1、Designation: B 589 94 (Reapproved 2005)Standard Specification forRefined Palladium1This standard is issued under the fixed designation B 589; 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 pa
2、rentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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)
3、Palladium having apurity of 99.95 %.NOTE 1Other forms of unfabricated palladium of commerce are notto be 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 las
4、t right 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 the standard. The values given in parentheses are forinformation only.1.3 This standard does not purport to address
5、 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 for this product/material as pro-vided by the manufacturer, to establish approp
6、riate safety andhealth practices, and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3. Materials and Manufacture3.1 The metal may be produc
7、ed 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 and wrought forms shall exhibitquality generally acceptable to the trade.4. Chemical
8、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 sampling procedures. The purchaser andmanufacturer shall agree upon the sampling procedur
9、es used.5.2 Lot SizeSampling lots shall consist of the following:5.2.1 SpongeA single refining lot, and5.2.2 Other Forms A single melt or primary consolida-tion.6. Method of Analysis6.1 Pending the development of standardASTM methods ofchemical or spectrographic analysis, or both, the methods to beu
10、sed shall be a matter of agreement between the manufacturerand the purchaser.1This specification 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 a
11、pproved May 1, 2005. Published June 2005. Originallyapproved in 1973. Last previous edition approved in 1999 as B 589 94 (1999)e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informat
12、ion, refer to the standards Document Summary page onthe ASTM website.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 other than palladium, max 0.03Gold
13、, 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 manufact
14、urer and purchaser analyses may berequired and limits established for elements or compounds not specified in thistable.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7. Rejection and Rehearing7.1 Material that fails to conform to th
15、e requirements of thisspecification may be rejected. Rejection should be reported 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 this
16、specification, it shall not be rejected for defects in the productsin which 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
17、into three parts,each of which shall be placed in a sealed package, one for 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 me
18、lt number, and weight to the nearest0.001 troy oz (0.03 g).9. Keywords9.1 palladium; refined palladium; spongeASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised
19、 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 andif not revised, either rea
20、pproved 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 theresponsible technical committee, which you may attend. If yo
21、u 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 19428-2959,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).B 589 94 (2005)2
