• Roger Penn

    September 10, 2023 at 14:22

    Cleaning of incoming parts for a fuel cell system or test station should be free of particles, burrs, powders, and anything that can leach out and end up in the stack. In general, suppliers should flush pipes, hoses, fittings, etc. with de-ionized water and cap so that no new contamination is introduced during transport.

    One standard I have seen reference to in the past is ASTM G93 – this isn’t directly for fuel cells but is applicable as it covers standard practice for cleaning methods and cleanliness levels for material and equipment used in oxygen enriched environments (which also don’t like hydrocarbons, just like fuel cells). There may be other (EU or global) standards also.

    Kind regards, Roger

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