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sklademVydáno: 2023-04-01
UNE EN ISO 11210:2023
Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride (ISO 11210:2023) (Endorsed by Asociación Española de Normalización in April of 2023.)
Joyería y metales preciosos. Determinación de platino. Método gravimétrico utilizando cloruro de amonio. (ISO 11210:2023). (Ratificada por la Asociación Española de Normalización en abril de 2023.)
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| Označení normy: | UNE EN ISO 11210:2023 |
| Počet stran: | 15 |
| Vydáno: | 2023-04-01 |
| Status: | Norma |
Popis
UNE EN ISO 11210:2023
This document specifies a gravimetric method for the determination of platinum in platinum alloys. The platinum content of the sample lies preferably between 50 and 999 parts per thousand (0 ) by weight. Fineness above 999 0 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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