Specification for vitrified clay pipes, fittings and ducts, also flexible mechanical joints for use solely with surface water pipes and fittings|Acid-resistance tests, Diameter, Fluid equipment, Crushing tests, Pressure testing, Spigot-and-socket joints, Pipe couplings, Pipe junctions, Chemical-resistance tests, Sampling methods, Dimensional tolerances, Leak tests, Straightness measurement, Sealing rings, Surface-water drainage, Sewers, Drainpipes, Test equipment, Glazed ceramic ware, Water absorption, Pipes, Deflection tests, Ceramics, Dimensions, Preferred sizes, Pipe fittings, Acceptance inspection, Drainage, Performance, Shear testing, Perforations, Bend testing, Statistical quality control, Ducting, Testing conditions, Mechanical testing, Strength of materials, Bend couplings, Marking, Compressive strength