ASTM Committee C07 on Lime was formed in 1912. C07 meets twice a year, usually in June and December, with approximately 25 members attending two days of technical meetings. The Committee, with a membership of approximately 70, currently has jurisdiction of 23 standards, published in September in the Annual Book of ASTM Standards, Volume 04.01. C07 has 7 subcommittees that maintain jurisdiction over these standards. Information on the subcommittee structure and C07's portfolio of approved standards and work items are available from the List of Subcommittees, Standards and Work Items below. These standards have and continue to play a preeminent role in all aspects important to the industry of lime and lime products, including quicklime, hydrated lime, and limestone.