1、Designation: B 819 00 (Reapproved 2006)Standard Specification forSeamless Copper Tube for Medical Gas Systems1This standard is issued under the fixed designation B 819; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 lengths
3、of seamless copper 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) S
4、tandard 99B, and Canadian Standards Associa-tion (CSA) Standard Z 305.1/Z 7396.1, Nonflammable Medi-cal Gas Piping Systems.NOTE 1Types K and L tube are defined in Specification B88.NOTE 2Drawn temper tube is suitable for use with capillary (solderjoint) fittings for brazing.1.2 The values stated in
5、inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units, which are provided for informationonly and are not considered standard.1.3 The following safety hazard caveat pertains only to thetest method portion of Section 12 of this specifi
6、cation. 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.22. Referenced
7、 Documents2.1 ASTM Standards:3B88 Specification for Seamless Copper Water TubeB 251 Specification for General Requirements for WroughtSeamless Copper and Copper-Alloy TubeB 280 Specification for Seamless Copper Tube for AirConditioning and Refrigeration Field ServiceB 601 Classification for Temper D
8、esignations for Copperand Copper AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsE29 Practice for Using Significant Digits in Test
9、 Data toDetermine Conformance with SpecificationsE53 Test Method for Determination of Copper in Unal-loyed Copper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E 243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Copper and Copper-Al
10、loy TubesE 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 527 Practice for Numbering Metals and Alloys (UNS)2.2 Other Standards:National Fire Protection Association (NFPA) 99, Gas andVacuum Systems (NFPA) 99C and Standard for Hy-pobaric Facilities (N
11、FPA) 99B4Compressed Gas Association (CGA) G-4.1, CleaningEquipment for Oxygen Service5Canadian Standards Association (CSA) Z 305.1/Z 7396.1,Nonflammable Medical Gas Piping Systems63. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminology B 846.3.2 Definition
12、s of Terms Specific to This Standard:3.2.1 lengthsstraight pieces of the product.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 asCopperWaterTube and designated asTypes K and
13、L(seeTable1).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 March 15, 2006. Published April 2006. Originallyapproved in 1992. Last previous edition approved
14、 in 2000 as B 819 00.2The UNS system for copper and copper alloys (see Practice E 527) 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 base alloy.3For referenced ASTM s
15、tandards, 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.4Available from National Fire Protection Association (NFPA), 1 BatterymarchPark, Qu
16、incy, MA 02269-9101.5Available from Compressed Gas Association (CGA), 1725 Jefferson DavisHwy., Suite 1004, Arlington, VA 22202-4102.6Available from Canadian Standards Association (CSA), 178 Rexdale Blvd.,Toronto, ON M9W1R3, Canada.1*A Summary of Changes section appears at the end of this standard.C
17、opyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.4 tube, seamlessa tube produced with a continuousperiphery in all stages of the operations.4. Ordering Information4.1 Orders for material under this specification shall includethe fol
18、lowing information:4.1.1 Specification B 81900.4.1.2 Nominal or standard size (Column 1 of Table 1) andwhether Type K or L (Sections 3 and 10),4.1.3 Temper (Sections 7 and 8),4.1.4 Length (see 10.5),4.1.5 Quantity (pieces) of each size and type,4.2 The following options are available and should besp
19、ecified at the time of placing the order when required.4.2.1 Whether tension test determinations are required (Sec-tion 8),4.2.2 Whether the tube shall be charged with dry, oil-freenitrogen during capping, closing, or plugging (see 11.8),4.2.3 Certification, if required (see Section 20), and4.2.4 Mi
20、ll Test Report, if required, (see Section 21).4.2.5 In addition, when material is purchased for agencies ofthe U.S. government, it shall conform to the SupplementaryRequirements as defined herein when specified in the contractor purchase order.5. Materials and Manufacture5.1 MaterialThe materials of
21、 manufacture shall be a castbillet of Copper Alloy UNS C12200 of such purity andsoundness as to be suitable for processing into the productsprescribed herein.5.2 ManufactureThe product shall be manufactured bysuch hot working necessary to convert the billet to a tubularshape and cold worked to the f
22、inished size.6. Chemical Composition6.1 The material shall conform to the following chemicalrequirements of Copper UNS No. C12200:Copper (incl silver), % 99.9 minimumPhosphorous, % 0.015 to 0.0406.2 These specification limits do not preclude the presenceof other elements. Limits for unnamed elements
23、 may beestablished by agreement between the manufacturer or supplierand the purchaser.7. Temper7.1 Seamless copper tube for medical gas systems shall befurnished in the H58 (Drawn General Purpose) temper, asdefined in Practice B 601.8. Mechanical Properties8.1 The tube shall conform to the mechanica
24、l propertyrequirements specified in Table 2 when tested in accordancewith Test Methods E18 and E8, respectively. Tension testdeterminations need not be made except when indicated by thepurchaser at the time of placing the order.Aconvenient methodof indicating that these tests are to be made is to st
25、ate that “TestProcedure T” is required (see 4.2.1). Where agreement on theTABLE 1 Dimensions, Mass, and Tolerances in Diameter and Wall Thickness for Nominal or Standard Copper Water Tube Sizes.(All tolerances are plus and minus except as otherwise indicated)NominalorStandardSize.in.OutsideDiameter,
26、in. (mm)AverageOutsideDiameterATolerances,in. (mm)Wall Thickness and Tolerances, in.Type K Type L Theoretical Mass, lb/ft (kg/m)Wall Thickness Wall Tolerance Thickness Tolerance Type K Type L14 0.375 (9.52) 0.001 (0.025) 0.035 (0.889) 0.0035 (0.089) 0.030 (0.762) 0.003 (0.076) 0.145 (0.216) 0.126 (0
27、.187)38 0.500 (12.7) 0.001 (0.025) 0.049 (1.24) 0.005 (0.13) 0.035 (0.889) 0.004 (0.10) 0.269 (0.400) 0.198 (0.295)12 0.625 (15.9) 0.001 (0.025) 0.049 (1.24) 0.005 (0.13) 0.040 (1.02) 0.004 (0.10) 0.344 (0.512) 0.285 (0.424)58 0.750 (19.1) 0.001 (0.025) 0.049 (1.24) 0.005 (0.13) 0.042 (1.07) 0.004 (
28、0.10) 0.418 (0.622) 0.362 (0.539)34 0.875 (22.3) 0.001 (0.025) 0.065 (1.65) 0.006 (0.15) 0.045 (1.14) 0.004 (0.10) 0.641 (0.954) 0.455 (0.677)1 1.125 (28.6) 0.0015 (0.038) 0.065 (1.65) 0.006 (0.15) 0.050 (1.27) 0.005 (0.13) 0.839 (1.25) 0.655 (0.975)114 1.375 (34.9) 0.0015 (0.038) 0.065 (1.65) 0.006
29、 (0.15) 0.055 (1.40) 0.006 (0.15) 1.040 (1.55) 0.884 (1.32)112 1.625 (41.3) 0.002 (0.051) 0.072 (1.83) 0.007 (0.18) 0.060 (1.52) 0.006 (0.15) 1.360 (2.02) 1.140 (1.70)2 2.125 (54.0) 0.002 (0.051) 0.083 (2.11) 0.008 (0.20) 0.070 (1.78) 0.007 (0.18) 2.060 (3.07) 1.750 (2.60)212 2.625 (66.7) 0.002 (0.0
30、51) 0.095 (2.41) 0.010 (0.25) 0.080 (2.03) 0.008 (0.20) 2.930 (4.36) 2.480 (3.69)3 3.125 (79.4) 0.002 (0.510) 0.109 (2.77) 0.011 (0.28) 0.090 (2.29) 0.009 (0.23) 4.000 (5.95) 3.330 (4.96)312 3.625 (92.1) 0.002 (0.051) 0.120 (3.05) 0.012 (0.30) 0.100 (2.54) 0.010 (0.25) 5.120 (7.62) 4.290 (6.38)4 4.1
31、25 (105) 0.002 (0.051) 0.134 (3.40) 0.013 (0.33) 0.110 (2.79) 0.011 (0.28) 6.510 (9.69) 5.380 (8.01)5 5.125 (130) 0.002 (0.051) 0.160 (4.06) 0.016 (0.41) 0.125 (3.18) 0.012 (0.30) 9.670 (14.4) 7.610 (11.3)6 6.125 (156) 0.002 (0.051) 0.192 (4.88) 0.019 (0.48) 0.140 (3.56) 0.014 (0.36) 13.900 (20.7) 1
32、0.200 (15.2)8 8.125 (206)H+0.0020.006(0.051)(0.150)0.271 (6.88) 0.027 (0.69) 0.200 (5.08) 0.020 (0.51) 25.900 (38.5) 19.300 (28.7)AThe average outside diameter of a tube is the average of the maximum and minimum outside diameter, as determined at any one cross section of the tube.TABLE 2 Mechanical
33、PropertiesTemper DesignationFormRockwell HardnessATensile StrengthStandard Former Scale Value min, ksiB(MPa)CH58 drawn straight 30T 30 min 36 (250)general lengthspurposeARockwell hardness tests shall be made on the inside surfaces of the tube.When suitable equipment is not available for determining
34、the specified Rockwellhardness, other Rockwell scales and values may be specified subject to betweenthe purchaser and the supplier.Bksi = 1000 psi.CMPa = pascal 3 106.B 819 00 (2006)2Rockwell hardness tests cannot be reached, the tensile strengthrequirements of Table 2 shall be the basis for accepta
35、nce orrejection.9. Nondestructive Testing9.1 Each tube up to and including 3-in. (76.2-mm) standardsize, 318-in. (79.4-mm) outside diameter, shall be subjected toan eddy-current test. Testing shall follow the procedures ofPractice E 243, except for the determination of “end effect.”Tubes shall be pa
36、ssed through an eddy-current test unitadjusted to provide information on the suitability of the tubefor the intended application.9.1.1 Either notch depth or drilled hole standards shall beused.9.1.1.1 Notch-depth standards, rounded to the nearest 0.001in. (0.025 mm) shall be 22 % of the wall thickne
37、ss. Thenotch-depth tolerance shall be plus and minus 0.0005 in. (0.013mm). Alternatively at the option of the manufacturer usingspeed-insensitive eddy-current units that are equipped so that afraction of the maximum imbalance signal can be selected, thefollowing percent maximum imbalance signals may
38、 be used:Standard Tube Size, in.Maximum Percent ImbalanceSignal MagnitudeUp to38 , incl 0.212 to 2, incl 0.3Over 2 to 3, incl 0.49.1.1.2 Drilled holes shall be drilled radially through thewall using a suitable drill jig that has a bushing to guide thedrill, care being taken to avoid distortion of th
39、e tube whiledrilling. The diameter of the drilled hole shall be in accordancewith the following and shall not vary by more than +0.001 in.(+0.026 mm), 0.000 in. (0.000 mm) of the hole diameterspecified.Tube OutsideDiameter, in.Diameter of DrilledHoles, in. Drill Number14 to34 , incl 0.025 72Over34 t
40、o 1, incl 0.031 68Over 1 to 114 , incl 0.036 64Over 114 to 112 , incl 0.042 58Over 112 to 134 , incl 0.046 58Over 134 to 2, incl 0.052 559.1.2 Tubes that do not activate the signalling device of theeddy-current testers shall be considered as conforming to therequirements of this test. Tubes with dis
41、continuities indicatedby the testing unit may at the option of the manufacturer bereexamined or retested to determine whether the discontinuingis cause for rejection. Signals that are found to have beencaused by minor mechanical damage, soil or moisture, shall notbe cause for rejection of the tubes
42、provided the tube dimen-sions are still within prescribed limits and the tube is suitablefor its intended application.9.2 Tube made to this specification shall be capable ofwithstanding the pressure test of 9.2.1 or 9.2.2. Should subse-quent testing by the purchaser establish that the material doesn
43、ot meet these requirements, the material may be rejected.9.2.1 The tube shall stand without showing evidence ofleakage, and an internal hydrostatic pressure sufficient tosubject the material to a fiber stress of 6000 psi (41 MPa)calculated from the following equation for thin hollow cylin-ders under
44、 tension:P 52 StD 2 0.8t(1)where:P = hydrostatic pressure, psi (MPa);S = allowable stress of the material, psi (MPa);t = wall thickness, in. (mm); andD = outside diameter of the tube, in. (mm).9.2.2 The tube shall stand an internal air pressure of 60 psig(415 kPa) for 5 s without showing evidence of
45、 leakage.The testmethod used shall permit easy visual detection of any leakage,such as by having the tube under water or by the pressuredifferential method.10. Dimensions, Mass and Permissible Variations10.1 For the purpose of determining conformance with thedimensional requirements specified in thi
46、s specification, anymeasured value outside the specified limiting values for anydimensions may be cause for rejection.10.2 Standard Dimensions, Wall Thickness, and DiameterTolerances shall be in accordance with Table 1.10.3 Theoretical Weights for purposes of calculatingweights, cross sections, and
47、so forth, the density of the coppershall be taken as 0.323 lb/in.3(8.94 g/cm3).10.4 Roundness Tolerance shall be as specified in Table 3.The deviation from roundness is measured as the differencebetween major and minor diameters as determined at any onecross section of the tube.10.5 Standard Lengths
48、 and TolerancesThe standardlength and tolerances shall be as specified in Table 4.10.6 Squareness of CutThe departure from squareness ofthe end of any tube shall not exceed more than 0.010 in. (0.25mm) for tube up to and including12-in. (12.7-mm) standardsize; and not more than 0.016 in./in. (0.40 m
49、m/mm) of outsidediameter for tube larger than12-in. (12.7-mm) standard size.11. Tube Cleaned for Medical Gas Systems11.1 Tube for medical gas systems shall be cleaned to meetthe requirements of Section 12. The following are recom-mended practices for cleaning, but the producer is not limitedto these procedures.NOTE 3Some cleaning techniques are found in CGA G-4.1.11.2 Alkaline WashingWashing in a solution of approxi-mately 4 oz of commercial alkaline cleaner per gallon (30 g/L)TABLE 3 Roundness Tolerancet/D (Ratio of Wall Thicknessto Outside Di
