HYDROGEN PROPERTIES – EN 17124 - HYDROGEN FUEL - PRODUCT SPECIFICATION AND QUALITY ASSURANCE FOR HYDROGEN GAS FILLING STATIONS - PROTON EXCHANGE MEMBRANE (PEM) FUEL CELL APPLICATIONS FOR VEHICLES
This document specifies the quality characteristics of hydrogen fuel dispensed at hydrogen refuelling stations for use in Proton Exchange Membrane (PEM) fuel cell vehicle systems and the corresponding quality assurance aspects to ensure the consistency of the hydrogen fuel. [15]
|
Total share of hydrogen and contaminant gases |
|
|
Minimum pure hydrogen content |
99,97 % |
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Total amount of gases other than hydrogen |
300μmol/mol |
|
Maximum concentrations of individual contaminant gases |
|
|
Water (H2O) |
5 μmol/mol |
|
Total carbohydrates (methan) |
2 μmol/mol |
|
Oxygen (O2) |
5 μmol/mol |
|
Helium (He) |
300 μmol/mol |
|
Total nitrogen (N2) a Argon (Ar) |
100 μmol/mol |
|
Carbon dioxide (CO2) |
2 μmol/mol |
|
Carbon monoxide (CO) |
0,2 μmol/mol |
|
Total sulphur compounds (H2S) |
0,004 μmol/mol |
|
Formaldehyd (HCHO) |
0,01 μmol/mol |
|
Formic acid (HCOOH) |
0,2 μmol/mol |
|
Amoniak (NH3) |
0,1 μmol/mol |
|
Total halides |
0,05 μmol/mol |
|
Maximum particulate concentration |
1 mg/kg |