【国外标准】 Standard Specification for Basic Carbonate White Lead Pigment

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, and coarse particles. Paste in oil and semipaste containing volatile thinner shall also conform to the requirements of pigment, linseed oil, moisture and other volatile matter, and coarse particles and skins of dry pigment. Tests for the following shall be done: coarse particles; moisture in pigment; lead carbonate and total other impurities; and pigment, linseed oil, and moisture and other volatile matter in paste in oil.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 inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.