Excellent article!! Basically a free spectrophotometer. If you made control solutions you could nail it down even more...Though I don't think you need to unless you're an absolutist.
Bravo! Very well done! Would it be reasonable to say there is a grey area where hobbyists who are not color blind could benefit from this? For example the pinks/purples of nitrate kits are difficult to determine color differences with. Could this methodology be used to make the colors read more accurately?
Excellent article - I wouldn't have thought about it - I would also suggest (didnt see it in the article - but I only skimmed it - since I'm not color blind - there are non - colorimetric tests also ( i.e. machines (Hanna) - that can read the results. Very well described though - and detailed on your part
Great idea! I'm sure that many other readers will also see the benefit of this technology. You could easily work this in to an inexpensive Alk monitor and doser, I may just make one and see how it works out. Thanks for posting this information.
This is a trailblazing article for me. It is a carefully written account about a useful innovation. There is enough information here for me to install this approach at home and improve on it if I want. This invention seems like it could be used to compare colors on chart to a test solution and interpolate between color patches. The interpolation will require some code though. Thank you for sharing.