ISO 731-2:1977
Withdrawn
Formic acid for industrial use — Methods of test — Part 2: Determination of total acidity — Titrimetric method
Hardcopy , PDF
English, French
02-01-1977
02-28-2019
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.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NFT 20 680 : 83 FD | Identical |
| NBN T 04 002 : 1983 | Identical |
| DIN 71550:1979-07 | Similar to |
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