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EC number: - | CAS number: -
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- DEC 2020
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- - Principle of test:
sieving
- Short description of test conditions: sieving with sieves of different sizes
- Parameters analysed / observed: particle size
laser diffraction particle size analyzer for particles < 250 µm - GLP compliance:
- no
- Type of method:
- other: sieving followed by laser diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- No.:
- #1
- Size:
- > 2 mm
- Distribution:
- 20.2 %
- No.:
- #2
- Size:
- > 1.4 - <= 2 mm
- Distribution:
- 34.3 %
- No.:
- #3
- Size:
- >= 0.6 - <= 1.4 mm
- Distribution:
- 41.2 %
- No.:
- #4
- Size:
- >= 0.25 - <= 0.6 mm
- Distribution:
- 3 %
- No.:
- #5
- Size:
- <= 0.25 mm
- Distribution:
- 1.2 %
- Conclusions:
- The particle size distribution shows 20.2 % particles bigger than 2 mm, 34.3 % particles in the range between 1.4 and 2 mm. 41.2 % of the particles are in the range between 0.6 and 1.4 mm, 3.0 % are in the range between 0.25 and 0.6 mm, while 1.2 % or the particles are smaller than 0.25 mm. Those particles have a d10 of 9.141 µm, a d50 of 75.555 µm and a d90 of 251.82 µm.
- Executive summary:
The particle size distribution of the test item was determined by sieving and additional laser diffraction for the fraction below 250 µm.
The particle size distribution shows 20.2 % particles bigger than 2 mm, 34.3 % particles in the range between 1.4 and 2 mm. 41.2 % of the particles are in the range between 0.6 and 1.4 mm, 3.0 % are in the range between 0.25 and 0.6 mm, while 1.2 % or the particles are smaller than 0.25 mm. Those particles have a d10 of 9.141 µm, a d50 of 75.555 µm and a d90 of 251.82 µm.
Reference
Particles below 250 µm have a d10 of 9.141 µm, a d50 of 75.555 µm and a d90 of 251.82 µm.
Description of key information
The particle size distribution of the test item was determined by sieving and additional laser diffraction for the fraction below 250 µm.
The particle size distribution shows 20.2 % particles bigger than 2 mm, 34.3 % particles in the range between 1.4 and 2 mm. 41.2 % of the particles are in the range between 0.6 and 1.4 mm, 3.0 % are in the range between 0.25 and 0.6 mm, while 1.2 % or the particles are smaller than 0.25 mm. Those particles have a d10 of 9.141 µm, a d50 of 75.555 µm and a d90 of 251.82 µm.
Additional information
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