NBN EN ISO 7579 : 2010

National foreword
Committees responsible
Foreword
Method
1 Scope
2 Normative references
3 Definition
4 Principle
5 Solvent
6 Apparatus
7 Sampling
8 Procedure
9 Expression of results
10 Test report
Annexes
A Solubility calculations
B Determination of the concentration of the dissolved
    dyestuff using an evaporation apparatus (adapted from
    ISO 1625:1977)
ZA Normative references to international publications with
    their relevant European publications
Tables
A.1 Solubility of a dyestuff which gives a definite
    saturation concentration
A.2 Solubility of a dyestuff which gives an "indefinite"
    saturation concentration
A.3 Solubility of a dyestuff which gives no saturation
    concentration
Figures
A.1 Solubility of a dyestuff which gives a definite
    concentration
A.2 Solubility of a dyestuff which gives an "indefinite"
    saturation concentration
A.3 Solubility of a dyestuff which gives no saturation
    concentration
B.1 Lower glass disc
B.2 Upper glass disc
B.3 Arrangement of discs

Defines a method for determination of the solubility of dyestuffs in organic solvents. Applies to dyestuffs not undergoing chemical change under the influence of the solvent, that are stable and non-volatile under specific drying condition. Suited to concentrations between 1g and 1000g of dyestuff per litre of solvent. Not for use for determining insoluble matter in dyestuff.