ISO 6387:1983
Surface active agents — Determination of the power to disperse calcium soap — Acidimetric method (Modified Schoenfeldt method)
OVERVIEW
A 0,5 % (m/m) aqueous soap solution is prepared, and after maintaining this at testing temperature for 24 h, an aliquot portion of this solution is taken. This aliquot portion is mixed with a dilute solution of the dispersing agent (surface active agent) and subsequently with a specified volume of water of known calcium hardness. The mixture is maintained for 1 h at the testing temperature and then the calcium soap present in a aliquot portion of the lower layer is titrated with a standard volumetric solution of hydrochloric acid in the presence of bromcresol green as indicator.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1983 |
| No. of Pages | 3 |
| ICS Classification | 71.100.40 Surface active agents |
| Committee | ISO/TC 91 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |