ASTM B960-2018 Standard Specification for Prime Western Grade-Recycled (PWG-R) Zinc.pdf

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1、Designation: B960 13B960 18Standard Specification forPrime Western Grade-Recycled (PWG-R) Zinc1This standard is issued under the fixed designation B960; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n

2、umber 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 covers prime western grade-recycled (PWG-R) zinc made by recycling zinc secondary materialsincluding but not limited

3、 to drosses and skimmings.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 This standard does not purport to address all of the

4、safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety DataSheet (MSDS)(SDS) for this product/material as provided by the manufacturer, to establish appro

5、priate safety safety, health, andhealthenvironmental practices, and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles fo

6、r the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 The following documents of the issue in effect on the date of material purchase form a part of this specification to t

7、he extentreferenced herein.2.2 ASTM Standards:2B6 Specification for ZincB897 Specification for Configuration of Zinc and Zinc Alloy Jumbo, Block, Half Block, and Slab IngotB899 Terminology Relating to Non-ferrous Metals and AlloysB914 Practice for Color Codes on Zinc and Zinc Alloy Ingot for Use in

8、Hot-Dip Galvanizing of SteelB949 Specification for General Requirements for Zinc and Zinc Alloy ProductsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical

9、 CompositionE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys2.3 ISO Standards:3ISO 3815-1 Zinc and zinc alloysPart 1: Analysis of solid samples by optical emission spectrometryISO 3815-2 Zinc and zinc a

10、lloysPart 2: Analysis by inductively coupled plasma optical emission spectrometry3. Terminology3.1 Terms shall be defined in accordance with Terminology B899.3.2 Definitions of Terms Specific to This Standard:3.2.1 Prime Western Grade-Recycled, na grade of zinc containing 0.5 to 1.4 % lead, a minimu

11、m or 98.5 % zinc, withcontrolled impurity levels as specified in Table 1 made by recycling zinc secondary materials.3.3 Abbreviations:1 This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zincan

12、d Cadmium.Current edition approved Feb. 1, 2013Nov. 1, 2018. Published March 2013January 2019. Originally approved in 2008. Last previous edition approved in 20122013 asB960 12.13. DOI: 10.1520/B0960-13.10.1520/B0960-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactA

13、STM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.Thi

14、s document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editio

15、ns as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*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.

16、United States13.3.1 PWG-RPrime Western Grade-Recycled Zinc4. Ordering Information4.1 Orders for zinc alloy ingot under this specification shall include information as specified in See Specification B949, Section45. Materials and Manufacture5.1 The manufacturer shall use care to have each lot of zinc

17、 metal be as uniform in quality as possible.6. Chemical Composition6.1 The zinc metal shall conform to the requirements prescribed in Table 1.7. Sizes and Shapes7.1 Slabs varying in weight from 40 to 60 pounds (18 to 27 kg) are all considered standard slabs.7.2 PWG-R Zinc metal may be ordered in jum

18、bos or blocks as specified in Specification B897.7.3 Other shapes and sizes as may be agreed upon between the producer and the customer if they are cast to the chemicalcomposition requirements prescribed in Table 1.8. Appearance8.1 The PWG-R Zinc metal shall be reasonably free of surface corrosion a

19、nd adhering foreign material.9. Sampling for Chemical Analysis9.1 Sampling procedures shall be in compliance with the provisions of See Specification B949, Section 610. Methods of Chemical Analysis10.1 The chemical compositions enumerated in this specification shall, in case of disagreement, be dete

20、rmined by the methodsmutually agreed upon and approved for referee purposes by Test Methods E536, ISO 3815-1, or ISO 3815-2.NOTE 1Test Methods E536 is directly applicable, in an unmodified form, only to alloys 3, 5, and 7. ISO 3815-1 and ISO 3815-2 are generic methodsapplied to zinc and zinc alloys.

21、 Each of the methods may be modified and formatted for the alloy to be assayed. An experienced chemist, using suitableand/or traceable standards along with valid quality assurance techniques, will be able to perform and validate the methods and demonstrate acceptableprecision and accuracy.11. Reject

22、ion and Rehearing11.1 Claims to be considered in accordance with the provisions of See Specification B949, Section 8TABLE 1 Chemical RequirementsNOTE 1The following applies to all specified limits in this table: For purposes of determining conformance with this specification, an observed valueobtain

23、ed from analysis shall be rounded off “to the nearest unit” in the last right-hand place of figures used in expressing the limiting value, in accordancewith the rounding method of Practice E29.Composition, %AGrade(UNS)BColorCodeCLead Ironmax Cadmimummax Aluminummax CoppermaxTotalNon-ZincmaxDZinc,min

24、. bydifferenceGrade(UNS)BColorCodeCLead Ironmax Cadmimummax Aluminummax CoppermaxTotalNon-ZincmaxDZinc,min. bydifferencePrimeWesternGrade-Recycled,(PWG-R)(Z18005)Black 0.51.4 0.05 0.20 0.01 0.10 1.5 98.5A This composition will remain the same as specified in B6 for Prime Western Grade.B UNS designat

25、ions were established in accordance with Practice E527.C Refer to Practice B914.D PWG-R may contain small amounts of Bi, Ni, and Sn which could affect the galvanizing process or product. The maximum limits for these elements may be agreed uponby written agreement between the producer and consumer.B9

26、60 18212. Investigation of Claims12.1 Claims shall be investigated in accordance with the provisions of See Specification B949, Section 813. Settlement of Claims13.1 Claims shall be settled in accordance with the provisions of See Specification B949, Section 814. Product Identification Marking and P

27、ackaging14.1 Each slab, block, jumbo, or ingot shall be marked for identification in accordance with See Specification B949, Section1015. Keywords15.1 prime western grade-recycled zinc; prime western zinc; PWG-R; recycled zinc; secondary zinc; zinc; zinc metalSUMMARY OF CHANGESCommittee B02 has iden

28、tified the location of selected changes to this standard since the last issue (B960 12)13) that may impact the use of this standard. (Approved FebruaryNovember 1, 2013.)2018.)(1) UNS numbers were added.Section references to Specification B949 were removed.Committee B02 has identified the location of

29、 selected changes to this standard since the last issue (B960 08)that may impact the use of this standard. (Approved May 1, 2012.)(1) Revisions have been made to Sections 2, 4, 9, 11, 12, 13 and 14 to reference Specification B949 and delete certain portionsof these sections formerly a part of this s

30、tandard.(2) The titles of Sections 4 and 14 have been revised to be in agreement with a standard format for Subcommittee B02.04 standards.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this st

31、andard 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 revision at any time by the responsible technical committee and must be reviewed every five years a

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33、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 copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-295

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