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>ISO 19919:2025 - Jewellery and precious metals — Determination of silver — ICP-OES method using an internal standard element
sklademVydáno: 2025-11-25
ISO 19919:2025 - Jewellery and precious metals — Determination of silver — ICP-OES method using an internal standard element

ISO 19919:2025

ISO 19919:2025 - Jewellery and precious metals — Determination of silver — ICP-OES method using an internal standard element

Formát
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Anglicky PDF
K okamžitému stažení
Tisknutelné
1916 Kč
Anglicky Tisk
skladem
1916 Kč
Francouzsky PDF
K okamžitému stažení
Tisknutelné
1916 Kč
Francouzsky Tisk
skladem
1916 Kč
Označení normy:ISO 19919:2025
Vydání:1
Vydáno:2025-11-25
Počet stran (Anglicky):10
Počet stran (Francouzsky):11
Popis

ISO 19919:2025

This document specifies an analytical method for the determination of silver on a material considered homogeneous. The silver content of the samples lies preferably between 50 ‰ (parts per thousand) and 990 ‰ (parts per thousand). Fineness above 990,0 ‰ can be determined using a spectroscopy method by difference (see ISO 15096).

NOTE            Lower contents of silver can be analysed according to this method.