- Standard No.
- GB/T 19421.1-2003
- Language
- Chinese
- Release Date
- 2003
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
-
GB/T 19421-2008
- Lastest
-
GB/T 19421-2008
- Scope
- This part of GB/T 19421 specifies the method for qualitative analysis of layered crystalline sodium disilicate in layered crystalline sodium disilicate by X-ray diffractometer. This section applies to the qualitative analysis of δ-phase layered crystalline sodium disilicate in layered crystalline sodium disilicate.
GB/T 19421.1-2003 history
- 2008 GB/T 19421-2008 Test methods of crystalline layered sodium disilicate
- 2003 GB/T 19421.1-2003 Test methods of crystalline layered sodium disilicate--Qualitative analysis of delta-crystalline layered sodium disilicate--Method of X-ray diffractometer
GB/T 19421.1-2003 Test methods of crystalline layered sodium disilicate--Qualitative analysis of delta-crystalline layered sodium disilicate--Method of X-ray diffractometer was changed to GB/T 19421-2008 Test methods of crystalline layered sodium disilicate.