Hydrogen refueling stations (HRS) must be tested and approved on site before initial operation. With a specially developed and approved device (FSTM - Fueling Station Test Module), ZSW offers the acceptance of passenger car-HRS according to DIN EN 17127 (Guidelines for H2 Refueling Technology and Quality Assurance), which is mandatory in Germany.
DIN EN 17127 requires functional testing of the globally standardized refueling protocols according to SAE J2601 based on the test procedures of the international guideline ISO 19880-1. For this purpose, ZSW works closely with its partners H2-Mobility and CEP (Clean Energy Partnership). If required, the FSTM can also be used to take hydrogen samples on the high-pressure and low-pressure sides of the FSTM's installed vehicle tanks.
The tests are performed by qualified ZSW employees who are appointed as competent persons according to "BetrSichV" in the fields of explosion protection and pressure equipment. In addition, the employees are comprehensively qualified in the "permit-to-work" safety system, which was developed primarily by Shell but is also recognized by other service station operators, and are certified as Permit Holder and Permit Issuer.
Acceptance tests at HighFlow hydrogen filling stations for commercial vehicles with H2 tank capacities over 10 kg are not yet possible. Projects to expand the FSTM for these tests are underway.
The development of the FSTM was funded by the Baden-Württemberg Ministry for the Environment, Climate and Energy Management via the Karlsruhe project management organization.