BS ISO 7203-1:1995

1 Scope
2 Normative references
3 Definitions
4 Grades and uses of foam concentrates
5 Tolerance of the foam concentrate to freezing
    and thawing
6 Sediment in the foam concentrate
7 Comparative fluidity of the foam concentrate
8 pH of the foam concentrate
9 Surface tension of the foam solution
10 Interfacial tension between the foam solution and
    cyclohexane
11 Spreading coefficient of the foam solution on
    cyclohexane
12 Expansion and drainage of foam
13 Test fire performance
14 Marking, packaging and specification sheet
Annexes
A Preliminary sampling and conditioning of the foam
    concentrate
B Determination of tolerance to freezing and thawing
    (see clause 5)
C Determination of percentage of sediment (see clause 6)
D Determination of comparative fluidity (see clause 7)
E Determination of surface tension, interfacial tension
    and spreading coefficient (see clauses 9,10 and 11)
F Determination of expansion and drainage time (see
    clause 12)
G Determination of test fire performance (see clause 13)
H Description of a radiation measurement method
J Compatibility
K Typical anticipated performance for various types
    of foam concentrate

Defines the essential properties and performance of liquid foam concentrates for low expansion foams for control, extinction and inhibition of reignition of fires of water-immiscible liquids, and specifies minimum performance on test fires.