Hi FandT,
I can't say how old it is, but..... If you go to the end of the PDF, you will notice a series of pictures under "The Process". Then I went to AVAX's, New and YET to be improved WEBSITE. Under the heading "Technology and Products", those same photos/pictures are there pointing out the AVAX Haptenization process. That being the case ... assumptions are that the PDF file is not that old.
JMHO
GLTA
Johnny
PS: To the fine folks at AVAX. You would be doing yourselves a big favor if you would assign someone at the office (or hire it done) to update your website. Also, if you want more good exposure. Get a new Facebook page up and running for the company.