I do have access to copies of the relevant British/European standard BS EN 13220 Flow-metering devices for connection to terminal units of medical gas pipeline systems and all of the normative standards associated with it but I don't purport to be an expert in their interpretation. I am aware that many harmonised International (ISO), British (BS) or European (EN) standards are actually equivalent and a device must conform to appropriate standards if it is to be CE marked as such.
Thus I assume ISO 15002 Flow-metering devices for connection to terminal units of medical gas pipeline systems (the standard quoted in Therapy Equipment's literature) has equivalence to BS EN 13220. This big assumption aside, initially, I would be inclined to put my trust in the British Standards Institution ( #086 ) and a certificate of compliance, including a CE mark and notified body number, attached to the Diamond flowmeter, in preference to the alleged comments of a sales engineer or representative of a competitor.
The BS EN 13220 standard seems to indicate that there may be certain aspects of it that are meant to be informative only, for the time being, until special national conditions are withdrawn - awaiting studies. Thus manufacturers' may not even need to comply with certain clauses - even if British Standards are rigorously applied, e.g. gas inlet connector's compliance with BS EN 737 may not necessarily apply. As I said, I'm not purporting to be an expert and I'm making assumptions - those in the know can judge that - my interpretation may be wrong.
Perhaps now Peter Parker has "shot his bolt" and "spun his web" he'll be good enough to let us all know what aspects of non-compliance with the "UK standards" that the Penlon representative was allegedly referring to. I'm certain that Therapy Equipment and their customers would be interested to hear all about it. If such sales practices are going on then I wouldn't want to deal with representatives that have a go at "trashing" other's products rather than push their product's merits. It's really tedious when sales representatives try this approach to sales.
