Descriptors | Hot-water bottles, Household equipment, Thermoplastic polymers, Polyvinyl chloride, Determination of content, Extraction methods of analysis, Specimen preparation, Testing conditions, Thickness, Thickness measurement, Volume measurement, Performance, Performance testing, Leak tests, Pressure testing, Seams, Tensile strength, Ageing (materials), Creep, Creep testing, Closures, Stoppers, Marking, Instructions for use, Polymers, Plastics, Impurities, Elongation at fracture |