GB/T 9290-2008 (English Version) PDF

Standard No.: GB/T 9290-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 9290-2008
Replace: GB/T 9290-1988

Scope: This standard specifies the analytical method for ethoxylated fatty amines in the surfactant industry. Including the following determinations: determination of pH in water-methanol medium; determination of water content; determination of sulfate ash; determination of distribution of primary amine value, secondary amine value and tertiary amine value; determination of oxyethylene content; Determination of alcohol content; examination of polyethylene glycol. This standard applies to the analysis of industrial ethoxylated fatty amines in the form of flakes, blocks, pastes or liquids, but does not contain any substances not related to manufacture. It is not suitable for ethoxylated derivatives of amidoamines and imidazolines. Analyze the general formula of product structure: (CH₂CH₂O)_mH ／ R—N \ (CH₂CH₂0)_nHR——saturated or unsaturated fatty group, whose chain length is 8 to 22 carbon atoms. m+n - can take any value depending on the application of the product, but usually varies between 1 and 50.

GB/T 9290-2008 Referenced Document

GB/T 11275 Surface active agents.Determination of water content
GB/T 603-2002 Chemical reagent--Preparations of reagent solutions for use in test methods
GB/T 6682-1992 Water for analytical laboratory use--Specification and test methods
GB/T 7383 Non-ionic surface active agents—Determination of hydroxyl value*， 2020-12-14 Update
GB/T 7385 Non-ionic surface active agents.Polyethoxylated derivatives.Iodometric determination of oxyethylene groups*， 2012-12-31 Update

2008 GB/T 9290-2008 Surface active agents.Technical ethoxylated fatty amines.Method of analysis
1988 GB/T 9290-1988 Surface active agents--Technical ethoxylated fatty amines--Methods of analysis