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Astm c840 pdf free, May 1, 2020 – Standard Specification for Application and Finishing of Gypsum Board

The astm c840 pdf free download covers the minimum requirements for the methods of application and finishing of gypsum board, including related items and accessories.

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.

Where this specification is more stringent (size or thickness of framing: size and spacing of fasteners) than the fire-rated construction, this specification shall govern.

Where sound control is required for a gypsum board assembly, details of construction shall be in accordance with reports of acoustical tests of assemblies that have met the required acoustical values.

Unheated spaces above gypsum board ceilings shall be properly ventilated (see Appendix X2).

The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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.

The following precautionary caveat pertains only to Sections 6 – 26. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.For specific precautionary statements, see 4.1.1, 4.1.2, and 24.5.

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

*A Summary of Changes section appears at the end of this standard

Table of content ASTM c840 Pdf free download

1. Scope

1.1 This specification covers the minimum requirements for the methods of application and finishing of gypsum board, including related items and accessories.

1.2 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.

1.2.1 Where this specification is more stringent (size or thickness of framing: size and spacing of fasteners) than the fire-rated construction, this specification shall govern.

1.3 Where sound control is required for a gypsum board assembly, details of construction shall be in accordance with reports of acoustical tests of assemblies that have met the required acoustical values.

1.4 Unheated spaces above gypsum board ceilings shall be properly ventilated (see Appendix X2).

1.5 The various application systems are located in the following sections:

IApplication of Single-ply Gypsum Board to Wood Framing Members8
IIApplication of Two-ply Gypsum Board to Wood Framing Members9
IIIApplication of Gypsum Board by Adhesive Nail-on to Wood Framing
     Members
10
IVSemi-solid Gypsum Board Partitions11
VSolid Gypsum Board Partitions12
VIApplication of Gypsum Board with Adhesives to Interior Masonry or
     Concrete Walls
13
VIIApplication of Gypsum Board to Rigid Foam Insulation14
VIIIApplication of Gypsum Board to Steel Framing and Furring15
IXArches and Bending Radii16
XApplication of Gypsum Board to Receive Tile by Adhesive Application17
XIExterior Application of Gypsum Wallboard and Exterior Gypsum Soffit
     Board
18
XIIFloating Interior Angles19
XIIIControl (Expansion) Joints20
XIVFoil-backed Gypsum Board21
XVApplication of Vinyl Faced Gypsum Board22

1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.7 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.

1.8 The following precautionary caveat pertains only to Sections 6 – 26. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

For specific precautionary statements, see 4.1.1, 4.1.2, and 24.5.

1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


2. Referenced Documents (purchase separately) 

ASTM Standards

C11 Terminology Relating to Gypsum and Related Building Materials and Systems

C475/C475M Specification for Joint Compound and Joint Tape for Finishing Gypsum Board

C514 Specification for Nails for the Application of Gypsum Board

C557 Specification for Adhesives for Fastening Gypsum Wallboard to Wood Framing

C645 Specification for Nonstructural Steel Framing Members

C754 Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products

C920 Specification for Elastomeric Joint Sealants

C954 Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness

C955 Specification for Cold-Formed Steel Structural Framing Members

C1002 Specification for Steel Self-Piercing Tapping Screws for Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs

C1007 Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related Accessories

C1047 Specification for Accessories for Gypsum Wallboard and Gypsum Veneer Base

C1396/C1396M Specification for Gypsum Board

C1546 Guide for Installation of Gypsum Products in Concealed Radiant Ceiling Heating Systems

E2634 Specification for Flat Wall Insulating Concrete Form (ICF) Systems

U.S. Department of Commerce PublicationPS20 American Softwood Lumber Standard Available from U.S. Government Printing Office, Superintendent of Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://www.access.gpo.gov.

ICS Code

ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

UNSPSC Code

UNSPSC Code 30161509(Gypsum board)

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