GB/T 7737-2007
Ferroniobium (English Version)
- Standard No.
- GB/T 7737-2007
- Language
- Chinese, Available in English version
- Release Date
- 2007
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 7737-2007
- Replace
- GB/T 7737-1997
- Scope
- This standard specifies the technical requirements, test methods, inspection rules, packaging, storage and transportation, marking and quality certificates of ferroniobium. This standard is applicable to ferroniobium produced from niobium pentoxide and niobium concentrates for steelmaking or casting as additives, welding rods as alloying agent, magnetic materials and other purposes.
GB/T 7737-2007 Referenced Document
- GB/T 13247 Methods for sampling and testing the grain size of ferroalloys products*， 2019-10-18 Update
- GB/T 15076.1 Methods for chemical analysis of tantalum and niobium—Part 1: Determination of tantalum content in niobium—Inductively coupled plasma atomic emission spectrometry*， 2017-10-14 Update
- GB/T 3650 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy*， 2008-08-05 Update
- GB/T 3654.1 Methods for chemical analysis of ferroniobium--The paper chromatographic gravimetric method for the determination of niobium and tantalum content
- GB/T 3654.10 Methods for chemical analysis of ferroniobium--The EDTA volumetric method for the determination of aluminum content
- GB/T 3654.3 Ferroniobium—Determination of silicon content—Gravimetric method*， 2019-06-04 Update
- GB/T 3654.4 Methods for chemical analysis of ferroniobium--The combustion gravimetric method for the determination of carbon content
- GB/T 3654.5 Methods for chemical analysis of ferroniobium--The molybdenum blue photometric method for the determination of the phosphorus content
- GB/T 3654.6 Ferroniobium. Determination of sulfur content. Combustion-iodate titrimetric method, methylene blue photometric method and infrared absorption method*， 2008-05-13 Update
- GB/T 3654.7 Methods for chemical analysis of ferroniobium--The methylene blue photometric method for the determination of sulfur content
- GB/T 3654.8 Determination of ferroniobium titanium content by chromophoric acid photometry and diantipyrine methane photometry*， 2023-11-27 Update
- GB/T 3654.9 Methods for chemical analysis of ferroniobium--The thiocyanate photometric method for the determination of tungsten content
- GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*， 2015-09-11 Update
GB/T 7737-2007 history
- 2007 GB/T 7737-2007 Ferroniobium
- 1997 GB/T 7737-1997 Ferroniobium
