A guide to foam and foam proportioning equipment – Part 2
Following on from the first article we will now turn our attention to the effects of viscosity on foam proportioning. Viscosity refers to a fluid’s thickness or resistance to deformation. The higher its viscosity, the less is its ability to…
Firefighting foam: let’s get into the flow
Ensuring a successful transition to high viscosity fluorine-free foam concentrates with FM approved proportioners. Fire practitioners should carefully consider all the hardware variables that contribute to their effectiveness. Design standards from authorities such as the National Fire Protection Association (NFPA),…