GB/T 23950-2009 Replaced National standards

GB/T 23950-2009 Inorganic chemicals for industrial use—General method for determination of heavy metals

GB/T 23950-2009 Inorganic chemicals for industrial use—General method for determination of heavy metals

Publish Date: 2009-06-02 Implement Date: 2010-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 23950-2009

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Inorganic chemical raw materials

ICS Name: Comprehensive Inorganic Chemistry

Publish Date: 2009-06-02

Implement Date: 2010-02-01

Pages: 8 pages

Scope

This standard specifies the safety tips, general provisions, methodological principles, reagents, instruments, and analytical procedures for the visual colorimetric method used to determine heavy metals in inorganic chemical products.
This standard is applicable to the limit determination of heavy metals (calculated as Pb) in inorganic chemical products. The detection range is: 0.2 μg/mL~2 μg/mL.

Development Information

Word Count: 5 Thousand words Pages: 8 pages

Superseded by the following standards

GB/T 23950-2024 General methods for the determination of heavy metals in inorganic chemical products

Referenced Standards

GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods HG/T 3696.2-2011 Inorganic chemical products - Preparation of standard solutions, preparations and articles for chemical analysis - Part 2: Preparation of impurity standard solutions HG/T 3696.3-2011 Inorganic chemical products for chemical analysis - Preparation of standard solutions, preparations, and articles - Part 3: Preparation of preparations and articles HG/T 3696.2-2002 Preparation of Standard Solutions for the Chemical Analysis of Inorganic Chemical Products with Impurities HG/T 3696.3-2002 The preparation of preparations and products used for chemical analysis of inorganic chemical products

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