Descriptors | Safety devices, Portable, Electrically-operated devices, Calibration, Inspection, Signal devices, Performance testing, Gas detectors, Alarm systems, Working range, Fixed, Safety measures, Temporary, Personnel, Occupational safety, Selection, Explosive atmospheres, Flammable atmospheres, Training, Oxygen, Environment (working), Detectors, Testing conditions, Permanent, Fire safety, Installation, Gases, Industrial, Vapours, Maintenance, Instructions for use, Protected electrical equipment |