ASTM C843-99e1

Standard Specification for Application of Gypsum Veneer Plaster

SCOPE
1.1 This specification covers the minimum requirements for and methods of applying gypsum veneer plaster.
1.2 Where a specific degree of fire resistance is required for veneer plaster systems, applicable building code regulations shall be followed.
1.2.1 Details of construction for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories.
1.3 Where a specific degree of sound control is required for veneer plaster assemblies and constructions, details of construction shall be in compliance with official reports of tests conducted in recognized sound testing laboratories in accordance with the applicable sound tests of Test Methods E 90, C 423, or E 492.
Note 1—To ensure desirable results, coordinate this specification with Specification C 844.
Note 2—General information regarding matters of a contractual nature concerning veneer plaster work is found in Appendix X1. Additional technical information related to veneer plastering is provided in Appendix X2.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.

General Information

• Status: Historical
• Publication Date: 09-Oct-1999
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.03 - Specifications for the Application of Gypsum and Other Products in Assemblies

Relations

• Replaces: ASTM C843-99 - Standard Specification for Application of Gypsum Veneer Plaster
• Effective Date: 10-Oct-1999
• Replaced By: ASTM C843-99(2006) - Standard Specification for Application of Gypsum Veneer Plaster
• Effective Date: 01-May-2006
• Referred By: ASTM C587-04(2018) - Standard Specification for Gypsum Veneer Plaster
• Effective Date: 10-Oct-1999
• Referred By: ASTM C11-23 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
• Effective Date: 10-Oct-1999

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
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Designation: C 843 – 99
Standard Specification for
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Application of Gypsum Veneer Plaster
This standard is issued under the fixed designation C 843; 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.
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e NOTE—11.2 was editorially corrected May 2003.
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1. Scope * ing Materials and Systems
C 423 Test Method for Sound Absorption and Sound Ab-
1.1 This specification covers the minimum requirements for
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sorption Coefficients by the Reverberation Room Method
and methods of applying gypsum veneer plaster.
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C 587 Specification for Gypsum Veneer Plaster
1.2 Where a specific degree of fire resistance is required for
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C 588 Specification for Gypsum Base for Veneer Plasters
veneer plaster systems, applicable building code regulations
C 631 Specification for Bonding Compounds for Interior
shall be followed.
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Gypsum Plastering
1.2.1 Details of construction for a specific assembly to
C 844 Specification for Application of Gypsum Base to
achieve the required fire resistance shall be obtained from
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Receive Gypsum Veneer Plaster
reports of fire-resistance tests, engineering evaluations, or
C 1047 Specification for Accessories for Gypsum Wall-
listings from recognized fire testing laboratories.
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board and Gypsum Veneer Base
1.3 Where a specific degree of sound control is required for
E 90 Test Method for Laboratory Measurement ofAirborne
veneer plaster assemblies and constructions, details of con-
Sound Transmission Loss of Building Partitions and Ele-
struction shall be in compliance with official reports of tests
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ments
conducted in recognized sound testing laboratories in accor-
E 492 Test Method for Laboratory Measurement of Impact
dance with the applicable sound tests of Test Methods E 90,
Sound Transmission Through Floor-Ceiling Assemblies
C 423, or E 492.
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Using the Tapping Machine
NOTE 1—To ensure desirable results, coordinate this specification with
Specification C 844.
3. Terminology
NOTE 2—General information regarding matters of a contractual nature
3.1 Definitions:
concerning veneer plaster work is found in Appendix X1. Additional
3.1.1 See Terminology C 11.
technical information related to veneer plastering is provided inAppendix
3.2 Definitions of Terms Specific to This Standard:
X2.
3.2.1 base coat, n—veneer plaster trowel or machine ap-
1.4 The values stated in inch-pound units are to be regarded
plied as the first coat of a two-component system.
as the standard. The values given in parentheses are for
3.2.2 finish coat, n—veneer finish plaster trowel or machine
information only.
applied as the second coat over the base coat plaster in a
1.5 The text of this specification references notes and
two-component system.
footnotes which provide explanatory material. These notes and
3.2.2.1 smooth-trowel finish, n—afinishresultingfromsteel
footnotes (excluding those in tables and figures) shall not be
troweling with a minimum of water after the plaster has
considered as requirements of the specification.
become firm.Asmooth finish free of trowel marks, blemishes,
or other imperfections.
2. Referenced Documents
3.2.2.2 texture finish, n—a finish resulting from (1) trowel
2.1 ASTM Standards:
applicationfollowedbyfloatingortexturingofthesurfacewith
C 11 Terminology Relating to Gypsum and Related Build-
any of a variety of tools using a minimum of water or (2)
machine application, left as applied or followed by hand
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texturing.
This specification is under the jurisdiction of ASTM Committee C11 on
Gypsum and Related Building Materials and Systems and is the direct responsibility
of Subcommittee C11.03 on Specifications for Application of Gypsum and Other
Products in Assemblies.
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Current edition approved Oct. 10, 1999. Published January 2000. Originally Annual Book of ASTM Standards, Vol 04.01.
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published as C 843 – 76. Last previous edition C 843 – 98. Annual Book of ASTM Standards, Vol 04.06.
*ASummary of Changes section appears at the end of this standard.
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C 843–99
3.2.3 joint-reinforcing embedment, n—the cementitious ma- 7.6 Accessories—Specification C 1047.
terial used to embed the strip material that is compatible with
the veneer plaster used.
8. Surface Preparation
3.2.4 one-component system, n—a veneer plaster system
8.1 Examination—Carefullyexamineallsurfaces,including
designed for application directly over approved bases in a
but not limited
...