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ASTM
ASTM E2941-21
Действует
Standard Practices for Extraction of Elements from Ores and Related Metallurgical Materials by Acid Digestion — 5 стр.
ASTM E2294-21
Действует
Standard Practice for Proof Silver Corrections in Metal Bearing Ores, Concentrates, and Related Materials by Fire Assay Gravimetry — 2 стр.
ASTM E2242-21
Действует
Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure — 8 стр.
ASTM E2295-21
Действует
Standard Practice for Fire Assay Silver Corrections in Analysis of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Silver Determination in Slags and Cupels — 4 стр.