tailieunhanh - Designation: C 59/C 59M – 00 - Gypsum Casting Plaster and Gypsum Molding Plaster1

This standard is issued under the fixed designation C 59/C 59M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. | Designation C 59 C 59M - 00 Standard Specification for Gypsum Casting Plaster and Gypsum Molding Plaster1 This standard is issued under the fixed ds ii r atic n c 5S C 59M the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope This specification covers gypsum casting plasscr and gypsum molding plaster materials consisting essentially of calcined gypsum. The values stated in either inch-pound or SI metric units are to be regarded as standard. Within the text the SI units are shown in brackets. The values stated in each system shall be used independently of the other. Values from the two systems shall not be combined. The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the standard. 2. Referenced Documents ASTM Standards C 11 Terminology Relating to Gypsum and Related Building Materials and Systems2 C 471 Test Methods for Chemical Analysis of Gypsum and Gypsum Products2 C 472 Test Methods for Physical Testing of Gypsum Gypsum Plasters and Gypsum Concrete2 E 11 Specification for WircsClolh and Sics CS for Tcsúng Purposes3 3. Terminology Defimtions of terms shall be in accordance wiili Tenm-nology C 11. Description of Terms Specific to This Standard gypsum casting plaster n a calcined gypsum plaseer used primarily to form objects such as lamp bases art ware and novelties etc. gypsum molding plaster n a ina icne d gypsum plaseer used primarily for plaster casts or molds sometimes used as a gauging plaster. 4. Chemical Composition Gypsum casting plaster and gypsum molding plaster 1 This .