SRM 3151 Silver (Ag) Standard Solution Lot No. 160729

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of silver. A unit of SRM 3151 consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of silver. The solution contains nitric acid at a mass fraction of approximately 14 %. This data is public in the Certificate of Analysis for this material.

本标准参考物质（Standard Reference Material，SRM）可作为银定量测定的一级校准标准使用。SRM 3151的单个单元包含5支10 mL密封硼硅酸盐玻璃安瓿，其内为经重量法配制的酸化水溶液，其银的质量分数为已知定值。该溶液中硝酸的质量分数约为14%，相关数据可在该标准物质的分析证书（Certificate of Analysis）中公开获取。