ASTM C475 C475M-2012 Standard Specification for Joint Compound and Joint Tape for Finishing Gypsum Board 《精修石膏板用添缝混合料和填缝带料标准规格》.pdf
《ASTM C475 C475M-2012 Standard Specification for Joint Compound and Joint Tape for Finishing Gypsum Board 《精修石膏板用添缝混合料和填缝带料标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM C475 C475M-2012 Standard Specification for Joint Compound and Joint Tape for Finishing Gypsum Board 《精修石膏板用添缝混合料和填缝带料标准规格》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C475/C475M 02 (Reapproved 2007) C475/C475M 12Standard Specification forJoint Compound and Joint Tape for Finishing GypsumBoard 1This standard is issued under the fixed designation C475/C475M; the number immediately following the designation indicates the yearof original adoption or, in
2、the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope Scope*
3、1.1 This specification covers all-purpose, taping and finishing joint compounds, paper joint tape and glass-mesh joint tape.1.1.1 The joint materials used in this standard are designed to be used with gypsum board installed in accordance withSpecification C840.1.2 This specification also covers the
4、minimum requirements for an assembly of taping and all-purpose compound and jointtape.1.3 The text of this specification 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 s
5、pecification.1.4 The values stated in either inch-pound or SI (metric) units are to be regarded separately as standard. Within the text, the SIunits are shown in parentheses. The values stated in each system shall be used independent of the other. Values from the twosystems shall not be combined.2.
6、Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related Building Materials and SystemsC474 Test Methods for Joint Treatment Materials for Gypsum Board ConstructionC840 Specification for Application and Finishing of Gypsum BoardD123 Terminology Relating to TextilesD3382
7、 Test Methods for Measurement of Energy and Integrated Charge Transfer Due to Partial Discharges (Corona) UsingBridge TechniquesF1615 Specification for Cautionary Labeling for Five-Gallon Open-Head Plastic Containers3. Terminology3.1 DefinitionsDefinitions shall be in accordance with Terminology C11
8、.3.2 Definitions of Terms Specific to This Standard:3.2.1 glass-mesh joint-tape, na strip of multidirectional glass yarn material designed to reinforce the joint between twogypsum boards.3.2.2 joint tape, na strip of material used to conceal and reinforce the joint between two gypsum boards.3.2.3 jo
9、int tape, self-adhering, na joint tape manufactured to adhere directly to the substrate.3.2.3.1 DiscussionTapes having this quality do not require mechanical or embedment means of attachment to the substrate.1 This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related B
10、uilding Materials and Systems and is the direct responsibility ofSubcommittee C11.02 on Specifications and Test Methods for Accessories and Related Products.Current edition approved June 1, 2007Sept. 1, 2012. Published October 20072012. Originally approved in 1961. Last previous edition approved in
11、20022007 asC475 02.C475/C475M 02 (2007). DOI: 10.1520/C0475_C0475M-02R07.10.1520/C0475_C0475M-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Doc
12、ument Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM
13、recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Bo
14、x C700, West Conshohocken, PA 19428-2959. United States13.2.4 paper joint tape, na strip of paper reinforcing material designed to be embedded in the joint compound and to reinforcethe joint between two gypsum boards.3.2.5 skewness, nas defined in Terminology D123.4. Physical Properties4.1 GeneralTh
15、e physical properties shall be determined in accordance with Test Methods C474, except as noted.4.2 Joint Compounds.4.2.1 Check CrackingNo cracks in the thinner half of the wedge and no deep fissure cracks in the thicker half of the wedge.4.2.2 PutrefactionNo putrefaction in less than 4 days.4.2.3 S
16、hrinkageNot more than 35 % by volume.4.3 Joint TapeTape: The following tests are required of all joint tape:4.3.1 WidthShall be not less than 178 in. (48 mm) nor more than 214 in. (60 mm). The width of an individual roll shall varynot more than 6The following tests are required of all joint tape:132
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