GB/T 3654.2-2008
Ferroniobium. Determination of copper content. The neocuproine-choroform extraction photometric method (English Version)

Standard No.: GB/T 3654.2-2008
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 3654.2-2008
Replace: GB/T 3654.2-1983

Scope: WARNING: Personnel applying this standard should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part specifies the determination of copper content in ferroniobium by neocuproine-chloroform extraction spectrophotometry. This section applies to the determination of copper content in ferroniobium. Measuring range (mass fraction): 0.0040% to 0.18%.

GB/T 3654.2-2008 Referenced Document

GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*， 2015-09-11 Update

2008 GB/T 3654.2-2008 Ferroniobium. Determination of copper content. The neocuproine-choroform extraction photometric method
1983 GB/T 3654.2-1983 Methods for chemical analysis of ferroniobium--The neocuproine-chloroform extraction photometric method for the determination of copper content