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ASTM-C61:2006 Edition

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C61/C61M-00(2006) Standard Specification for Gypsum Keene’s Cement

Published By Publication Date Number of Pages
ASTM 2006 3
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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 1The setting time is accelerated by the addition of other materials. 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 scagliola 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 either inch-pound or SI (metric) units are to be regarded separately 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.

1.3 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.

The following safety hazards caveat pertains only to the test method in the appendix 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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
Chemical Composition
Physical Properties
Sampling
2 Inspection
Rejection
Certification
Packaging and Marking
Keywords
X1. FIELD TEST FOR GYPSUM KEENE’S CEMENT
X1.1 Scope
X1.2 Significance and Use
X1.3 Procedure
X1.4 Interpretation of Results
X1.5 Precision and Bias
ASTM-C61
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