Populære standarder

• ASTM E2242 - 21

  Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure

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• ASTM E2294 - 21

  Standard Practice for Proof Silver Corrections in Metal Bearing Ores, Concentrates, and Related Materials by Fire Assay Gravimetry

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• ASTM E2295 - 21

  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

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