ISO 731-2:1977
$11.05
Formic acid for industrial use — Methods of test — Part 2: Determination of total acidity — Titrimetric method
| Published By | Publication Date | Number of Pages |
| ISO | 1977-02 | 4 |
The principle consists in a titration of a test portion with a standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. ISO/R 731 has been subdivised into seven parts. ISO 731/2 replaces clause 3 of ISO Recommendation R 731-1968.
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