ISO 1983:1977
Withdrawn
Nitric acid for industrial use — Determination of sulphated ash — Gravimetric method
Hardcopy , PDF
English, French
11-01-1977
05-10-2019
The principle of the method consists inevaporation of a test portion in a platinum dish, conversion of the residue to sulphates by treatment with sulphuric acid; ignition in an electric furnace, controlled at (800 +- 25) °C, and weighing. Replaces ISO Recommendation R 1983-1971.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NBN T 03 039 : 1979 | Identical |
| BS 4367:1968 | Similar to |
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