Hi Jonatben,
Sounds interesting. Do you have a schedule of fees you could post up? I'd be interested to know if any home producers do get their stuff tested and how well it comes up?
Perhaps if you could think of some interesting way to market it to them to encourage them to get it tested, then more might invest in this in order to increase the quality of their processes.
I'm very interested in anything that can increase the quality and the reputation of biodiesel, so I'd be happy to help in whatever way I can with encouraging people to do so.
Perhaps you could initially offer a couple of freebees (or cheapies) to forum members and post the results. That would quickly and tangibly show the importance of proper testing. If people can see the results this way, they are more likely to contact you for more tests.
There's a guy in Sydney who was also offering biodiesel tests (not sure if you know of them already). After I
posted this in the forum last year, I never heard since if anyone had used these services, so I'd be interested in what happens with you.