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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17/09/2018-18/09/2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
1981
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Qualifier:
according to
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Version / remarks:
1996
Qualifier:
according to
Guideline:
other: CIPAC MT 187: Particle size analysis by laser diffraction
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Before the measurement the testitem was sieveed through a 1000 um sieve. The coarse fraction was 63 wt. % and the fine fraction 37 wt %. Measurement was done on a representative sample of the fine fraction of the test item (<1000 um).
Remarks on result:
not measured/tested
Key result
Percentile:
D10
Mean:
92.5 µm
St. dev.:
0
Remarks on result:
other: standard deviation not reported
Key result
Percentile:
D50
Mean:
440.9 µm
St. dev.:
0
Remarks on result:
other: Standard deviation not reported
Key result
Percentile:
D90
Mean:
967.2 µm
St. dev.:
0
Remarks on result:
other: Standard deviation not reported
Conclusions:
The test substances has the following particle soze distrubution: D10 = 92.5 µm; D50=440.9 µm; D90=967.2 µm
Executive summary:

The test item has a coarse fraction (>1000 um) of 63 wt.-% and a fine fraction <1000 µm of 37.0 wt-%. The fine fraction of the test item (<1000 µm) Slimes and sludges, electrolytic tin refining has a median particle size D10 = 92.5 µm; D50=440.9 µm; D90=967.2 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981), ISO 13320 (2009) and CIPAC MT 187.

Description of key information

The fine fraction of the test item (<1000 µm) 'Slimes and sludges electrolytic refining of tin, lead and silver containing alloy' (formerly called Slimes and sludges, electrolytic tin refining) has a median particle size D10 = 92.5 µm; D50=440.9 µm; D90=967.2 µm, which was determined by laser diffraction measurement,

Additional information