ISO 11427:2024 首饰和贵金属 银的测定 溴化钾电位法

标准编号：ISO 11427:2024

中文名称：首饰和贵金属 银的测定 溴化钾电位法

英文名称：Jewellery and precious metals — Determination of silver — Potentiometry using potassium bromide

发布日期：2024-04

标准范围

本文件规定了测定均匀材料中银的容量法。样品的银含量优选为(100~999,0)？质量千分之一（‰）。纯度999以上，0？‰可使用光谱法通过差异测定（例如ISO 15096）。该方法旨在用作ISO？所涵盖的合金中细度测定的参考方法。9202.

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.

标准预览图