ISO 14897:2000被替代
Plastics - Polyols for use in the production of polyurethane - Determination of water content
出版：International Organization for Standardization
专家解读视频
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 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 over amperometric methods.
BS ISO 14897:2000 - Identical
