This is a totally different situation than Wilhelm. This guy is the co-author of the I * Metric system of longevity testing with Wilhelm. Wilhelm Research does it's tests FOR the corporations that make the printers, inks, and media, while Aardenburg-Imaging.com takes samples from any end user who is a member. Most inks and papers are now showing multiple tests from various members to show you a pattern of stability. A membership is $25.00 a year. It was worth that just to read the data the first time, for me but I submitted a lot of things that hadn't been tested at all, as many others have this year. I was reassured by some samples I had tested and shocked by others.
I have already found out a lot of things about both inks and media that is failing or doing very well. It is way more accurate and specific than Wilhelm. It shows color casts ( I color) that are introduced over time in monochrome, as well as density fade ( I - Tone) and displays the data separately. It also shows how prints change over time according to different levels of illumination - gallery light, museum light, 450 lux, brighter home lighting, etc, etc. It is very specific about what is going on and has actual displayed color or grayscale targets on the site, as the test is in progress. It is way beyond what is suggested by Wilhelm or anyone else. It shows the effect optical brighteners have on various media and how that effects color changes in high values, like skin tones, midtones, etc.
The other advantage is that you can test any media with any inkset combination that the OEM printer companies don't want you to even think about. It is a real education in my opinion. Just read about the procedure on that site. Every once in awhile something really significant comes along in this industry and opens your eyes. This is one of those situations. At this point I don't think he is even breaking even on what it costs to run this outfit, even though it is a pretty significant investment. But hopefully in the future he will have enough members, or corporate support from museums, galleries, and other tech companies that care about all this .
The new Canon inks are now in test and the Z3100 Vivera inks are well represented as are the original Lucia inks Epson K3, and third party inks. What he needs now is some Z3200 samples because of the change in the red channel. All the the media Hanhemuhle, Canson, Epson, HP, Canon,Harmon, Canvas types, etc etc, are in test with different inksets in many situations.
Is this a site you have to pay for?
i always go to www.wilhelm-research.com/
there they tested the z3200 on various papers- a pdf link is below