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Homepage>BS EN ISO 14896:2009 Plastics. Polyurethane raw materials. Determination of isocyanate content
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sklademVydáno: 2009-09-30
BS EN ISO 14896:2009 Plastics. Polyurethane raw materials. Determination of isocyanate content

BS EN ISO 14896:2009

Plastics. Polyurethane raw materials. Determination of isocyanate content

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Označení normy:BS EN ISO 14896:2009
Počet stran:16
Vydáno:2009-09-30
ISBN:978 0 580 65655 2
Status:Standard
DESCRIPTION

BS EN ISO 14896:2009


This standard BS EN ISO 14896:2009 Plastics. Polyurethane raw materials. Determination of isocyanate content is classified in these ICS categories:
  • 83.080.10 Thermosetting materials

This lnternational Standard specifies two methods for the measurement of the isocyanate content of aromatic isocyanates 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.