ASTM B29-2003(2009) Standard Specification for Refined Lead《精炼铅的标准规范》.pdf

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1、Designation: B 29 03 (Reapproved 2009)Standard Specification forRefined Lead1This standard is issued under the fixed designation B 29; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parenthes

2、es indicates the year of last reapproval. A superscriptepsilon () 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 refined lead in pig, block, orhog form.1.2 The

3、values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated w

4、ith its use. It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and deter

5、mine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on thedate of material purchase form a part of this specification to theextent referenced herein.2.2 ASTM Standards:2E29 Practice for Using Significant Digits in Tes

6、t Data toDetermine Conformance with SpecificationsE37 Test Methods for Chemical Analysis of Pig LeadE88 Practice for Sampling Nonferrous Metals and Alloysin Cast Form for Determination of Chemical Composition3. Ordering Information3.1 Orders for refined lead under this specification shallinclude the

7、 following information:3.1.1 ASTM designation and year of issue,3.1.2 Quantity (weight),3.1.3 Name of material (for example, pure lead),3.1.4 Size and shape (see Section 6),3.1.5 Grade (see Table 1 and accompanying notes), and3.1.6 Certification or test report if specified (Section 13).4. Materials

8、and Manufacture4.1 Lead shall be supplied in commercial standard forms orshapes requested by the purchaser in the following grades:4.1.1 Low bismuth low silver pure lead,4.1.2 Refined pure lead,4.1.3 Pure lead, and4.1.4 Chemical copper lead.4.2 The grades of lead listed in 4.1.1-4.1.4 shall be produ

9、cedby any smelting and refining process from ore or recycledmaterials to meet the chemical requirements of this specifica-tion.5. Composition5.1 The lead shall conform to the requirements prescribed inTable 1 and accompanying notes.6. Sizes and Shapes6.1 Pigs shall weigh up to a nominal 110 lb (50 k

10、g).6.2 Blocks or hogs shall be square or oblong and weigh upto 2530 lb (1150 kg).7. Appearance7.1 The lead shall be reasonably free from surface corrosionand adhering foreign material.8. Lot8.1 All lead of the same type produced and cast at one timeshall constitute a lot for chemical analysis. Each

11、pig or block ofthe lot shall bear a single identifying number that can be relatedto the manufacturing lot.9. Sampling for Chemical Analysis9.1 The sample for chemical analysis shall be selected byone of the following methods:9.1.1 Test samples taken from the lot during casting, or1This specification

12、 is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.02 on Refined Lead, Tin, Antimony, and Their Alloys.Current edition approved Oct. 1, 2009. Published October 2009. Originallyapproved in 1919. Last previous edition app

13、roved in 2003 as B 29 - 03.2For 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.1Copyright ASTM International, 100

14、 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.9.1.2 Test samples taken from the final solidified castproduct.9.2 Sampling for Lot AnalysisThe supplier may obtainsamples from the lot of molten metal during casting.All or partof these samples may be cast into shapes

15、suitable for use inspectrographic analytical methods.9.3 Sampling of Cast Product:9.3.1 If the lead is in the form of standard pigs (Fig. 1), thesample for chemical analysis shall be taken in accordance with9.3.3.1, 9.3.3.2,or9.3.3.3.9.3.1.1 If the pigs differ in shape from those shown in Fig.1 or t

16、he product is cast into blocks or hogs, the supplier and thepurchaser shall agree mutually as to the method to be followedin sampling such shapes.9.3.2 Sampling Pig LeadA portion representative of thetotal shipment shall be selected at random for the final sample.For lots containing at least 100 000

17、 lb (45 400 kg) of pig lead,one pig shall be taken from every 20 000 lb (9080 kg). Forsmaller lots, a total of five pigs shall be taken.9.3.3 Sample PreparationEach pig shall be cleaned thor-oughly to rid the surface of dirt or adhering foreign materialprior to sampling by one of the following metho

18、ds: sawing,drilling, or melting.9.3.3.1 SawingThe pigs selected shall be sawed com-pletely through as illustrated in Fig. 1. The sawings from thepigs shall be mixed thoroughly and quartered, and the samplesfor analysis taken from the mixed material. The sawings mustbe free of extraneous material int

19、roduced from the saw blade.All sawings shall be treated with a strong magnet in order toremove iron introduced by sawing.9.3.3.2 DrillingThe pigs shall be drilled at least halfwaythrough from two opposite sides as illustrated in Fig. 2. A drillof about12 in. (12.7 mm) in diameter shall be used. In d

20、rilling,the holes shall be spaced along a diagonal line from one cornerof the pig to the other. Holes may be made in a single pig or ineach of several pigs placed as illustrated in Fig. 2. The drillingsTABLE 1 Chemical RequirementsA,BGradeComposition (Weight Percent)Low BismuthLow SilverPure Lead,ma

21、xCRefined PureLead, maxDPure Lead,maxChemical-Copper LeadESb 0.0005 0.0005 0.001 0.001 maxAs 0.0005 0.0005 0.001 0.001 maxSn 0.0005 0.0005 0.001 0.001 maxSb As and Sn . . 0.002 0.002 maxCu 0.0010 0.0010 0.0015 0.0400.080Ag 0.0010 0.0075 0.010 0.020 maxBi 0.0015 0.025 0.05 0.025 maxZn 0.0005 0.001 0.

22、001 0.001 maxTe 0.0001 0.0001 . .Ni 0.0002 0.0002 0.0005 0.002 maxFe 0.0002 0.001 0.001 0.002 maxLead (min) bydifference99.995 99.97 99.94 99.90UNS Number L50006 L50021 L50049 L51121AThe following applies to all specified limits in Table 1: For the purpose ofdetermining conformance with this specifi

23、cation, an observed value obtained fromthe analysis shall be rounded off “to the nearest unit” in the last right hand placeof figures used in expressing the limiting value, in accordance with the roundingmethod of Practice E29.BBy agreement between the purchaser and the supplier, analyses may berequ

24、ired and limits established for elements or compounds not specified in Table1.CThis grade is intended for chemical applications where low silver and lowbismuth contents are required.DThis grade is intended for lead acid battery applications.EThis grade is intended for applications requiring corrosio

25、n protection andformability.FIG. 1 Method of Sampling Lead by SawingNOTE 1Pigs selected for sampling shall be placed side by side, everyother pig bottom side up, and sampled according to template in sets of fivepigs each as indicated above. The pigs shall be drilled at least halfwaythrough: when a l

26、arger sample is desired, the pigs shall be turned over andsampled on the other diagonal.FIG. 2 Method of Sampling Lead by DrillingB 29 03 (2009)2shall be clipped into pieces not over12 in. (12.7 mm) in length,mixed thoroughly, and treated with a strong magnet to removeiron introduced by drilling.9.3

27、.3.3 MeltingWhole pigs, portions of pigs produced bysawing, drillings, or sawings shall be melted in a clean vessel.The melting temperature must not exceed 685F (363C) toprevent excessive drossing. The lead must be stirred immedi-ately prior to sampling. The molten lead shall be cast intoshapes suit

28、able for use in spectrographic analysis, cast into thinsample bars not to exceed38 in. (9.5 mm) thick for sawing, orgranulated by pouring into distilled water and drying thematerial thoroughly. For sample bars, saw cuts shall be madehalfway across the bar from each side and staggered so thatthey are

29、 about12 in. (12.7 mm) apart. The sawings so producedare treated in accordance with 9.3.3.1.9.3.4 Sample Size:9.3.4.1 For spectrographic analysis, three samples shall beprepared of a size and shape satisfactory for use by thelaboratory at which the analysis is to be made.9.3.4.2 For wet chemical ana

30、lysis, each prepared sample(sawings, drillings, or granules) shall weigh at least 600 g.39.3.5 Aspects of sampling and sample preparation notspecifically covered in this specification shall be carried out inaccordance with Practice E88.10. Methods of Chemical Analyses10.1 The chemical compositions e

31、numerated in Table 1 ofthis specification shall, in case of disagreement, be determinedby wet chemical or spectrographic methods mutually agreedupon by the supplier and the purchaser.10.2 By agreement between the purchaser and the supplier,analyses may be required and limits established for elements

32、 orcompounds not specified in Table 1.11. Inspection11.1 Inspection of the material shall be agreed upon be-tween the purchaser and the supplier as part of the purchasecontract.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements ofthis specification may be rejected. Re

33、jection should be reportedto the supplier promptly and in writing. In case of dissatisfac-tion with the results of the test, the supplier may make claimfor a rehearing.12.2 Rejection shall be considered as follows:12.2.1 Variation of weight, quantity, dimensions, or work-manship.12.2.2 Chemical comp

34、osition.12.2.2.1 In case of dispute, the material shall be sampled inthe presence of both parties in accordance with 9.3.12.2.2.2 The resulting sample (at least 1800 g) shall bemixed and separated into three equal parts, each of which shallbe placed in a sealed package, one for the supplier, one for

35、 thepurchaser, and one for the umpire if necessary, and analyzed inaccordance with Test Methods E37.12.3 When the lead metal satisfies the chemical and physi-cal requirements of this specification, it shall not be con-demned for defects in manufacturing or for defects of alloys orproducts in which i

36、t is used.13. Certification13.1 When specified in the purchase order or contract, thepurchaser shall be furnished certification that samples repre-senting each lot have been tested as directed in this specifica-tion and the requirements have been met. When specified in thepurchase order or contract,

37、 a certified report of the test resultsshall be furnished.14. Marking and Special Requirements14.1 A brand, by which the supplier can be identified, shallbe cast or marked legibly upon each pig, block, or hog. Inaddition, other markings shall identify the material by type andlot number.14.2 (Any) sp

38、ecial marking, color code, and other qualityrequirements not covered by this specification shall be agreedupon between the supplier and the purchaser.15. Keywords15.1 chemical-copper lead; lead; lead metal; pure lead;refined pure leadASTM International takes no position respecting the validity of an

39、y patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to rev

40、ision at any time by the 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 International Headquarters. Your

41、 comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyr

42、ighted by ASTM International, 100 Barr Harbor Drive, 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 aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).3Fox, G. J., “Determination of As, Sb, and Te in Lead and Lead Alloys UsingHydride Generation Atomic Absorption Spectrometry,” Atomic Spectroscopy,Vol11, No.1, January 1990, p. 13.B 29 03 (2009)3