1.1 This specification covers the material commercially known as basic carbonate white lead, used as a pigment and in putty. The pigment may be purchased in the dry form or as a paste in oil. 1.2 The values stated in This specification covers basic carbonate white lead used as a pigment and in putty. The pigments may be in dry form or a paste in oil. Dry pigment shall conform to the required contents of lead carbonate, moisture and other volatile matter, impurities