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Glavni meni

ISO 14897:2023

Plastics — Polyols for use in the production of polyurethanes — Determination of water content
22. 6. 2023.

Опште информације

60.60     22. 6. 2023.

ISO

ISO/TC 61/SC 12

Međunarodni standard

83.080.10  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 14897:2002

TRENUTNO

OBJAVLJEN
ISO 14897:2023
60.60 Standard objavljen
22. 6. 2023.