ISO 4315:1977
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Surface active agents — Determination of alkalinity — Titrimetric method
| Published By | Publication Date | Number of Pages |
| ISO | 1977-02 | 4 |
A clear solution of the substance is titrated with a standard volumetric hydrochloric acid solution, in the presence of methyl orange or bromophenol blue as indicator. This method is only applicable when so indicated in the specific standard for each product; in particular, it is not suitable for products containing soaps.
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