Homepage>BS EN ISO 11427:2024 - TC Tracked Changes. Jewellery and precious metals. Determination of silver. Potentiometry using potassium bromide
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sklademVydáno: 2024-04-25
BS EN ISO 11427:2024 - TC
Tracked Changes. Jewellery and precious metals. Determination of silver. Potentiometry using potassium bromide
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Označení normy:
BS EN ISO 11427:2024 - TC
Počet stran:
29
Vydáno:
2024-04-25
ISBN:
978 0 539 31595 0
Status:
Tracked Changes
DESCRIPTION
BS EN ISO 11427:2024 - TC
This standard BS EN ISO 11427:2024 - TC Tracked Changes. Jewellery and precious metals. Determination of silver. Potentiometry using potassium bromide is classified in these ICS categories:
39.060 Jewellery
This document specifies a volumetric method for the determination of silver on a material considered homogeneous. The silver content of the sample lies preferably between (100 and 999,0) parts per thousand (‰) by mass. Fineness above 999,0 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15096). This method is intended to be used as the reference method for the determination of fineness in alloys covered by ISO 9202.
