GB/T 23772-2009 Active National standards

GB/T 23772-2009 Inorganic chemicals for industrial use—General method for the determination of total nitrogen content—Nessler's reagent colorimetric method

GB/T 23772-2009 Inorganic chemicals for industrial use—General method for the determination of total nitrogen content—Nessler's reagent colorimetric method

Publish Date: 2009-05-13 Implement Date: 2010-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 23772-2009

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Inorganic chemical raw materials

ICS Name: Comprehensive Inorganic Chemistry

Publish Date: 2009-05-13

Implement Date: 2010-01-01

Pages: 7 pages

Scope

This standard specifies the general method for determining the total nitrogen content in inorganic chemical products, including the method outline of the Nessler's reagent colorimetry, safety tips, general provisions, reagents, instruments, equipment, analysis steps, and result calculation.
This method is suitable for the determination of the total amount of trace inorganic nitrogen compounds (including nitrates, nitrites, and ammonium salts) in inorganic chemical products. The detection range is 0.05 μg/mL to 0.8 μg/mL (calculated as N).

Development Information

Word Count: 9 Thousand words Pages: 7 pages

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

Related Standards

GB/T 17518-1998 Replaced

GB/T 17518-1998 General method for determination of silicon content of chemical products—Reducted molybdosilicate spectrophotometric method

Publish Date: 1998-10-20

GB/T 19281-2003 Replaced

GB/T 19281-2003 Analytic method for calcium carbonate

Publish Date: 2003-08-25

GB/T 19282-2003 Replaced

GB/T 19282-2003 Analytic method for lithium hexafluorophosphate

Publish Date: 2003-08-25

GB/T 21057-2007 Active

GB/T 21057-2007 Inorganic chemicals for industrial use—General method for determination of fluorine content—Ion selective electrode method

Publish Date: 2007-08-13

GB/T 21058-2007 Active

GB/T 21058-2007 Inorganic chemicals for industrial use—General method for mercury content—Flameless atomic absorption spectrometric method

Publish Date: 2007-08-13

GB/T 21354-2008 Active

GB/T 21354-2008 Powders—Determination of tap density

Publish Date: 2008-01-11