ISO 1389-6:1977
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Phthalic anhydride for industrial use — Methods of test — Part 6: Determination of phthalic anhydride content — Titrimetric method
Hardcopy , PDF
English, French
01-02-1977
19-02-2019
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Withdrawn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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