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ASTM C61

1995 Edition, October 10, 1995

Complete Document

Standard Specification for Gypsum Keene´s Cement



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Superseded By: ASTM C61/C61M

EN
Additional Comments:
W/D S/S BY ASTM C61/C61M
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Product Details:

  • Revision: 1995 Edition, October 10, 1995
  • Published Date: October 10, 1995
  • Status: Superseded By:
  • Superseded By: ASTM C61/C61M
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:



1. Scope *

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.