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download between 0-24 hoursReleased: 1977
ISO 4314:1977
ISO 4314:1977-Surface active agents — Determination of free alkalinity or free acidity — Titrimetric method
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| Standard´s number: | ISO 4314:1977 |
| Pages: | 2 |
| Edition: | 1 |
| Released: | 1977 |
DESCRIPTION
ISO 4314:1977
The determination is carried out in the following way: Titration of an ethanolic or propanolic solution of the product with a standard volumetric potassium hydroxide or hydrochloric acid or sulphuric acid solution whichever is appropriate, in the presence of phenolphthalein as indicator.