NEN-ISO 14897
Plastics - Polyols for use in the production of polyurethanes - Determination of water content
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 July 2023 |
| Status: | active |
| Page Count: | 22 |
| ICS Code (Thermosetting materials): | 83.080.10 |
scope:
This document specifies methods used to measure the water content of polyols employed as polyurethane raw materials.
Method A is a manual amperometric method which has been included to better define the principles of the Karl Fischer measurement. Amperometric methods are applicable to a wide range of polyols, including those which have enough colour to obscure a visual end-point. Method B includes an automated amperometric procedure and an automated coulometric procedure.
The coulometric procedure is an absolute method that does not require calibration and gives improved sensitivity compared with amperometric methods.
Document History
NEN-ISO 14897
July 1, 2023
Plastics - Polyols for use in the production of polyurethanes - Determination of water content
This document specifies methods used to measure the water content of polyols employed as polyurethane raw materials.
Method A is a manual amperometric method which has been included to better define...
August 1, 2002
Plastics - Polyols for use in the production of polyurethane - Determination of water content
This International Standard specifies methods used to measure the water content of polyols employed as polyurethane raw materials. Method A is a manual amperometric method which has been included to...
October 1, 2000
Plastics - Polyols for use in the production of polyurethane - Determination of water content
Specifies test methods used to measure the water content of polyols employed as polyurethane raw materials.