Quality Standard:GB/T 12022-2014
Molecular formula:SF6 Molecular weight:146.05 | ||
Item |
National Standard |
Company Standard |
Sulfur Hexafluoride (SF6) (mass fraction)/ 10-2 ≥ |
99.90 |
99.90 |
Air (mass fraction)/10-6 ≤ |
300 |
30 |
Carbon Tetrafluoride (CF4) (mass fraction)/10-6 ≤ |
100 |
3 |
Hexafluoroethane(C2F6) (mass fraction)/10-6 ≤ |
200 |
6 |
Octafluoropropane (C3F8) (mass fraction)/10-6 ≤ |
50 |
3 |
Moisture (H2O) (mass fraction)/10-6 ≤ |
5.0 |
3.0 |
Acidity (as HF)(HF)(mass fraction)/10-6 ≤ |
0.2 |
0.1 |
Hydrolyzable Fluoride (as HF) (HF) (mass fraction)/10-6 ≤ |
1.0 |
0.8 |
Mineral Oil (mass fraction)/10-6 ≤ |
4.0 |
3.0 |
Bioexperiment ≤ |
Non-toxic in bio-test |
Non-toxic in bio-test |
Properties:
Sulphur hexafluoride is liquid under normal temperature and pressure. It’s a colorless, odorless, non-toxic and non-corrosive gas. Its melting point is -50℃, boiling point is -63.8℃, and the density is 6.12g/L(20℃ 0.1MPS). It is an excellent electrical insulator.
Application:
Sulphur hexafluoride is an excellent insert insulating gas widely used in high-voltage electric equipments and ground cables, mainly including electronic equipments, radar, particle accelerator, transformer, lightning arresters, refrigerant etc.
Storage:
In cool, dry and ventilated warehouse.
Transport:
With symbols indicated in GB19-73. The coefficient of the filling cylinders should not be higher than 1.33kg/L.
Packing:
In seamless steel cylinder(40L, 12.5L, 10L, 8L, 4L)(Normally, the pressure is 15MPa, the filling coefficient<1.37kg/L).
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