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ISO 14896:2006

Plastics -- Polyurethane raw materials -- Determination of isocyanate content

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Kehtetu alates 11.02.2009
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Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
11.02.2009
Põhitekst
06.08.2007
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Põhitekst
Põhitekst
ISO 14896:2000
Parandus
ISO 14896:2000/Cor 1:2005
ISO 14896:2006 specifies two methods for the measurement of the isocyanate content of aromatic isoocyanates used as polyurethane raw materials. Method A is primarily applicable to refined toluene diisocyanate (TDI), methylene-bis-(4-phenylisocyanate) (MDI) and their prepolymers. Method B is applicable to refined, crude or modified isocyanates derived from toluene diisocyanate, methylene-bis-(4-phenylisocyanate) and polymethylene polyphenylisocyanate. It can also be used for isomer mixtures of toluene diisocyanate, methylene-bis-(4-phenylisocyanate) and polymethylene polyphenylisocyanate. Other aromatic isocyanates may be analysed by this method if precautions are taken to verify suitability. It is not applicable to blocked isocyanates.
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