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 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.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 14897 |
| Publication Date | Not Available |
| Language | en - English |
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| Committee | ISO/TC 61/SC 12 |