标准编号:	HG/T 3696.2-2011
中文名称:	无机化工产品 化学分析用标准溶液、制剂及制品的制备 第2部分：杂质标准溶液的制备
英文名称:	Inorganic chemicals for industrical usePreparations of standard and reagent solutions for chemical analysisPart 2: Preparations of standard solutions for impurity
中标分类:	G10    无机化工原料综合
行业分类:	HG    化工行业标准
发布机构:	工业和信息化部
发布日期:	2011-12-20
实施日期:	2012-7-1
标准状态:	valid
替代旧标准:	HG/T 3696.2-2002 无机化工产品化学分机用杂质标准溶液的制备
翻译语言:	英文
文件格式:	PDF
中文字符数:	17000 字
翻译价格(元):	880.0
交付时间:	付款后 1 个工作日

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