GB/T 3654.10-1983
Replaced
GB/T 7731.3-2008
Active
National standards
GB/T 7731.3-2008 Ferrotungsten—Determination of copper content—Bis(cyclohexanone) oxalyldihydrazone photometric method and flame atomic absorption spectrometric method
GB/T 7731.3-2008 Ferrotungsten—Determination of copper content—Bis(cyclohexanone) oxalyldihydrazone photometric method and flame atomic absorption spectrometric method
Basic Information
Standard Code:
GB/T 7731.3-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for steel and iron alloys
ICS Name:
Iron alloy
Publish Date:
2008-05-13
Implement Date:
2008-11-01
Pages:
7 pages
Scope
This section specifies the photometric method using bis-HEK and flame atomic absorption spectrometry for determining the copper content. This section is applicable to the determination of copper content in tungsten iron. The measurement range (mass fraction) of the photometric method using bis-HEK is 0.030% to 0.25%; the measurement range (mass fraction) of the flame atomic absorption spectrometry is 0.020% to 0.25%.
Development Information
Same series standard
GB/T 7731.6-2008 Ferrotungsten—Determination of arsenic content—The molybdenum blue photometrie method and inductively coupled plasma-atomic emission spectrometry
GB/T 7731.7-2008 Ferrotungsten—Determination of tin content—Phenylfluorone photometric method and inductively coupled plasma-atomic emission spectrometry
GB/T 7731.8-2008 Ferrotungsten—Determination of antimony content—The tetraethylrhodamine photometrie method and inductively coupled plasma-atomic emission spectrometry
GB/T 7731.9-2008 Ferrotungsten—Determination of bismuth content—The bismuth iodide photometric method and inductively coupled plasma-atomic emission spectrometry
GB/T 7731.12-2008 Ferrotungsten—Determination of sulfur content—Infrared absorption method and combustion titration method
GB/T 7731.14-2008 Ferrotungsten—Determination of lead content—The polarographic method and inductively coupled plasma-atomic emission spectrometry
Replace the following standards
Referenced Standards
Related Standards
GB/T 3654.1-1983
Active
GB/T 3654.1-1983 Methods for chemical analysis of ferroniobium—The paper chromatograph-gravimetric method for the determination of niobium and tantalum
GB/T 3654.2-1983
Replaced
GB/T 3654.2-1983 Methods for chemical analysis of ferroniobium—The neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 3654.3-1983
Replaced
GB/T 3654.3-1983 Methods for chemical analysis of ferroniobium The gravimetric method for the determination of silicon content
GB/T 3654.4-1983
Active
GB/T 3654.4-1983 Methods for chemical analysis of ferroniobium The combustion gravimetric method for the determination of carbon content
GB/T 3654.5-1983
Active