CAS No.: | 7440-59-7 |
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Formula: | He |
EINECS: | 231-168-5 |
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Product Name | UHP Helium | HP helium | |
Helium | ≥99.9999 | ≥99.999 | |
Impurity(ppm) | Water(H2O) | ≤0.5 | ≤3 |
Oxygen+Argon(O2+Ar) | ≤0.1 | ≤1 | |
Nitrogen(N2) | ≤0.5 | ≤2 | |
Carbon Monoxide(CO) | ≤0.1 | ≤0.5 | |
Carbon dioxide(CO2) | ≤0.1 | ≤0.5 | |
Hydrocarbon(THC) | ≤0.1 | ≤0.5 |