"Tom Burton" schreef in bericht news: snipped-for-privacy@mid.individual.net...
Hello,
I give them to my spare parts distributor, he has his contact and gets it done, I paid 5 and 25 euros for two different labs. The test is checking for common chemical elements - I think with a spectrum analyser or something like that. They also do water and glycol tests, and when asked, for 30 euros, they do a microscopic examination as well. They give their expert opinion over what could cause differing levels of contents for each substance in the test.
Thanks for your interest,
Peter