederlandse titel Lijmen - Kortstondige methode voor het meten van de emissie eigenschappen van lijmen met weinig of geen oplosmiddel na behandeling - Deel 4: Bepaling van het gehalte aan vluchtige diisocyanaat
Engelse titel Adhesives - Short term method for measuring the emission properties of low-solvent or solvent-free adhesives after application - Part 4: Determination of volatile diisocyanates
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