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The mixture gas of argon and hydrogen is as a protective atmosphere for the heat treatment of certain metals, particularly those which are susceptible to nitriding when treated in a nitrogen-based atmosphere. This includes stainless steels and many different specialized and therefore small-scale applications.
Physical and chemical properties
Physical state: Compressed gas.
Appearance: Colorless.
Odor: Odorless.
Contains gas under pressure; may explode if heated
May displace oxygen and cause rapid suffocation
Use and store only outdoors or in a well ventilated place
Use a back flow preventive device in piping
Use only with equipment rated for cylinder pressure
Close valve after each use and when empty
Store in cool, dry, well-ventilated area of non-combustible construction away from heavily trafficked areas and emergency exits.
Keep at temperatures below 52°C / 125°F.
Cylinders shouldbe stored upright with valve protection cap in place and firmly secured to prevent falling.
Full and empty cylinders should be segregrated.
Use a “first in-first out” inventory system to prevent full cylinders from being stored for excessive periods of time.
Stored containers should be periodically checked for general condition and leakage.
Signal word: Warning