Cookies
We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
ISO 1690:1976
Sodium and potassium silicates for industrial use — Determination of silica content — Gravimetric method by insolubilization
Automatically translated name:
Sodium and potassium silicates for industrial use -- Determination of silica content -- Gravimetric method by insolubilization
STANDARD published on 1.2.1976
The information about the standard:
Designation standards: ISO 1690:1976
Publication date standards: 1.2.1976
SKU: NS-427343
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 1690:1976 :
Description / Abstract: The procedure is based on evaporation to dryness of a test portion previously acidified with hydrochloric acid. Dissolution of the soluble salts, filtration and washing of the insoluble matter. Second evaporation of the filtrate and washings under the same conditions, further dissolution of the soluble salts, filtration and washing. Calcination and weighing of the two lots of insoluble matter simultaneously. Volatilization of silica by heating with hydrofluoric and sulphuric acids and weighing of the residue after calcination. The*difference in mass represents the silica present in the test portion.
We recommend:
Updating of laws
Do you want to be sure about the validity of used regulations?
We offer you a solution so that you could use valid and updated legislative regulations.
Would you like to get more information? Look at this page.
