PREN 1568-1 : DRAFT 2016

European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sediment in the foam concentrate
5 Freezing point
6 Viscosity of the foam concentrate
7 pH of the foam concentrate
8 Surface tension of the foam solution
9 Separation test
10 Expansion and drainage of foam
11 Test fire performance
12 Occupational health and ecotoxicological evaluation
13 Technical data sheet
14 Container marking
Annex A (informative) - Grades of foam concentrate
Annex B (normative) - Preliminary sampling of foam
        concentrates
Annex C (normative) - Determination of percentage sediment
Annex D (normative) - Determination of viscosity for
        pseudo-plastic foam concentrates
Annex E (normative) - Temperature conditioning of foam
        concentrates
Annex F (normative) - Determination of surface tension
Annex G (normative) - Determination of expansion and
        drainage time
Annex H (normative) - Determination of test fire
        performance
Annex I (informative) - Description of a radiation measurement
        method
Annex J (normative) - Freezing Point Determination
Annex K (normative) - Stability/Separation test of foam
        concentrate
Annex L (normative) - Occupational health and ecotoxicological
        testing
Annex M (informative) - Example of technical data sheet
Annex N (informative) - A-Deviations
Bibliography

Defines requirements for chemical and physical properties, and minimum performance requirements of medium expansion foams suitable for surface application to water-immiscible liquids.