OK, I see that. There is something really screwy about that page. First it lists the concentrations tested with a 1 ppm, 3 ppm, and 20 ppm, but then gives results for 3, 10 and 20. Second it lists Aspergillus niger as a test organism, but that does not show up in the results. Then the table, which looks like the normal way of presenting findings like these in which the table shows number of surviving colonies, but under it they say to interpret it as the amount of reduction in the colonies. Then at the bottom they say "At least 99.9% reduction (veg. Bacteria)/90.0% reduction (molds) within 7 days. Ref: CTFA 1993 Sect. 13 pp 1-2", which seems to correspond with with the normal interpretation of the graph, not their "HOW TO READ THIS LAB TEST" section.
If indeed they are looking at a reduction of 130 for example from the initial 750,000 initial population, would leave 5800 colonies, which would I believe not be possible to count on a 3" dish. It seems much more likely they are using the industry standard of giving the number of remaining colonies as 130. Since they quote the industry standard in their summary at the bottom, I would expect that they would be following it throughout the report. Lastly the tests I had run by UT in 1999 gave results in line with the standard interpretation of the table, not their "HOW TO READ" note which inverts the results. I am going to try and contact the company and seek clarification. I have a feeling that many of the comments were added by the company having the test done, instead of Hawkeye-Jensen. Marshall Robert Berger wrote: > Marshall, you did not read far enough down the page. Here is the quote > from: > "HOW TO READ THIS LAB TEST" "The results show and compare how much > each test organism was reduced in each product (3,10,20 and 1.0%) in a > 24 hour period." "Starting with approximately a 750,000 population of > each organism, the 3ppp reduced the EColi 130 times, the 10ppm less > than ten times, the 20ppm 50 times and the 1.0% Germaben II less than > 10." Any other questons??? "Ole Bob"
