ISO 753-5:1981
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 5: Determination of total acetaldehyde content Titrimetric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-03-2019
English, French
01-10-1981
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The method specified consists in heating a test portion in an acid medium to depolymerize any to paraldehyde present and to entrain, by distillation, both regenerated acetaldehyde and the monomeric acetaldehyde originally present. Reaction of the acetaldehyde in the distillate with an excess of sodium hydrogen sulphite solution. Iodometric titration of the residual sodium hydrogen sulphite solution. The method is applicable to products having total acetaldehyde contents equal to or greater than 0,004 % (m/m). It has also been approved by the International Union of Pure and Applied Chemistry (IUPAC). ISO 753/1 to iso 753/11 cancel and replace ISO Recommendation R 753-1968.
| DevelopmentNote |
Supersedes ISO 753 (04/2001)
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| NBN T 04 020 : 1983 | Identical |
| NFT 20 630 : 84 FD | Identical |
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