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ASTM C61/C61M-00

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Standard Specification for Gypsum Keene's Cement

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1.1 This specification covers various grades of anhydrous calcined gypsum known as gypsum Keene's cement, designed for use in the base and finish coats of gypsum plaster.

Note 1-The setting time is accelerated by the addition of other materials. Note 2-Keene's cements are generally available as quick-setting and standard-setting types. However, various grades of gypsum Keene's cement of different fineness and setting time are available. Grades intended for use in Scagiola castings and other special purposes should conform to the requirements of this specification in all respects except fineness and setting time.

1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units in parentheses are for information purposes only.

1.3 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the specification.

1.4 The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number C61
Publication Date July 10, 2000
Language en - English
Page Count 3
Revision Level 00
Supercedes
Committee C11.01
Publish Date Document Id Type View
July 10, 2000 C0061_C0061M-00 Revision
June 1, 2020 C0061_C0061M-00R20 Reaffirmation
Oct. 1, 2015 C0061_C0061M-00R15 Reaffirmation
May 1, 2011 C0061_C0061M-00R11 Reaffirmation
May 1, 2006 C0061_C0061M-00R06 Reaffirmation