標準編號:	HG/T 3696.2-2011
中文名稱:	無機化工產品 化學分析用標準溶液、制劑及制品的制備 第2部分：雜質標準溶液的制備
英文名稱:	Inorganic chemicals for industrical usePreparations of standard and reagent solutions for chemical analysisPart 2: Preparations of standard solutions for impurity
中標分類:	G10    無機化工原料綜合
行業分類:	HG    化工行業標準
發布機構:	工業和信息化部
發布日期:	2011-12-20
實施日期:	2012-7-1
標準狀態:	valid
替代舊標準:	HG/T 3696.2-2002 無機化工產品化學分機用雜質標準溶液的制備
翻譯語言:	英文
文件格式:	PDF
中文字符數:	17000 字
翻譯價格(元):	880.0
交付時間:	付款后 1 個工作日

1 Scope This part specifies the methods of preparing standard solutions for impurity for chemical analysis of inorganic chemicals for industrial use. It applies to the preparation of standard solution containing exact amount of certain element, ion or molecule in certain volume required for the determination of impurities in analysis of inorganic chemicals for industrial use. It may also be used for chemical analysis of other chemical products for industrial use. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the dated edition is applicable to this document. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods HG/T 3696.1 Inorganic chemicals for industrial use - Preparations of standard and reagent solutions for chemical analysis - Part 1: Preparations of standard volumetric solutions HG/T 3696.3 Inorganic chemicals for industrial use - Preparations of standard and reagent solutions for chemical analysis - Part 3: Preparations of reagent solutions 3 General requirements 3.1 Unless otherwise specified, the water adopted in this part refers to Grade 3 water specified in GB/T 6682-2008. 3.2 The purity of any reagent used in this part is above analytically pure. Surface treatment shall be conducted before applying easily oxidized metals. 3.3 Unless otherwise specified, the required standard and reagent solutions in annexes of this part are prepared in accordance with HG/T 3696.1 and HG/T 3696.3. 3.4 In diluting standard solutions for impurity, accurate measuring instruments (pipette and volumetric flask) shall be used for integral multiple dilution, and the volume of standard solution measured each time shall not be less than 1.00mL.

Foreword i 1 Scope 2 Normative references 3 General requirements 4 Warning 5 Preparation methods Annex A (Informative) Calibration of standard solutions for sulfur impurity Annex B (Normative) Methods for determining the contents of two solutions Annex C (Informative) Method of preparing standard solutions for impurity calculated by organic molecule