Interesting question, Colin. It’s not my field, but if the kit currently being offered either claims compliance with the standard but doesn’t comply, or it complies with the standard but wouldn’t work for other reasons (e.g. poor quality control), then I would suggest that there is a strong case for Third Party Certification.
TPC only usually takes off if there are large, influential users who are minded to add the requirement to their own specifications. The key, therefore, is to identify the main potential users/purchasers of the kit. If we’re expecting deaf people themselves to buy the kit, then TPC will not be an issue – choice will be cost-driven. If, however, large users would be inclined to buy the kit (local authorities? Universities?) then they may be persuaded to add TPC to their specs. I know that the RNID sell equipment for deaf people - I wonder if they would consider endorsing a scheme of some description?
In any case, the effort required to ‘market’ TPC to potential users could be substantial. The obvious beneficiaries of the certification are the certification bodies (LPC, Certifire, BM TRADA etc), who, provided that they are convinced there is a market, may be persuaded to devote the resources necessary both to put the scheme’s technical requirements together and to get the requirement into the specifications. Over to you, LPC et al!
James Whittaker