ASTM_D_3738_-_84_2010.pdf

Designation:D373884(Reapproved 2010)Standard Specification forRubber-Coated Cloth Hospital Sheeting1This standard is issued under the fixed designation D3738;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript 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.Scope1.1 This specification covers rubber-coated cloth sheetingintended for use in the protection of mattresses on hospitalbeds.1.2 The values stated in SI units are to be regarded as thestandard.1.3 The following safety hazards caveat pertains only to thetest methods portion,Section 9,of this specification.Thisstandard does not purport to address all of the safety concerns,if 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.2.Referenced Documents2.1 ASTM Standards:2D573 Test Method for RubberDeterioration in an AirOvenD751 Test Methods for Coated FabricsD3393 Specification for Coated FabricsWaterproofness2.2 U.S.Government Document:3Food and Drug Administration,Code of Federal Regula-tions,Title 21,Part 177 or Part 1823.Ordering Information3.1 Orders for rubber-coated cloth sheeting should specifyin the contract or purchase order the following information:3.1.1 Quantity of cloth per finished roll(6.1),3.1.2 Sample size and frequency for testing(7.1),3.1.3 Certification(11.1),3.1.4 Marking necessity(12.1),and3.1.5 Special packaging(13.1).4.Materials and Manufacture4.1 Materials:4.1.1 The base cloth shall be hospital sheeting woven fromcotton yarn,synthetic yarn,or a blend of cotton and syntheticyarn.4.1.2 The coating compound shall be natural rubber,syn-thetic rubber,or a mixture of natural and synthetic rubberssuitably formulated and colored with a white pigment to meetthe requirements of this specification.4.2 ManufactureThe base cloth(4.1.1)shall be coateduniformly on both sides with equal amounts of the coatingcompound(4.1.2).The coated fabric may be dusted with a talcthat does not support mildew growth.The coated cloth shall bevulcanized to meet the physical requirements of Table 1 andthe chemical requirements specified in this specification.5.Chemical Requirements5.1 Resistance to Phenol and Isopropyl AlcoholCoatedcloth shall show no evidence of softening,tackiness,harden-ing,peeling,or blistering when subjected to a 5%phenol-water solution and a 70%isopropyl alcohol-water solution inaccordance with 9.7 and 9.8.5.2 Steam SterilizationCoated cloth shall show no evi-dence of softening,tackiness,hardening,peeling,or blisteringwhen subjected to steam sterilization in accordance with 9.10.6.Length of Roll6.1 Unless otherwise specified in the contract or purchaseorder,cloth shall be furnished in rolls,55 m(60 yd)of cloth perroll.The roll shall contain no more than three pieces and nopiece shall be less than 5.5 m(6 yd)in length.7.Workmanship,Finish,and Appearance7.1 Coated cloth shall not have any of the following defects:7.1.1 Cuts,tears,or holes(including pinholes).7.1.1.1 Pinholes shall be detected by holding the 3-m(3-yd)samples(8.1)in front of an illuminated bulb(60 W minimum)while examining the entire area for the defects described in 7.1.7.1.2 Uncoated areas.7.1.3 Thinly coated areas.1This specification is under the jurisdiction ofASTM Committee D11 on Rubberand is the direct responsibility of Subcommittee D11.37 on Coated Fabrics,RubberThreads and Seals.Current edition approved May 1,2010.Published December 2010.Originallyapproved in 1978.Last previous edition approved in 2004 as D3738 84(2004).DOI:10.1520/D3738-84R10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.1.4 Separation of cloth from coating.7.1.5 Cracked coating.7.1.6 Lumps or blisters.7.1.7 Color,not white and uniform.7.1.8 Curled or rolled edges.7.1.9 Dirt,spots,or stains.7.1.10 Offensive odor.7.1.10.1 Normal aromatic odors usually associated withcured-rubber coatings shall not be classified as offensive.Compounding materials shall be permitted in accordance withCode of Federal Regulations,Title 21,Food and Drug Admin-istration Part 177,indirect food additions,polymers or Part182Substances Generally Recognized as Safe(GRAS)andthat meet the extraction requirements of Section 77.2600Rubber Articles Intended for Repeated Use.8.Sampling8.1 Unle