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Hlavní stránka>BS EN ISO 11210:2023 - TC Tracked Changes. Jewellery and precious metals. Determination of platinum. Gravimetry using ammonium chloride
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sklademVydáno: 2023-06-08
BS EN ISO 11210:2023 - TC Tracked Changes. Jewellery and precious metals. Determination of platinum. Gravimetry using ammonium chloride

BS EN ISO 11210:2023 - TC

Tracked Changes. Jewellery and precious metals. Determination of platinum. Gravimetry using ammonium chloride

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Označení normy:BS EN ISO 11210:2023 - TC
Počet stran:36
Vydáno:2023-06-08
ISBN:978 0 539 26558 3
Status:Tracked Changes
Popis

BS EN ISO 11210:2023 - TC


This standard BS EN ISO 11210:2023 - TC Tracked Changes. Jewellery and precious metals. Determination of platinum. Gravimetry using ammonium chloride is classified in these ICS categories:
  • 39.060 Jewellery
This document specifies a gravimetric method for the determination of platinum on a material considered homogeneous. The platinum content of the sample lies preferably between 50 and 999 parts per thousand (‰) by mass. Fineness above 999 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15093). This method is also intended to be used as one of the recommended methods for the determination of fineness in jewellery alloys covered by ISO 9202.
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