Norm

ISO 6387:1983 en

Surface active agents - Determination of the power to disperse calcium soap - Acidimetric method (Modified Schoenfeldt method)

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Gepubliceerd op 01-02-1983
Taal Engels
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.

Details

ICS-code 71.100.40
Nederlandse titel Surface active agents - Determination of the power to disperse calcium soap - Acidimetric method (Modified Schoenfeldt method)
Engelse titel Surface active agents - Determination of the power to disperse calcium soap - Acidimetric method (Modified Schoenfeldt method)

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