ISO 753-3:1983
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Acetic acid for industrial use Methods of test Part 3: Determination of formic acid content Iodometric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-03-2019
English, French
01-10-1983
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Specifies the determination of total reducing matter and of reducing compounds other than formic acid. The principle consists in oxidation of formic acid and other reducing compounds in a test portion with an excess of sodium hypobromit solution. Determination of the excess sodium hypobromite by iodometry. Oxidation of reducing compounds other than formic acid with an excess of potassium bromide-bromate solution in an acid media. Determination of the excess potassium bromide-bromate by iodometry. Determination of the formic acid content from the difference between the two determinations. Is applicable to products having formic acid contents, between 0,02 % (m/m) and 0,35 % (m/m).
| DevelopmentNote |
Supersedes ISO 753 (04/2001)
|
| DocumentType |
Standard
|
| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| NFT 20 630 : 84 FD | Identical |
| NBN T 04 018 : 1985 | Identical |
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