| Descriptors |
Test specimens, Natural rubber, Strength of materials, Elastomers, Pipelines, Sewers, Ozone, Seals, 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, Thermal testing, Tensile testing, Rainwater pipes, Compression set, Quality assurance, Drainage
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