ASTM B6-2008 Standard Specification for Zinc.pdf
《ASTM B6-2008 Standard Specification for Zinc.pdf》由会员分享,可在线阅读,更多相关《ASTM B6-2008 Standard Specification for Zinc.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation:B608American Association of StateHighway and TransportationOfficials StandardAASHTO No: M120-77Standard Specification forZinc1This standard is issued under the fixed designation B 6; the number immediately following the designation indicates the year of originaladoption or, in the case o
2、f revision, the year of last revision. A number in parentheses 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. Scope*1.1 This specifi
3、cation covers zinc metal made from ore orother material by a process of distillation or by electrolysis infive grades as follows:1.1.1 LME Grade1.1.2 Special High Grade1.1.3 High Grade1.1.4 Intermediate Grade1.1.5 Prime Western GradeNOTE 1Certain continuous galvanizing grades are specified in Speci-
4、fication B 852. Other continuous galvanizing and controlled lead gradesare not included in this specification but are covered by specific userpurchasing specifications.1.2 This specification does not cover zinc produced by“sweating” or remelting of secondary zinc.1.3 The values stated in inch-pound
5、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.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is therespon
6、sibility 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 determine the applicability ofreg
7、ulatory 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:2B 852 Specification for Continuous Galvanizing Grade(CGG) ZincAlloys for Hot
8、-Dip Galvanizing of Sheet SteelB 897 Specification for the Configuration of Zinc and ZincAlloy Jumbo and Block IngotB 899 Terminology Relating to Non-ferrous Metals andAlloysB 914 Practice for Color Codes on Zinc and Zinc AlloyIngot for Use in Hot-Dip Galvanizing of SteelE29 Practice for Using Signi
9、ficant Digits in Test Data toDetermine Conformance with SpecificationsE47 Test Methods for Chemical Analysis of Zinc Die-Casting Alloys3E88 Practice for Sampling Nonferrous Metals and Alloysin Cast Form for Determination of Chemical CompositionE 527 Practice for Numbering Metals and Alloys in theUni
10、fied Numbering System (UNS)E 536 Test Methods for ChemicalAnalysis of Zinc and ZincAlloys2.3 ISO Standards:4ISO 3815-1 Zinc and zinc alloys Part 1:Analysis of solidsamples by optical emission spectrometryISO 3815-2 Zinc and zinc alloys Part 2: Analysis byinductively coupled plasma optical emission s
11、pectrometry3. Terminology3.1 Terms shall be defined in accordance with TerminologyB 899.3.2 Definitions of Terms Specific to This Standard:3.2.1 LME Grade, na grade of zinc containing a mini-mum of 99.995 % zinc, with controlled impurity levels, asspecified in Table 1.3.2.2 Special High Grade, na hi
12、gh purity grade of zinccontaining a minimum of 99.990 % zinc, with controlledimpurity levels, as specified in Table 1.3.2.3 High Grade, na grade of zinc containing a mini-mum of 99.95 % zinc, with controlled impurity levels, asspecified in Table 1.3.2.4 Intermediate Grade, na grade of zinc containin
13、g aminimum of 99.5 % zinc, with controlled impurity levels, asspecified in Table 1.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.04 on Zinc and Cadmium.Current edition approved Nov. 1, 2008. Publ
14、ished December 2008. Originallyapproved in 1911. Last previous edition approved in 2007 as B607.2For 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 Docume
15、nt Summary page onthe ASTM website.3Withdrawn.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box
16、C700, West Conshohocken, PA 19428-2959, United States.3.2.5 Prime Western Grade, na grade of zinc containing0.5 to 1.4 % lead, a minimum of 98.5 % zinc, with controlledimpurity levels, as specified in Table 1.3.3 Abbreviations:3.3.1 LMELME Grade Zinc3.3.2 SHGSpecial High Grade Zinc3.3.3 HGHigh Grade
17、 Zinc3.3.4 IGIntermediate Grade Zinc3.3.5 PWGPrime Western Grade Zinc4. Ordering Information4.1 Orders for zinc metal under this specification shallinclude the following information:4.1.1 ASTM designation and year of issue,4.1.2 Quantity (weight),4.1.3 Name of material (zinc metal),4.1.4 Size (see S
18、ection 7), and4.1.5 Grade (see Table 1).5. Materials and Manufacture5.1 The manufacturer shall use care to have each lot of zincmetal be as uniform in quality as possible.6. Chemical Composition6.1 The zinc metal shall conform to the requirementsprescribed in Table 1.7. Sizes and Shapes7.1 Slabs var
19、ying in weight from 40 to 60 lb (18 to 27 kg)are all considered standard slabs.7.2 Zinc metal may be ordered in jumbos or blocks, asspecified in Specification B 897.7.3 Zinc metal may also be ordered in anodes or othershapes.8. Appearance8.1 The zinc metal shall be reasonably free of surfacecorrosio
20、n and adhering foreign matter.9. Sampling for Chemical Analysis9.1 The producer may obtain representative samples fromthe molten metal during casting, and all or part of thesesamples may be cast into shapes suitable for use in spectro-chemical methods.9.2 If the zinc is in the form of standard slabs
21、 at thecustomers plant, the sample for chemical analysis shall betaken in accordance with 9.2.1-9.2.5, inclusive.9.2.1 Selection of PortionA portion representative of thetotal shipment or order shall be selected at random for the finalsample. The portion preferably shall be taken during loading orun
22、loading. From lots containing at least 60 000 lb (27 300 kg)of zinc, one slab shall be taken from every 10 000 lb (4530 kg).From smaller lots, five slabs shall be taken.9.2.2 Preparation of SampleEach slab shall be cleanedthoroughly to rid the surface of extraneous material and drilledor sawed, with
23、out lubricant in accordance with 9.2.3 or 9.2.4.The drillings or sawings shall be subjected to the action of astrong magnet to remove any adventitious iron with which thesample may have become contaminated from the drill or saw.NOTE 2Sampling by sawing is not recommended for Special HighGrade zinc b
24、ecause complete removal of the final traces of adventitiousiron from sawings is difficult.9.2.3 DrillingTwo holes shall be drilled, preferably fromthe bottom or brand side of each slab, at two points locatedalong one diagonal of the slab so that each point is halfwaybetween the center and one extrem
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMB62008STANDARDSPECIFICATIONFORZINCPDF
