|
Special Gas -> SF6
SF6
Because of the excellent insulation, SF6 is widely used in electrical industries, such as circuit breaker, high-voltage transmission line, CIS, large cable coil, mutual inductor, lightning arrester, electric allocating system and accelerator, wave-guide tube, and V.D. Grave generator, etc.
STANDARD OF SF6
Honghua can provide SF6 with purity of 99.8%, 99.9%, 99.99%. The product quality standard is better than that of IEC-376, ASTMD2472 or GB12022-89.
QUALITY STANDARD FOR SF6
| ITEM |
UNIT |
IEC-376 |
ASTMD
2472 |
COMPANY STANDARD |
| Purity |
% |
≥99.8 |
≥99.8 |
≥99.9 |
≥99.97 |
≥99.99 |
| O+N |
% |
≤0.05 |
≤0.05 |
≤0.028 |
≤0.01 |
≤0.003 |
| CF4 |
% |
≤0.05 |
≤0.05 |
≤0.038 |
≤0.01 |
≤0.01 |
Acidity
(expressed as HF) |
ug/g |
≤0.3 |
≤0.3 |
≤0.1 |
≤0.1 |
≤0.1 |
Hydralysable fluorides
(expressed HF) |
ug/g |
≤1 |
≤1 |
≤0.4 |
≤0.4 |
≤0.2 |
| Moisture |
ug/g |
≤15 |
dew point
≤-50℃ |
≤4 |
≤2 |
≤1 |
| Oil Content |
ug/g |
≤10 |
≤5 |
≤4 |
≤3 |
≤1 |
| Toxicity |
|
pass |
pass |
pass |
pass |
pass |
|
|
