Virgin SF6 gas quality by preparation

From used to new

Thanks to the combination of several DILO preparation units, we can also process extremely poor qualities to SF6 with a purity of > 99.9 %. This not only exceeds Reuse standards, but "DILO Certified Gas" even exceeds the relevant specifications for new gas.

Quality level after preparation

Substance DILO Quality"Certified Gas" IEC 60376:2018* (New gas) ASTM D2472-15
SF6 > 99,9 Vol.%(> 99,99 wt%) > 98,5 Vol.% ≥ 99,8 wt%
H2O ≤ 8 µl/l < 200 µl/l ≤ 8 ul/l
Frost point (100 kPa) ≤ -62 °C -36 °C -62 °C
Total acidity (HF equiv.) < 0,1 µl/l < 7 µl/l ≤ 0,3 ppmw
Air < 500 µl/l < 10.000 µl/l ≤ 500 ppmw (≙ 2500 µl/l)
CF4 < 500 µl/l < 4.000 µl/l ≤ 500 ppmw (≙ 830 µl/l)
Oil mist < 1 mg/kg < 10 mg/kg
SO2 < 0,1 µl/l

*For use in mixtures with N2/CF4 a purity of SF6 of 99.7 % by volume is recommended.
µl/l = ppmv; mg/kg = ppmw, wt% =  percentage by weight

Contact: certified-gas(at)dilo-gmbh(dot)com