HB 5220.26-2008 Methods for chemical analysis of super alloys. Part 26: Determination of cabalt content by nitroso-R-salt photometric method (English Version)
This part specifies the principles, reagents, instruments, sample preparation, analysis steps, calculation of analysis results, tolerances and quality control and requirements for the determination of cobalt content in high-temperature alloys using nitroso R salt absorbance photometry. This section applies to the determination of cobalt content in high-temperature alloys. Measuring range: 0.10% ~ 20.00%.
HB 5220.26-2008 Referenced Document
GB/T 7729 Chemical analysis of metallurgical products—General rule for spectrophotometric methods*, 2021-08-20 Update
HB 5421 General rules and general regulations for chemical composition analysis methods of metallic materials
HB/Z 205 Specification for sampling of specimens for chemical analysis of steels and superalloys
HB 5220.26-2008 history
2008HB 5220.26-2008 Methods for chemical analysis of super alloys. Part 26: Determination of cabalt content by nitroso-R-salt photometric method
1995HB 5220.26-1995 Determination of Cobalt Content by Nitroso R Salt Absorption Spectrophotometry Method for Chemical Analysis of Superalloys