Pamphlets

1947 ASTM Standards. The 1947 compilation of American Society for Testing Materials Standards on Electrical Insulating Materials is 580 pages, and gives in latest form the 90 specifications and tests covering a wide range of materials in this field. In addition to these standards there is an appendix discussing the significance of tests of these materials, and information on the scope and personnel of ASTM Committee D-9 which sponsors the publication. A detailed index completes the book which is available in paper cover from ASTM Headquarters, 1916 Race Street, Philadelphia 3, Pa., $4.