Product Overview
| Property | Value |
|---|---|
| Product Name | Helium He |
| UN Number | UN1046 |
| CAS Number | 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 |
Specifications
| Items | 99.999% | 99.9999% |
|---|---|---|
| He | ≥99.999% | >99.9999% |
| 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.
