1.1 This specification covers copper powder for use in antifouling paints. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI unit This specification covers metallic copper powder for use in antifouling paints. The pigment shall consist essentially of finely divided copper metal. The copper, and coarse particle shall be tested to meet the requirements prescribed.