CLASSIFICATION
He-Helium
Keywords:
Category:
High Purity Gas
Hotline:
He-Helium
Introduction:
Helium is a highly inert gas found in nature in limited quantities. It is colorless, odorless, non-flammable and non-toxic. Liquid Helium is the coldest known substance. Special transportation and storage equipment is required for minimizing losses of product.
Application:
Helium is the second element in the periodic table and owing to it’s non-flammable nature and lightweight, replaces Hydrogen in the metrological applications. It is a critical element in many applications and is used in numerous other applications in line with it’s highly inert and stable characteristics. Major applications are as under:
Common applications include:
◆ Cooling of magnet used in MRI machines
◆ Balloon inflation
◆ Leak detection
◆ Electronics
◆ Breathing mixtures for divers
Supply options:
◆ Cylinders
◆ Dewars
Gas specification:
|
Inspection Item |
Unit |
Purity |
|
Helium |
% |
99.999 |
|
O2 |
ppmv |
≤1.0 |
|
N2 |
ppmv |
≤2.0 |
|
CO2 |
ppmv |
≤0.5 |
|
CO |
ppmv |
≤0.5 |
|
CO2+CO |
ppmv |
|
|
CH4 |
ppmv |
≤0.5 |
|
Water |
ppmv |
≤3.0 |
|
H2 |
ppmv |
≤1.0 |
|
Ne |
ppmv |
≤4.0 |
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