Leak test medium for pressurized systems, help to find leaks in gas and compressed air, also has a special rust protection, suitable for compressed air, refrigerants, acetylene, butane, natural gas, carbon dioxide, oxygen, propane, town gas, nitrogen, hydrogen, ammonia pipes and containers under pressure, e.g. on compressors, steel cylinders, fittings, shut-off valves, breathing apparatus, oxy-fuel and inert gas welding equipment, Bunsen burners, valves, screw connections, compressed air brakes, etc. technical characteristics: non-toxic according to DIN-DVGW