ASTM C960 C960M-2001 Standard Specification for Predecorated Gypsum Board.pdf

1、Designation: C 960/C 960M 01Standard Specification forPredecorated Gypsum Board1This standard is issued under the fixed designation C 960/C 960M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number i

2、n 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.1. Scope *1.1 This specification covers predecorated gypsum boardwhich is

3、 designed to be used as the finished surface for wallsor ceilings.NOTE 1Specification C 840 contains application procedures for pre-decorated gypsum board.1.2 The values stated in inch-pound units are to be regardedseparately as the standard. Within the text, the SI units areshown in brackets. The v

4、alues stated in each system shall beused independent of the other. Values from the two systemsshall not be combined.1.3 The following safety hazards caveat pertains only to thetest method portion, Section 10 of this specification: Thisstandard does not purport to address all of the safety concerns,i

5、f any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.1.4 The text of this specification references notes andfootnotes that provide explanatory m

6、aterial. These notes andfootnotes (excluding those in tables and figures) shall not beconsidered as requirements of the standard.2. Referenced Documents2.1 ASTM Standards:C 11 Terminology Relating to Gypsum and Related Build-ing Materials and Systems2C 36/C 36M Specification for Gypsum Wallboard2C 6

7、45 Specification for Non-Load Bearing (Axial) SteelStuds, Runners (Tracks), and Rigid Furring Channels forScrew Application of Gypsum Board2C 840 Specification for Application and Finishing of Gyp-sum Board2C 1264 Specification for Sampling, Inspection, Rejection,Certification, Packaging, Marking, S

8、hipping, Handling andStorage of Gypsum Board2E 84 Test Method for Surface Burning Characteristics ofBuilding Materials3E 119 Test Methods for Fire Tests of Building Constructionand Materials33. Terminology3.1 Definitions of terms shall be in accordance with Termi-nology C 11.3.2 Definitions of Terms

9、 Specific to This Standard:3.2.1 face, nthe surface of the predecorated gypsumwallboard that is called the finish side.4. Classification4.1 Predecorated gypsum board is furnished in two classesas follows:4.1.1 Class I predecorated gypsum board shall have adecorative sheet or film laminated to the pa

10、per surface.4.1.2 Class II predecorated gypsum board shall have adecorative coating applied to the paper surface.5. Materials and Manufacture5.1 Predecorated gypsum board shall consist of a noncom-bustible core, essentially gypsum, surfaced with paper bondedto the core with the face covered with a d

11、ecorative sheet, film,or coating.5.2 Predecorated gypsum board, type X (special fire resis-tant) designates predecorated gypsum board complying withthis specification that provides not less than 1 h fire-resistancefor boards58 in. 15.9 mm thick or34 h fire-resistance forboards12 in. 12.7 mm thick, a

12、pplied parallel with and on eachside of load bearing 2 3 4 wood studs spaced 16 in. 406 mmon center with 6d coated nails, 178 in. 48 mm long, 0.0915 in.2.32 mm diameter shank,14 in. 6.4 mm diameter heads,spaced 7 in. 178 mm on center with wallboard jointsstaggered 16 in. 406 mm on each side of the p

13、artition andtested in accordance with the requirements of Test MethodsE 119.NOTE 2Consult producers for independent test data on assemblydetails and fire-resistance classifications for other types of construction.See fire test reports or listings from recognized fire testing laboratories forassembly

14、 particulars, materials, and classifications.1This specification is under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is the direct responsibilityof Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products.Current edition approved

15、May 10, 2001. Published August 2001. Originallypublished as C 960 81. Last previous edition C 960/C 960M 97.2Annual Book of ASTM Standards, Vol 04.01.3Annual Book of ASTM Standards, Vol 04.07.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Ha

16、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.NOTICE: This standard has either been superceded and replaced by a new version or discontinued. Contact ASTM International (www.astm.org) for the latest information. Copyright by ASTM Intl (all rights reserved); Fri Mar 27 02:4

17、4:33 EDT 2009Downloaded/printed byGuo Dehua (CNIS) pursuant to License Agreement. No further reproductions authorized.6. Physical Properties6.1 Flexural strength, humidified deflection, core, end andedge hardness, and nail pull resistance shall be in accordancewith Specification C 36.6.2 No part of

18、the test surface shall be disturbed where ClassI predecorated gypsum board is tested by the pick (tape) testdescribed in Section 10.7. Dimensions and Tolerances7.1 After decoration, thickness, width, length and endsquareness shall be in accordance with Specification C 36.7.1.1 Where decorative coati

19、ng, sheet or film thicker than0.020 in. 0.508 mm is used, the dimension specification shallbe waived when specified in the purchase order.7.2 Edges and Ends The edges and ends shall be straight.Edges shall be either square or featured.8. Finish and Appearance8.1 The surfaces of predecorated gypsum b

20、oard shall be trueand free from imperfections that would render it unfit for use.9. Sampling, Inspection, Rejection, Certification,Packaging, Marking, Shipping, Handling and Storage9.1 Sampling, inspection, rejection, certification, packaging,marking, shipping, handling, and storage shall be in acco

21、r-dance with Specification C 1264.9.2 When required by the purchaser, the flame spread index,as tested in accordance with Test Method E 84, shall be legiblymarked on each board, package, or pallet.10. Test Method for Pick Resistance10.1 Significance and Use:10.1.1 This test method provides a procedu

22、re for measuringthe adhesion and integrity of the decorative sheet or filmlaminated to the paper surface.10.2 Sampling and Test Specimens:10.2.1 Obtain samples in accordance with Section 9.10.2.2 Prepare test specimens by cutting or marking fullsheets of predecorated gypsum board into not less than2

23、4 3 24 in. 600 3 600 mm areas. Prepare not less than twospecimens from each sheet of gypsum board in the sample.10.3 Procedure:10.3.1 Apply a12to916 in. 12.7 to 14.3 mm wide strip oftransparent adhesive tape4approximately 3 in. 76 mm inlength to the test specimen face, leaving 1 in. 25 mm free.Press

24、 the tape firmly to the test specimen face using thumbpressure for not less than 5 s. Grasp the free end of the tape andpull quickly at a 90 angle.10.3.2 Number of Tests Test not less than six specimens,three in the machine direction and three perpendicular to themachine direction.10.4 Precision and

25、 BiasPrecision and bias of this testmethod have not been determined.11. Keywords11.1 ceiling; gypsum; partitions; predecorated gypsumboard; predecorated gypsum board; type X; wallAPPENDIX(Nonmandatory Information)This Appendix gives general information and also suggestions for inclusions to be made

26、elsewhere by the specifier. They are not part of thisspecification.The definition of type X as given in 5.2 and the alternate definition given in this appendix are intended only as a test to define the gypsumboard as meeting the requirements of type X. These tests do not indicate a preferred applica

27、tion nor do they limit the use of the product inother fire-rated assemblies.All gypsum panel products for which type X is defined, except gypsum lath and gypsum shaftliner board, use the same test for type Xproducts, therefore, the type X definition indicates a consistent level of fire resistance.X1

28、. ALTERNATE DEFINITION FOR TYPE XX1.1 Predecorated gypsum board, type X (special fire-resistant) designates predecorated gypsum board providing agreater fire resistance than regular predecorated gypsum boardof the same thickness. Type X (special fire-resistant) predeco-rated gypsum board, when teste

29、d in accordance with TestMethods E 119, shall provide the following minimum fireresistance for the assemblies described:X1.1.1 One hour for a58-in. 15.9-mm thickness applied toa partition in a single layer application on each side of 358-in.92-mm deep non-loadbearing galvanized steel studs comply-in

30、g with Specification C 645, spaced 24 in. 610 mm oncenter. The58-in. 15.9-mm thick predecorated gypsum board48 in. 1220 mm wide shall be attached using 1-in. 25-mmlong drywall screws spaced 8 in. 203 mm on center along theedges and ends, and 12 in. 305 mm along intermediate studs.All joints shall be

31、 oriented parallel to and located over studsand staggered on opposite sides of the assembly, andX1.1.2 Two hours for a12-in. 12.7-mm thickness appliedto a partition in a double layer application on each side of212-in. 64-mm deep non-loadbearing galvanized steel studs4“Scotch” brand transparent tape

32、No. 600, manufactured by 3M Co., St. Paul,MN 55101, or equivalent, has been found satisfactory for this purpose.C 960/C 960M2NOTICE: This standard has either been superceded and replaced by a new version or discontinued. Contact ASTM International (www.astm.org) for the latest information. Copyright

33、 by ASTM Intl (all rights reserved); Fri Mar 27 02:44:33 EDT 2009Downloaded/printed byGuo Dehua (CNIS) pursuant to License Agreement. No further reproductions plying with Specification C 645, spaced 24 in. 610 mmon center. The 48-in. 1220-mm wide base layer shall beattached using 1-in. 25-mm long dr

34、ywall screws spaced 12 in.305 mm on center along board edges, ends, and alongintermediate studs. Joints shall be oriented parallel to andlocated over studs and staggered on opposite sides of theassembly. The 48-in. 1220-mm wide face layer shall beattached using 158-in. 41-mm long drywall screws spac

35、ed 12in. 305 mm along board edges, ends and along intermediatestuds. Joints shall be oriented parallel to and located over studs,offset 24 in. 610 mm from the base layer joints, and staggeredon opposite sides of the assembly.SUMMARY OF CHANGESCommittee C11 has identified the location of selected cha

36、nges in this standard since the last issue(C 960/C 960M 97) that may impact the use of this standard.(1) Note 2 was revised.(2) Definition of type X statement was added to theappendix.The American Society for Testing and Materials takes no position respecting the validity of any patent rights assert

37、ed in connectionwith any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any suchpatent rights, and the risk of infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by t

38、he responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters. Your comments will receive careful consi

39、deration at a meeting of the responsibletechnical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make yourviews known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM, 100 Barr Harbor Driv

40、e, PO Box C700, West Conshohocken, PA 19428-2959, United States.Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website (www.astm.o

41、rg).C 960/C 960M3NOTICE: This standard has either been superceded and replaced by a new version or discontinued. Contact ASTM International (www.astm.org) for the latest information. Copyright by ASTM Intl (all rights reserved); Fri Mar 27 02:44:33 EDT 2009Downloaded/printed byGuo Dehua (CNIS) pursuant to License Agreement. No further reproductions authorized.