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These test methods cover the physical testing of joint treatment materials such as joint compound, paper joint tape, glass-mesh joint tape, and an assembly of joint compound and paper joint tape. These materials are used in gypsum board construction. The test methods are detailed for the following: joint compound tests—for viscosity, shrinkage, check cracking, and putrefaction; joint tape tests—for tensile strength, width, and thickness; paper joint tape tests—for dimensional stability; assemblages of paper joint tape and joint compound—for bond of paper joint tape to joint compound and cracking of joint compound at tape edges; and glass-mesh joint tape test—for skewness.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1.1 Joint treatment materials are specified in Specification C475/C475M.
1.1.2 The joint treatment material described in this standard are for use with gypsum board installed in accordance with Specification C840.
Joint Compound Tests:
Joint Tape Tests:
Paper Joint Tape Tests
Assemblages of Paper Joint Tape and Joint Compound:
Bond of Paper Joint Tape to Joint Compound
Cracking of Joint Compound at Tape Edges
Glass-Mesh Joint Tape Test
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in brackets are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C472 Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete
C475/C475M Specification for Joint Compound and Joint Tape for Finishing Gypsum Board
C840 Specification for Application and Finishing of Gypsum Board
C1396/C1396M Specification for Gypsum Board
D685 Practice for Conditioning Paper and Paper Products for Testing
D828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
D3699 Specification for Kerosine
D3882 Test Method for Bow and Skew in Woven and Knitted Fabrics
E100 Specification for ASTM Hydrometers
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
TAPPI StandardT 411 Thickness (Caliper) of Paper, Paperboard, and Combined Board Available from Technical Association of the Pulp and Paper Industry, Technology Park, P.O. Box 105113, Atlanta, GA 30348.
ICS Number Code 91.060.10 (Walls. Partitions. Facades); 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30161509(Gypsum board)
ASTM C474-13, Standard Test Methods for Joint Treatment Materials for Gypsum Board Construction, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top