ISO 2122:1972
Current
The latest, up-to-date edition.
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
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English, French
01-06-1972
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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.
| Committee |
ISO/TC 47
|
| DevelopmentNote |
Also numbered as BS 6092-6(1981) (09/2005)
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| UNE 55621:1981 | Identical |
| NBN T 03 238 : 1980 | Identical |
| PN ISO 2122 : 2000 | Identical |
| ISO 1692:1976 | Sodium and potassium silicates for industrial use — Determination of total alkalinity — Titrimetric method |
| ISO 2124:1972 | Sodium and potassium silicates for industrial use Determination of silica content Titrimetric method |
| ISO 1686:1976 | Sodium and potassium silicates for industrial use — Samples and methods of test — General |
| ISO 1690:1976 | Sodium and potassium silicates for industrial use — Determination of silica content — Gravimetric method by insolubilization |
| ISO 1691:1976 | Sodium and potassium silicates for industrial use — Determination of carbonates content — Gas-volumetric method |
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