EN 1568-3:2018

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 of foam concentrate
10 Determination of expansion and drainage time
11 Test fire performance
12 Evaluation of aqueous film formation
13 Occupational health and ecotoxicological
   information
14 Technical data sheet
15 Container marking
Annex A (informative) - Grades of foam concentrate
        and performance
Annex B (normative) - 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) - Small scale fire test
Annex J (normative) - Description of a radiation
        measurement method
Annex K (normative) - Freezing point determination
Annex L (informative) - Evaluation of film formation
Annex M (informative) - Stability/Separation test of foam
        concentrate
Annex N (normative) - Occupational health and
        ecotoxicological testing
Annex O (informative) - Example for a technical
        data sheet
Annex P (informative) - A-Deviations
Bibliography

This European Standard specifies requirements for chemical and physical properties, and minimum performance requirements of low expansion foams suitable for surface application to water-immiscible liquids. Requirements are also given for marking.WARNING - Any type approval according to this standard is invalidated by any change in composition of the approved product.Some concentrates conforming to this part of EN 1568 can also conform to other parts and therefore can also be suitable for application as medium and/or high expansion foams, and for application at low expansion to water-miscible liquids.