Aktívna norma | Vydaná: 22.06.2023

ISO 14897:2023-ed.3.0

Plastics — Polyols for use in the production of polyurethanes — Determination of water content
(Plastiques — Polyols destinés a la production de polyuréthanes — Dosage de l´eau)

Dostupné jazyky: Anglicky

Dostupné prevedenie: Elektronické PDF, Tlačené

od 87.20 EUR zobraziť na eshopu

Podrobné informácie

Označenie: ISO 14897:2023-ed.3.0

Dátum vydania: 22.06.2023

Stránok: 10

Krajina: Medzinárodná technická norma

Kde kúpiť?

Môžete zakúpiť na eshop.normservis.sk

Anotácia

Description / Abstract: 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.

Populárna vydavatelia

celý katalóg