AS N23 – Copper preparations for agricultural fungicides
Specifies physical properties, chemical composition, and sampling requirements for fungicides in which copper is the sole active ingredient, in four classifications – copper dusts for seed treatment, copper dusts for foliage treatment, copper sulphate, and other copper preparations for fungicidal sprays. Appendices give methods for determination of copper, fineness, and suspension properties, and a test for water-soluble copper.
