- Standard No.
- GB/T 14540.4-1993
- Language
- Chinese
- Release Date
- 1993
- Published By
- Professional Standard - Agriculture
- Replace By
-
GB/T 14540-2003
- Lastest
-
GB/T 14540-2003
- Scope
- This standard specifies the atomic absorption spectrometry method for the determination of zinc. This standard applies to the determination of 0.01% to 0.5% zinc content in compound fertilizers.
GB/T 14540.4-1993 history
- 2003 GB/T 14540-2003 Determination of copper,iron,manganese,zinc,boron and molybdenum content for compound fertilizers
- 1993 GB/T 14540.4-1993 Determination method of zinc in compound fertilizer
GB/T 14540.4-1993 was changed to GB/T 14540-2003 Determination of copper,iron,manganese,zinc,boron and molybdenum content for compound fertilizers.