AS 3515.4-2007 (R2018)

Sets out a procedure for indirect determination of high purity gold after determination of impurities by Inductively Coupled Plasma-Atomic Emission Spectrometry ICP-AES. The method is suitable for gold and gold alloys containing more than 99.95 percent gold.RECONFIRMATION NOTICETechnical Committee CH-010 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 26 April 2018.The following are represented on Technical Committee CH-010:Australian Chamber of Commerce and IndustryBureau of Steel Manufacturers of AustraliaGeoscience AustraliaInternational Copper Association AustraliaJewellers Association of AustraliaMaterials AustraliaNational Association of Testing Authorities AustraliaPerth Mint

This Standard sets out an instrumental procedure for the indirect determination of high purity gold after determination of impurities by Inductively Coupled Plasma–Atomic Emission Spectrometry (ICP–AES). The method is suitable for gold and gold alloys containing more than 99.95% gold.Consideration should be given to the origin, manufacture and final use of the product in identifying the list elements to be tested. The following list of elements is not necessarily complete: Ag, Al, As, Be, Bi, Ca, Cr, Cu, Fe, Ir, Mg, Mn, Ni, Pb, Pd, Pt, Rh, Se, Si, Sn, Te, Ti, Zn.It is recommended that a qualitative scan be carried out on unknown material to assist in identifying any elements additional to the list.NOTE: This is an intricate procedure and should be performed only by an analyst familiar with the chemistry of the technique and the operational procedures of the instrument used.

First published as AS 3515.4-2007.
Reconfirmed 2018.