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immediate downloadReleased: 1977
ISO 1983:1977
Nitric acid for industrial use
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| Standard´s number: | ISO 1983:1977 |
| Pages: | 2 |
| Edition: | 1 |
| Released: | 1977 |
| Language: | English |
DESCRIPTION
ISO 1983:1977
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.