Ключевые слова:
Gas-supply meters, Diaphragms (mechanical components), Volume flowmeters, Flowmeters, Working range, Flow rates, Pressure, Temperature, Errors, Accuracy, Performance testing, Stability, Instrument cases, Pipe connections, Flanges, Screwed fittings, Dimensions, Strength of materials, Torque, Mechanical testing, Bend testing, Vibration, Vibration testing, Impact testing, Drop tests, Leak tests, Corrosion resistance, Protective coatings, Corrosion tests, Chemical-resistance tests, Adhesion tests, Environmental testing, Electrical resistance, Durability, Endurance testing, Ageing tests, Water-vapour tests, Test equipment, Testing conditions, Marking, Display devices, Certificates of conformity, Battery-powered devices, Electronically-operated devices, Electromagnetic compatibility