Elastomeric seals. Material requirements for pipe joint seals used in water and drainage applications. Vulcanized rubber|Stress relaxation, Drainpipes, Sealing rings, Storage, Potable water, Designations, Vulcanized rubber, Grades (quality), Water absorption, Type testing, Pipes, Hardness, Mechanical testing, Ageing (materials), Chemical-resistance tests, Oil-resistance tests, Compression testing, Dimensional changes, Pipe couplings, Inspection, Test equipment, Elongation at fracture, Synthetic rubber, Tensile strength, Toroidal sealing rings, Marking, Water supply and waste systems (buildings), Thermal testing, Tensile testing, Rainwater pipes, Compression set, Quality assurance, Drainage, Seals, Ozone, Sewers, Pipelines, Elastomers, Strength of materials, Natural rubber, Test specimens