DIN EN ISO 14896:2009
Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO 14896:2009); English version of DIN EN ISO 14896:2009-07

Standard No.

DIN EN ISO 14896:2009

Release Date

2009

Published By

German Institute for Standardization

Status

Be replaced

Replace By

DIN EN ISO 14896:2009-07

Latest

DIN EN ISO 14896:2009-07

Replace

DIN EN ISO 14896:2002 DIN EN ISO 14896:2008

Scope

This International 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.

DIN EN ISO 14896:2009 Referenced Document

• ISO 14898:1999 Plastics - Aromatic isocyanates for use in the production of polyurethane - Determination of acidity
• ISO 3696 Water for analytical laboratory use; Specification and test methods
• ISO 385 Laboratory glassware - Burettes
• ISO 4787 Laboratory glass and plastic ware — Volumetric instruments — Methods for testing of capacity and for use*， 2021-11-22 Update
• ISO 4788 Laboratory glassware - Graduated measuring cylinders
• ISO 6353-1 Reagents for chemical analysis; Part 1 : General test methods
• ISO 6353-2 Reagents for chemical analysis — Part 2: Specifications — First series — Addendum 2
• ISO 6353-3 Reagents for chemical analysis; Part 3 : Specifications; Second series
• ISO 648 Laboratory glassware - Single-volume pipettes

DIN EN ISO 14896:2009 history

• 2009 DIN EN ISO 14896:2009-07 Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO 14896:2009); German version EN ISO 14896:2009
• 2009 DIN EN ISO 14896:2009 Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO 14896:2009); English version of DIN EN ISO 14896:2009-07
• 0000 DIN EN ISO 14896:2008
• 0000 DIN EN ISO 14896:2002

DIN EN ISO 14896:2009 Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO 14896:2009); English version of DIN EN ISO 14896:2009-07 was changed to EN 14081-1:2016 Timber structures - Strength graded structural timber with rectangular cross section - Part 1: General requirements.