(1) Lime products shall guarantee:
(a) The minimum percent calcium carbonate equivalent.
(b) The minimum percentage passing through #10 and #100 U.S. Standard sieves.
(2) Gypsum or other alkali soil treatment products shall guarantee:
(a) Active ingredient and its percent purity.
(b) The calcium sulfate dihydrate (CaSO4) (2H2O) equivalent expressed as a percentage.
(c) The minimum percent passing through #4 and #40 U.S. Standard sieves.
(3) Other soil amendments shall guarantee:
(a) Active ingredients. The department will accept only active ingredient substances that can be quantitatively determined analytically.
(b) Percent moisture.
(c) The percent organic matter if organic matter is claimed.
(d) The department may allow a soil amending ingredient to be listed or guaranteed on the label or labeling if satisfactory supportive data is provided to the department to substantiate the value and usefulness of the soil amending ingredients. The department may rely on outside sources for assistance in evaluating the data submitted.