ASTM B717-1996(2006) Standard Specification for Refined Ruthenium《钌精炼标准规范》.pdf
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1、Designation: B 717 96 (Reapproved 2006)Standard Specification forRefined Ruthenium1This standard is issued under the fixed designation B 717; 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 ruthenium as spongeand powder in one grade as follows:1.1.1 Grade 99.80Ruthenium having a purity of 99.80 %.1.1.
3、2 Grade 99.90Ruthenium having a purity of 99.90 %.NOTE 1For the purposes of determining conformance with thisspecification, an observed value obtained from analysis shall be roundedto the nearest unit in the last right-hand place of figures used in expressingthe limiting value in accordance with the
4、 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 onlyand are not considered standard.1.3 This standard does not purport to address all of
5、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 (MSDS) for this product/materialas provided by the manufacturer, to establish appropria
6、tesafety 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 Conformance with Specifications3. Manufacture3.1 The material may be produced by any refi
7、ning processthat yields a product capable of meeting the chemical require-ments of this specification. The purchaser, upon request, shallbe informed of the refining process used.4. Chemical Composition4.1 The material should conform to the requirements forchemical composition as prescribed in Table
8、1.4.2 Analysis shall be made using the manufacturers stan-dard methods. In the event of disagreement as to the chemicalcomposition of the metal, methods of chemical analysis forreference purposes shall be determined by a mutually accept-able laboratory.5. Sampling5.1 The value of this material is su
9、ch that special attentionmust be paid to the sampling 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.5.2.2 PowderA single refining lot.6. Rejection and Rehearing6.1 Mat
10、erial that fails to conform to the requirements of thisspecification may be rejected. Rejection should be reported tothe manufacturer or supplier promptly and in writing. In caseof dissatisfaction with the results of the test, the producer orsupplier may make claim for rehearing.6.2 Investigation of
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- ASTMB71719962006STANDARDSPECIFICATIONFORREFINEDRUTHENIUM 精炼 标准规范 PDF

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