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SRPS ISO 2122:2014

Sodium and potassium silicates for industrial use — Preparation of solution of products not easily soluble in boiling water and determination of matter insoluble in water

Feb 28, 2014

General information

90.93     Oct 20, 2023

90.20    Oct 15, 2028

ISS

H047

International Standard

71.060.50  

English  

Plan za 2013. godinu.

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Scope

The method is applicable to products corresponding to the general formula M2O . xSiO2, where the values of x lie between 1,5 and 3,5 in the case of sodium silicates and 1,9 and 3,9 in the case of potassium silicates. Because of the difficulty ancountered in dissolving fine particles of these products, the sample is first sieved to remove these fines. The procedure consists in dissolution of the test portion in carbon dioxide-free water, by treatment in an autoclave. Filtration and weighing of the insoluble matter on a tared filter crucible. Dilution of the filtrate to a given volume, from which aliquot samples are taken in order to carry out the different determinations.

Life cycle

PREVIOUSLY

WITHDRAWN
SRPS H.B8.310:1974

NOW

PUBLISHED
SRPS ISO 2122:2014
90.93 Standard confirmed
Oct 20, 2023

Related project

Adopted from ISO 2122:1972