ISO 1389-6:1977
$11.05
Phthalic anhydride for industrial use — Methods of test — Part 6: Determination of phthalic anhydride content — Titrimetric method
| Published By | Publication Date | Number of Pages |
| ISO | 1977-02 | 4 |
The principle consists in the dissolution of a test portion in an excess of standard volumetric sodium hydroxide solution and back-titration of the excess with a standard volumetric hydrochloric acid solution using phenolphthalein as indicator. – ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.
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