1、Designation: B589 94 (Reapproved 2012)Standard Specification forRefined Palladium1This standard is issued under the fixed designation B589; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers refined palladium as sponge,cast bar, and wrought forms (Note 1) in one grade as follows:1.1.1 Grade 99.95 (UNS PO3995)Pall
3、adium having apurity of 99.95 %.NOTE 1Other forms of unfabricated palladium of commerce are not tobe excluded under this specification.NOTE 2For the purposes of determining conformance with thisspecification, an observed value obtained from analysis shall be roundedto the nearest unit in the last ri
4、ght hand place of figures used in expressingthe limiting value, in accordance with the rounding method of PracticeE29.1.2 The 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 onl
5、yand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with 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 (
6、MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Test Data toDetermine Con
7、formance with Specifications3. Materials and Manufacture3.1 The metal may be produced by any refining process thatyields a product capable of meeting the chemical requirementsof this specification. The purchaser, upon request, shall beinformed of the refining process used.3.2 The surfaces of bars an
8、d wrought forms shall exhibitquality generally acceptable to the trade.4. Chemical Composition4.1 The refined palladium shall conform to the requirementsas to the chemical composition prescribed in Table 1.5. Sampling5.1 The value of this material is such that special attentionmust be paid to sampli
9、ng procedures. The purchaser andmanufacturer shall agree upon the sampling procedures used.5.2 Lot SizeSampling lots shall consist of the following:5.2.1 SpongeA single refining lot, and5.2.2 Other FormsA single melt or primary consolidation.6. Method of Analysis6.1 Pending the development of standa
10、rdASTM methods ofchemical or spectrographic analysis, or both, the methods to beused shall be a matter of agreement between the manufacturerand the purchaser.7. Rejection and Rehearing7.1 Material that fails to conform to the requirements of thisspecification may be rejected. Rejection should be rep
11、orted tothe producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make claim for rehearing.7.1.1 If the palladium satisfies the requirements of thisspecification, it shall not be rejected for defects in the productsin which
12、it is used.7.2 Investigation of ClaimsIn a question of chemicalcomposition, a new sample shall be drawn by representativesof both parties in accordance with Section 5. The properlymixed and quartered sample shall be divided into three parts,each of which shall be placed in a sealed package, one for
13、themanufacturer, one for the purchaser, and one for an umpire, ifnecessary.8. Product Marking8.1 The material shall be legibly identified by mark, label,or tag with the following information: palladium (Pd) Grade_ , lot or melt number, and weight to the nearest 0.001 troyoz (0.03 g).1This specificat
14、ion is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.05 on Precious Metals and Electrical Contact Materials.Current edition approved Nov. 1, 2012. Published November 2012. Originallyapproved in 1973. Last previous edit
15、ion approved in 2005 as B589 94 (2005).DOI: 10.1520/B0589-94R12.2For 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 websi
16、te.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States19. Keywords9.1 palladium; refined palladium; spongeASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin t
17、his 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 revision at any time by the responsible technical committee and must
18、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 comments will receive careful consideration at a meeting of there
19、sponsible 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 copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700,
20、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). Permission r
21、ights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Chemical RequirementsElementAComposition, %Grade 99.95(UNS PO3995)Palladium, min (by difference) 99.95Platinum, max .Rhodium, max .Ruthenium, max .Iridium, max .Total platinum group metals oth
22、er than palladium, max 0.03Gold, max 0.01Silver, max 0.01Lead, max 0.005Tin, max 0.005Zinc, max 0.0025Iron, max 0.005Copper, max 0.005Silicon, max 0.005Magnesium, max 0.005Calcium, max 0.005Aluminum, max 0.005Nickel, max 0.005Chromium, max 0.001Cobalt, max 0.001Manganese, max 0.001Antimony, max 0.002ABy agreement between manufacturer and purchaser analyses may be requiredand limits established for elements or compounds not specified in this table.B589 94 (2012)2
