GB/T 21649.1-2008
Particle size analysis.Image analysis methods.Part 1: Static image analysis method (English Version)
- Standard No.
- GB/T 21649.1-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 21649.1-2008
- Scope
- This part of GB/T 21649.1 specifies the method for determining particle size distribution by static image analysis. This section applies to the determination of the size distribution of particles capable of obtaining images from a microscope. The particle size range measured in this standard is a narrow distribution of less than 10:1. To obtain reproducible volume mean diameters, more than 6000 particles need to be measured for a distribution that fits a normal distribution with a standard deviation of 1.6. If a reliable percentage value such as D90 or other percentage values is to be obtained, at least 61,000 particles must be measured. See Appendix A for details.
GB/T 21649.1-2008 Referenced Document
- ISO 9276-1 Representation of results of particle size analysis — Part 1: Graphical representation TECHNICAL CORRIGENDUM 1
- ISO 9276-2 Representation of results of particle size analysis - Part 2: Calculation of average particle sizes/diameters and moments from particle size distributions*， 2014-05-01 Update
GB/T 21649.1-2008 history
- 2008 GB/T 21649.1-2008 Particle size analysis.Image analysis methods.Part 1: Static image analysis method
