ISO 1389-6:1977
Withdrawn
Phthalic anhydride for industrial use — Methods of test — Part 6: Determination of phthalic anhydride content — Titrimetric method
Hardcopy , PDF
English, French
02-01-1977
02-19-2019
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.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NFT 20 743 : 1967 | Similar to |
| NBN T 04 216 : 1983 | Identical |
| UNE 70105-6:1985 | Similar to |
| UNE 70105-6:1985 | Identical |
| ISO 6796:1981 | Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method |
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