PREN 1568-2 : 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 Stability/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 concentrates
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 (normative) - Freezing point determination
Annex J (normative) - Stability/Separation test of foam concentrate
Annex K (normative) - Occupational health and ecotoxicological
        testing
Annex L (informative) - Technical data sheet
Annex M (informative) - A-Deviations
Bibliography

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