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BS EN ISO 11427:2024 – TC

BS EN ISO 11427:2024 – TC

$112.35

Tracked Changes. Jewellery and precious metals. Determination of silver. Potentiometry using potassium bromide

Published By Publication Date Number of Pages
BSI 2024 29
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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.

PDF Catalog

PDF Pages PDF Title
18 undefined
24 8.1 Determination of potassium bromide solution factor
8.1.1 General
8.1.2 Preparation of silver standards
8.1.3 Titration of the standard silver solution
25 8.1.4 Calculation of the potassium bromide standard solution factor
8.2 Determination
8.2.1 Preparation of the sample solution
8.2.2 Elimination of palladium
8.2.3 Titration of the sample solution
9.1 Calculation
26 9.2 Repeatability

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BS EN ISO 11427:2024 - TC
$112.35