GSO ISO 9174:2007
水质铬的测定原子吸收法

Water quality – Determination of chromium – Atomic absorption spectrometric method

非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 GSO ISO 9174:2007 前三页，或者稍后再访问。

您也可以尝试购买此标准，
点击右侧 “立即购买” 按钮开始采购（由第三方提供）。

标准号

GSO ISO 9174:2007

发布

2007年

发布单位

GSO

当前最新

GSO ISO 9174:2007

 

 

适用范围

This International Standard specifies two methods for the determination of chromium in water by atomic absorption spectrometry. The two methods are covered in separate clauses as follows: ¾ Clause 3: Determination of chromium by flame atomic absorption spectrometry; ¾ Clause 4: Determination of chromium by electrothermal atomization atomic absorption spectrometry. Clause 3 is applicable to the analysis of water and waste water when the concentration range is between 0,5 mg/l and 20 mg/l of chromium. When the concentration is below 0,5 mg/l, the determination can be carried out after carefully evaporating an acidified sample to small volume, taking care to avoid the formation of a precipitate.

GSO ISO 9174:2007相似标准

推荐