Foam analysis is essential for evaluating the quality, performance, and stability of firefighting foam concentrates and premix solutions used onboard vessels. Regular testing ensures compliance with IMO guidelines, manufacturer specifications, and safety regulations, maintaining effective fire suppression capability in case of onboard emergencies.
Typical testing involves checking physical properties, expansion ratio, drainage time, pH, and contamination levels to ensure that the foam retains its extinguishing efficiency.
| S NO. | TEST PARAMETERS | METHOD |
|---|---|---|
| 1 | Appearance | Visual |
| 2 | Viscosity @25°C | ASTM D445 |
| 3 | pH @20°C | ISO 7203 |
| 4 | Sediments content by Extraction | MSC. 1/Circ. 1312 |
| 5 | Density @25°C | ASTM D1298 |
| 6 | Stability of Foam | BS 1568-3 |
| 7 | Expansion Ratio | BS 1568-3 |
| 8 | Specific gravity 60/60 °F | ASTM D1298 |
| 9 | 50% draining time | ISO 7203 |
| 10 | Foam concentration | NFPA 16 |
Sample Volume: 2 liters of foam concentrate or premix solution (as applicable) from designated sampling point.
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