NFPA 1150-1999 Standard on Fire-Fighting Foam Chemicals for Class A Fuels in Rural, Suburban, and Vegetated Areas

NFPA 1150-1999 Standard on Fire-Fighting Foam Chemicals for Class A Fuels in Rural, Suburban, and Vegetated Areas. 2-1* Foam Concentrate. 2-1.1* Health, Safety, and Environmental Considerations. 2-1.1.1 Mammalian Toxicity. The foam concentrate shall not exceed the toxicity limits defined in Table 2-1.1.1 when tested in accordance with 3-2.1. 2-1.1.2 Aquatic Toxicity. The foam concentrate shall be tested in accordance with 3-2.2. The LC 50 of rainbow trout shall be greater than 10 mg/L when measured after 96 hours of exposure. 2-1.1.3* Biodegradability. The foam concentrate shall be tested in accordance with 3-2.3. A minimum of 60 percent bio- degradation shall be obtained within 42 days. 2-1.1.4 Flash Point. The foam concentrate shall not exhibit a flash point below 140°F (60°C) when tested in accordance with 3-2.4. 2-1.1.5 Documentation. On request, the manufacturer shall provide a product data sheet (PDS), which summarizes the results of testing described in Section 3-2, and a copy of a current material safety data sheet (MSDS). 2-1.2 Physical Properties. 2-1.2.1* Stability. Foam concentrate shall be tested in accor- dance with 3-3.1. The foam concentrate shall not be stratified, crystallized, or otherwise separated when the test is com- pleted. In addition, expansion and drain time shall be deter- mined in accordance with 3-3.7, using foam solution prepared from the stored concentrate samples. The values for fresh and stored concentrates shall differ by no more than ±15 percent expansion and ±2 minutes drain time. 2-1.2.2 Viscosity. The viscosity of the concentrate shall be mea- sured as described in 3-3.2 at temperatures of 35°F, 70°F, and 120°F ± 2°F (2°C, 21°C, and 49°C ± 1°C). The viscosity values obtained shall be reported on the product data sheet. 2-1.3* Corrosion and Materials Compatibility. 2-1.3.1 Uniform Corrosion. The foam concentrate shall not exhibit values that exceed those specified in Table 2-1.3.1 when tested in accordance with 3-4.1. 2-1.3.2* Compatibility with Nonmetallic Materials. The effects of foam concentrate on the hardness and volume of nonmetal- lic materials shall be tested in accordance with 3-4.3. The degree of change in hardness and the volume of the test piece shall be reported on the product data sheet. The following non- metallic materials shall be subject to testing: (1) PVC plastic (2) MIL-S-8802 sealant (3) MIL-S-81733 sealant (4) Neoprene rubber AMS (SAE Aerospace Materials Speci- fication) 3208 synthetic rubber chloroprene 45-55 (5) Fiberglass with epoxy resin (6) Cross-linked polyethylene MIL-C-38359A (7) High-density polyethylene MIL-P-51431A (8)...