1、Designation:B81900(Reapproved 2011)Standard Specification forSeamless Copper Tube for Medical Gas Systems1This standard is issued under the fixed designation B819;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revis
2、ion.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification establishes the requirements for twowall thickness schedules of specially cleaned,straight lengthsof seamless cop
3、per tube,identified as Types K and L,suitablefor medical gas systems.The tube shall be installed inconformance with the requirements of the National FireProtection Association(NFPA)Standard 99,Gas and VacuumSystems(NFPA)Standard 99C,Standard for Hypobaric Facili-ties(NFPA)Standard 99B,and Canadian S
4、tandards Associa-tion(CSA)Standard Z 305.1 Z 7396.1,Nonflammable Medi-cal Gas Piping Systems.NOTE1Types K and L tube are defined in Specification B88.NOTE2Drawn temper tube is suitable for use with capillary(solderjoint)fittings for brazing.1.2 The values stated in inch-pound units are to be regarde
5、das standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3The following safety hazard caveat pertains only to thetest method portion of Section 12 of this specification.Thisstandard does not purport t
6、o 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.22.Referenced Documents2.1 ASTM Standards:3B88 Specific
7、ation for Seamless Copper Water TubeB251 Specification for General Requirements for WroughtSeamless Copper and Copper-Alloy TubeB280 Specification for Seamless Copper Tube for Air Con-ditioning and Refrigeration Field ServiceB601 Classification for Temper Designations for Copper andCopper AlloysWrou
8、ght and CastB846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE53 Test Method for Determi
9、nation of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopperAlloys(Photometric Methods)(Withdrawn 2010)4E243 Practice for Electromagnetic(Eddy Current)Examina-tion of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper and Copper Alloys forth
10、e Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 Other Standards:National Fire Protection Association(NFPA)99,Gas andVacuum Systems(NFPA)99C and Standard for Hypo-baric Facilities(NFPA)99B5Compressed GasAssociation(CGA)G-4.1,
11、Cleaning Equip-ment for Oxygen Service6Canadian Standards Association(CSA)Z 305.1 Z 7396.1,Nonflammable Medical Gas Piping Systems73.Terminology3.1 For definitions of terms related to copper and copperalloys,refer to Terminology B846.3.2 Definitions of Terms Specific to This Standard:3.2.1 lengthsst
12、raight pieces of the product.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct.1,2011.Published March 2012.Originallyapproved in 1992.Last previous edition
13、 approved in 2006 as B819 00(2006).DOI:10.1520/B0819-00R11.2The UNS system for copper and copper alloys(see Practice E527)is a simpleexpansion of the former standard system accomplished by the addition of a prefix“C”and a suffix“00”.The suffix can be used to accommodate composition variationof the b
14、ase alloy.3For 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.4The last approved version of this historical standard i
15、s referenced onwww.astm.org.5Available from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,Massachusetts 02269,http:/www.nfpa.org.6Available from Compressed Gas Association,14501 George Carter Way,Suite103,Chantilly VA 20151-2923,http:/.7Available from Canadian Standards Associ
16、ation(CSA),5060 Spectrum Way,Suite 100 Mississauga,Ontario Canada,L4W 5N6,http:/www.csa.ca.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2 standarduniform lengths established as commercialstandards.3.2.3 tube,copper watera seamless copper tube conform-ing to the particular dimensions commercially known asCopper Water Tube and designated as Types K and L(see Table1)
