barnes specialty gases
barnes specialty gases

The Pure Gases

Acetylene Isobutane gas cynlinders
Air Krypton
Ammonia Methane
Argon Methyl Chloride
Boron Trichloride Methyl Fluoride
Boron Trifluoride Methyl Mercaptan
1,3-Butadiene Monomethylamine (MMA)
n-Butane Neon
1-Butene Neopentane (Dimethylpropane)
CIS-2-Butene Nitric Oxide
Carbon Dioxide Nitrogen
Carbon Monoxide Nitrogen Dioxide
Carbonyl Sulfide Nitrogen Trifluoride
Chlorine Nitrous Oxide
Deuterium Octafluoropropane (HC-218)
Dimethyl Ether (DME) Oxygen
Ethane Propane
Ethylene Propylene
Helium Sulfur Dioxide
Hexafluoropropylene Sulfur Hexafluoride
Hydrogen Tetrafluoromethane (HC-14)
Hydrogen Bromide Trimethylamine (TMA)
Hydrogen Chloride Xenon
Hydrogen Sulfide


COC (Certificate of Conformation)
Contains information on the Purity of gas expressed in terms of percentage & Maximum concentration of specified impurities in terms of Parts per Million. Purity is classified in different grades and mentioned in numbers such as 4.5, where 4 before the point represents the number of nines and the 5 after point indicates the last decimal, so 4.5 = 99.995%. The actual concentration of impurities is usually lower than stated.

COA (Certificate of Analysis)
A written document that reports the analytical values obtained and certifies the concentration of the components found in a gas mixture or impurities in a pure gas and the traceability to the Reference Standard Material.

Purity Grades

RESEARCH Min. Purity 99.9999%
ULTRA CARRIER Min. Purity 99.9995%
UHP Min. Purity 99.999%
ZERO Min. Purity 99.995%
PRE-PURIFIED Min. Purity 99.99%