Quality requirements for fuel
OPM 320 en-GB
65
©
Scania CV AB 2019, Sweden
Other quality requirements
With normal cubic metres (Nm
3
), gas is assessed
at the following temperature and pressure:
T = 273.15 K, p = 101.325 kPa.
Requirements
Value
Natural gas
Biogas
Supply pressure to gas regula-
tor
1
1. The values also apply at full load. Lower values may be permitted if they have first been approved by Scania. If lower values are used,
the maximum output is reduced.
20-35 mbar (0.3-0.5 psi)
20-35 mbar (0.3-0.5 psi)
Fuel temperature
10-40°C (50-104°F)
Max. water content
A maximum of 60 per cent relative humidity at the lowest fuel temperature.
There is no water, other visible impurities or condensation.
Max. sulphur content (H
2
S)
40 mg/Nm
3
Max. sulphur content (total)
150 mg/Nm
3
Max. ammonia content
20 mg/Nm
3
Max. halide pollution content
65 mg/Nm
3
Max. hydrogen content
12% (v/v)
Max. siloxane content
1 mg/Nm
3
5 mg/Nm
3
Max. particle quantity
10 mg/Nm
3
Max. particle size
5
μ
(filtration with 99% cleaning above 5
μ
is recommended)
Max. fluctuation speed in gas
pressure
5 mbar/30 s (0.07 psi/30 s)
Max fluctuation speed in calorif-
ic value
1% Ch4/30 s
0.5% Ch4/30 s
