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ASTM B413-97a(2021)
Standard Specification for Refined Silver (Includes all amendments and changes 12/2/2021).
Přeložit název
NORMA vydána dne 1.11.2021
Informace o normě:
Označení normy: ASTM B413-97a(2021)
Datum vydání normy: 1.11.2021
Kód zboží: NS-1043729
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM B413-97a(2021) :
This specification deals with refined silver cast bar form in three different grades as indicated by the degree of fineness of silver: Grade 99.90 (UNS P07020) which is also commonly referred to as commercial bar or bullion; Grade 99.95 (UNS P07015); and Grade 99.99 (UNS P07010). The material shall be produced by any process and shall conform to the chemical composition requirements for silver, copper, bismuth, iron, lead, palladium, selenium, and tellurium as shall be determined by any destructive or nondestructive method of chemical analysis. The bar shall be cast with a brand and shall be marked with the minimum fineness together with the melt number, bar number, and weight for identification.
Keywords:
ICS Number Code 77.150.99 (Other products of non-ferrous metals)
Doplňující informace
| 1. Scope | ||||
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1.1?This specification covers refined silver cast bar2 form in three grades as follows: 1.1.1?Grade 99.90 (UNS P07020)Silver having a minimum fineness of 999.0 commonly referred to as commercial bar or bullion. 1.1.2?Grade 99.95 (UNS P07015)Silver having a minimum fineness of 999.5. 1.1.3?Grade 99.99 (UNS P07010)A premium grade having a minimum fineness of 999.9. 1.2?The values stated in inch-pound units are to be regarded as 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. |
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| 2. Referenced Documents | ||||
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