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Helium He

UN1046

Helium He UN1046
Helium He UN1046
Name：Helium He
Type：UN1046
Product Name: Helium He
UN NO.: UN1046            
CAS NO.: 7440-59-7            
Purity: 99.999%, 99.9999%
Packing: 40L, 44L, 47L, 49L, 50L cylinder (GB, ISO, DOT)
Valve: CGA580
Filling Content: 8m3-10m3/cyl
Items Specifications
He ≥99.999%             ＞99.9999%            
Impurities O2 ≤1.0 ppmv             ≤0.5 ppmv            
H2O ≤1.0 ppmv             ≤0.2 ppmv            
N2              ≤5.0 ppmv             ≤10.0 ppmv            
H2              ≤1.0 ppmv             ≤3.0 ppmv            
Ar ≤1.0 ppmv             ≤2.0 ppmv            
CO ≤1.0 ppmv             ≤0.1 ppmv            
CO2 ≤1.0 ppmv             ≤1.0 ppmv            
THC ≤0.5 ppmv             ≤0.2 ppmv            
Inspection Standard: GB/T 4844-2011


Applications:
· In various analytical instrument applications, most commonly as a carrier gas in gas chromatography
· As a heat transfer material
· In the manufacturing of calibration mixtures
· As a component in laser gas mixtures
· In the semiconductor industry as a carrier/purge gas
· Helium mixtures with hydrocarbons are used in Geiger counters employed for the detection of a, b, g and X-rays
· In mixtures with oxygen as a breathing gas.

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