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>BSI Standards >39 PRECISION MECHANICS. JEWELLERY>39.060 Jewellery>BS EN 31426:1994 Determination of gold in gold jewellery alloys. Cupellation method (fire assay)
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immediate downloadReleased: 1994-07-15
BS EN 31426:1994 Determination of gold in gold jewellery alloys. Cupellation method (fire assay)

BS EN 31426:1994

Determination of gold in gold jewellery alloys. Cupellation method (fire assay)

CURRENCY
249.6 EUR
Standard number:BS EN 31426:1994
Pages:12
Released:1994-07-15
ISBN:0 580 22380 9
Status:Standard
DESCRIPTION

BS EN 31426:1994


This standard BS EN 31426:1994 Determination of gold in gold jewellery alloys. Cupellation method (fire assay) is classified in these ICS categories:
  • 39.060 Jewellery

Cupellation method for determination of gold in gold jewellery alloys, preferably of between 333 and 930 parts by mass per thousand of gold. This method is the referee method for determination of gold in alloys covered by BS EN 29202.
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