This Flexible Hoses Standard has been prepared and published by BSRIA on behalf of the Hose Manufacturers and Suppliers Association (HMSA). Provides details of a manufacturing standard for hose assemblies up to 25mm nominal bore, incorporating rubber, plastic or flexible metallic hose for the connection of closed-circuit heating and cooling equipment using water-based fluids. Topics covered include materials and construction, dimensions, performance requirements, quality control, and information to be provided.