Progold alloys master alloys for jewellery

Progold p alloys master for jewellery Progold p alloys master for jewellery Progold p alloys master for

Progold alloys master alloys for jewellery

​​​Standards
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  • UNI EN 1811:2015 - EN 1811:2011 + A1:2015
    Reference test method for the release of nickel from all the assemblies that are inserted into perforated parts of the human body and articles intended to come into direct and prolonged contact with the skin.​​
  • ISO 8653:2016
    Jewellery - Ring Sizes - Definition measurement and designation​
  • ISO 9202:2014 (UNI EN ISO 9202:2016)
    Jewellery. Title of precious metal alloys​​​​
  • CEN - CR 12471
    Screening tests for Nickel release from alloys and coatings in items that come into direct and prolonged contact with the skin​.​
  • ISO 10713:1992
    Jewellery - Gold Alloys Coating
  • ISO 11210:2014 (UNI EN ISO 11426:2016)
    Jewellery - Determination of platinum in platinum jewellery alloys - gravimetric method after percipitation of diammonium hexachloroplatinate​
  • ISO 11426:2014 (UNI EN ISO 11426:2016)
    Jewellery - Determination of gold in gold jewellery alloys - cupellation method (Fire Assay)​
  • ISO 11427:2014 (UNI EN ISO 11427:2016)
    Jewellery - Determination of silver in silver jewellery alloys - volumetric (potentiometric) method using potassium bromide​
  • ISO 11490:2015 (UNI EN ISO 11490:2016)
    Jewellery - Determination of Palladium in jewellery alloys - gravimetric determination with dimethylglyoxime​
  • ISO 11494:2014 (UNI EN ISO 11495:2016)
    Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element.​​​​
  • ISO 11495:2014 (UNI EN ISO 11495:2016)
    Jewellery - Determination of palladium in palladium jewellery alloys - ICP-OES method using yttrium as internal standard element.​
  • REACH - N.1907/2006
    European Regulation concerning the Registration, Evaluation, Authorization and Restrictions of Chemicals in general (Nickel, Lead and Cadmium)​​​​
  • ISO 11596:2008
    ​Jewellery - Sampling of precious metal alloys for and in jewellery and associated products​​
  • ISO 13756:2015
    Jewellery - Determination of silver in silver jewellery alloys - volumetric (potentiometric) method using sodium chloride or potassium chloride​
  • ISO 15093:2015
    ​Jewellery - Determination of precious metals in 999 0/00 gold, platinum and palladium jewellery alloys - difference method using ICP-OES​
  • ISO 15096:2014
    J​ewellery - Determination of silver in 999 0/00 silver jewellery alloys - difference method using ICP-OES​
  • ISO 18323:2015 (UNI EN ISO 18323:2015)
    J​ewellery - Consumer confidence in the diamond industry ​
  • ISO 8654:2018
    J​ewellery - Colours of gold alloys - definition, range of colours and designation​​
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