GB/T 3648-2013
Ferrotungsten (English Version)
- Standard No.
- GB/T 3648-2013
- Language
- Chinese, Available in English version
- Release Date
- 2013
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 3648-2013
- Replace
- GB/T 3648-1996
- Scope
- This standard specifies the technical requirements, test methods, inspection rules, packaging, storage and transportation, marking and quality certificates of ferrotungsten. This standard applies to ferro-tungsten used as a tungsten element additive in steelmaking and alloy materials.
GB/T 3648-2013 Referenced Document
- GB/T 13247 Methods for sampling and testing the grain size of ferroalloys products*， 2019-10-18 Update
- GB/T 3650 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy
- GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*， 2015-09-11 Update
- GB/T 7731.1 Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method*， 2021-08-20 Update
- GB/T 7731.10 Ferrotungsten—Determination of carbon content—Infrared absorption method*， 2021-08-20 Update
- GB/T 7731.12 Ferrotungsten. Determination of sulfur content. Infrared absorption method and combustion titration method
- GB/T 7731.14 Ferrotungsten. Determination of lead content. The polarographic method and inductively coupled plasma-atomic emission spectrometry
- GB/T 7731.2 Ferrotungsten-Determination of manganese content-The periodate spectrophotometric method and the flame atomic absorption spectrometric method
- GB/T 7731.3 Ferrotungsten. Determination of copper content. Bis(cyclohexanone) oxalyldihydrazone photometric method and flame atomic absorption spectrometric method
- GB/T 7731.4 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method*， 2021-08-20 Update
- GB/T 7731.5 Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method*， 2021-08-20 Update
- GB/T 7731.6 Ferrotungsten.Determination of arsenic content.The molybdenum blue photometrie method and inductively coupled plasma-atomic emission spectrometry
- GB/T 7731.7 Ferrotungsten. Determination of tin content. Phenylfluorone photometric method and inductively coupled plasma-atomic emission spectrometry
- GB/T 7731.8 Ferrotungsten.Determination of antimony content.The tetraethlrhodamine photometrie method and inductively couple plasma-atomic mission spectrometry
- GB/T 7731.9 Ferrotungsten.Determination of bismuth content.The bismuth iodide photonmetric method and inductively coupled plasma-atomic emission spectrometry
GB/T 3648-2013 history
- 2013 GB/T 3648-2013 Ferrotungsten
- 1996 GB/T 3648-1996 Ferrotungsten
