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      This standard specifies methods for the determination of chromium and iron content in gold alloys by Inductance Coupled Plasma Atomic Emission Spectroscopy (AES) (ICP-AES). It is suitable for alloys such as AuNiCr, AuFeCr and AuNiFeZr. The determination range is 0.5% to 7% of the mass fraction of chromium and iron. The methods include acid dissolving of the sample, separation of gold, and determination of the emission intensity of chromium and iron at specific wavelengths. The standard provides reliable analytical means for the determination of chromium and iron in gold alloys, ensuring the quality control of the alloy material.

      This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
      Status Active
      CCS H68 ICS 77.120.99
      Release Date 2008-03-31 00:00:00 Implementation Date 2008-09-01 00:00:00
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