Argon Purity Levels
These are typical purity levels and certified gases are available along with many other grades and pressures to fit your requirements.
Welding / Industrial Grade
minimum purity 99.995%, Max Moisture 10ppm
High Purity 4.8
min purity 99.998%, max H2O 3 ppm, max O2 5 ppm
Zero Grade 4.8
min purity 99.998%, THC < 5 ppm
Ultra High Purity 5.0
min purity 99.999%, O2 < 1 ppm; H20 < 3 ppm, THC < 0.5 ppm, N2 < 4 ppm
Research 6.0
min purity 99.9999%, O2 < 0.2 ppm; H20 < 1 ppm, THC < 0.1 ppm, N2 < 1 ppm
Argon
Argon (Ar) is a noble gas that comprises 0.93 percent of the earth's atmosphere. (Noble gases are a group of rare gases that include argon, helium, krypton, neon, xenon and sometimes radon. They exhibit great stability and extremely low reaction rates. Also called inert gases.)
Colorless, odorless, tasteless and nontoxic, Argon forms no known chemical compounds. A specific gravity of 1.38 makes argon 25 percent heavier than air making argon an asphyxiation danger in low or confined areas.
Argon is used primarily for applications such as arc welding, analytic equipment, steel making, heat-treating and electronics manufacturing.
