Dangerous goods labelling / SF6 filling quantity

Overview of dangerous goods labelling

According to ADR (= European agreement concerning the international transport of dangerous goods by road), the forwarder is subject to all labelling obligations.

Transport of 600 l pressure gas vessels
When filling 600 l pressure vessels with SF6 or SF6 gas mixtures, please note that the filling quantity depends on the composition of the gas mixture:

Filling quantity:
Filling quantity depending on the SF6 percentage and test pressure (ph) of the pressure vessel

SF6 percentage; residual air Filling degree at 70 bar test pressure [kg/l] Filling degree at 100 bar test pressure [kg/l]
100 % 1,06 1,23
≥ 99,9 % 1,06 1,23
≥ 99,0 % 1,02 1,20
≥ 95,0 % 0,83 1,09
≥ 90,0 % 0,62 0,94
≥ 80,0 % 0,37 0,66
     

Example:
You have a gas mixture with a percentage of 96.2 SF6 and want to fill it into a 600 l pressure vessel with a test pressure of 70 bar.

Maximum filling degree: 0.83 kg/l

Maximum filling quantity = filling degree x Pressure vessel volume
= 0.83 kg/l x 600 l = 498 kg.

It is allowed to fill the pressure vessel with 498 kg SF6/air mixture.
The values of the table are guide values. To determine the exact filling degree, please contact us, stating the percentage actually measured.

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