| http://www.w3.org/ns/prov#value | - Useful are those imidazole derivatives having a mean particle diameter of up to 5 ??m, typically 1 to 5 ??m and a maximum particle diameter of up to 20 ??m, and especially a mean particle diameter of 2 to 5 ??m and a maximum particle diameter of up to 15 ??m.
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