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This specification covers refined platinum as sponge, cast bar, and wrought forms in two grades as follows: Grade 99.95 and Grade 99.99. The refined platinum shall conform to the required chemical composition for platinum, rhodium, palladium, ruthenium, iridium, gold, silver, lead, tin, zinc, iron, manganese, copper, silicon, calcium, magnesium, aluminum, nickel, chromium, antimony, arsenic, bismuth, tellurium, cadmium, and molybdenum. The metal may be produced by refining process that yields a product capable of meeting the chemical requirements of this specification.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers refined platinum as sponge, cast bar, and wrought forms ( ) in two grades as follows:
1.1.1 Grade 99.95 (UNS PO4995)—Platinum having a purity of 99.95 %, min, and
1.1.2 Grade 99.99—Platinum having a purity of 99.99 % min.
Note 1: Other forms of unfabricated platinum of commerce are not to be excluded under this specification.
Note 2: For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded to the nearest unit in the last right hand place of figures used in expressing the limiting value, in accordance with the rounding off method of Practice .
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions 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 safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental 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 standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)
UNSPSC Code 11101803(Platinum)
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ASTM B561-94(2018), Standard Specification for Refined Platinum, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top