JB/T 4394-1999
Chemical analysis methods for total rare-earth,silicon,magnesiun in rare-earth magnesium alloys (English Version)
- Standard No.
- JB/T 4394-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- 2016-06
- Replace By
- JB/T 4394-2016
- Latest
- JB/T 4394-2016
- Replace
- JB 4394-1987
- Scope
- This standard specifies methods such as chlorophosphine azophotometry, oxalate gravimetric method, chlorophosphine azophotometry I, and copper reagent separation EDTA complex titration. This standard is applicable to the determination of total rare earth content, silicon and magnesium in rare earth magnesium alloys (i.e. spheroidizing agent). This standard complies with GB/T 1467-1978 "General Provisions and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
JB/T 4394-1999 history
- 2016 JB/T 4394-2016 Rare earth magnesium silicon alloys.Chemical analysis methods of total rare earth, silicon, total magnesium and magnesia
- 1999 JB/T 4394-1999 Chemical analysis methods for total rare-earth,silicon,magnesiun in rare-earth magnesium alloys
- 0000 JB 4394-1987
