Even if traceable methods did exist for all specifications in ISO 14687, erroneous results could still arise from using an inappropriate sampling approach or choosing the wrong sampling container. Currently the sampling methods used for taking hydrogen gas and particulates from a refuelling station have not been verified to ensure the sample is representative of the hydrogen at the station. Additionally the sampling containers used for transporting the gas and particulate samples to the analytical laboratories must be test.
All deliverables from workpackage 4 of the MetroHyVe project can be found in the table below. All available documents are located in the section DOWNLOADS.
|A4.1.1||Report on a full risk assessment to understand the possible contaminants and issues that would arise from a poorly performed sampling of hydrogen from the refuelling station.||Report||RISE, Air Liquide, FHA, ITM, SINTEF||Dec 2017 (M7)|
|A4.1.6||Short report on a recommendation of the number of purges required to remove moisture and air from the sampling line.||Short report||NPL||Dec 2019 (M31)|
|A4.1.7/4.D7||Good practice guide on effective sampling and transportation of hydrogen from the refuelling station as required by ISO 14687.||Good practice guide||RISE, Air Liquide, NPL, FHA, ITM, SINTEF||Dec 2019 (M31)|
|A4.2.4||Good practice guide providing recommendations for performing particulate sampling at HRSs including recommended pressures, sampling set up, flow rates (including methods for ensuring traceability for this measurement), flow time and calibration for the final particulate measurement.||Good practice guide||NPL, Air Liquide, ITM||May 2020 (M36)|
|A4.3.3||List with a set of the three best sorbent tubes will be chosen by RISE, NPL and VSL for each of the three ‘total’ measurements (halogenated, sulphur and hydrocarbons).||List||RISE, NPL, VSL||Aug 2018 (M15)|
|A4.3.7||Paper providing a conclusion based on results for the suitability of each sorbent tube tested for trapping total halogenated, total hydrocarbons and total sulphur.||Paper||RISE, NPL, VSL||Jun 2019 (M25)|
|A4.4.4||Report on the recovery yields of the impurities during storage in the selected gas vessels and an assessment of risks for interferences.||Report||RISE, NPL, VSL, IFE||Dec 2019 (M31)|
|A4.4.5/4.D8||Good practice guide on the suitability of vessels and gas cylinders for sampling hydrogen as required by ISO 14687||Good practice guide||RISE, IFE, NPL, VSL||Mar 2020 (M34)|
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