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Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
19 December 2011 to 01 February 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: The test was conducted in accordance with ISO 13320:2009 and CIPAC MT 187 and took into consideration OECD guideline 110
Deviations:
not specified
Principles of method if other than guideline:
Laser Diffraction Analysis
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Identification FAT 40854/A TE
Description Reddish-brown powder (determined at NOTOX)
Batch TZ 5719 / BOP 02-11
Content 46.2 % (4 main constituents)
Test substance storage: At room temperature in the dark
Stability under storage conditions: Stable
Expiry date: 01 April 2016
Remarks on result:
other: MMAD derived
Percentile:
D50
Mean:
39.16 µm
Remarks on result:
other: Mass Median Aerodynamic Diameter MMAD (average of 5 runs). Relative standard deviation: 0.35%.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
Percentile:
D10
Mean:
14.36 µm
St. dev.:
0.24
Remarks on result:
other: Average of 5 runs/Relative standard deviation
Percentile:
D50
Mean:
31.974 µm
St. dev.:
0.34
Remarks on result:
other: Average of 5 runs/Relative standard deviation
Percentile:
D90
Mean:
59.573 µm
St. dev.:
0.39
Remarks on result:
other: Average of 5 runs/Relative standard deviation
Size:
< 10 µm
Distribution:
4.13 %

Volume weighted Mean: 34.726 µm (average of 5 runs)


Mode: 35.347 µm (average of 5 runs)


Coefficient of variation for d50 is less than 3 %; d10 and d90 are less than 5 %. Thus, repeatability of the characteristic particles in the size distribution are within the acceptable limits as per the ISO 13320-1 test standard.

Conclusions:
Particle Size Analysis for FAT 40854/A was MMAD= 39.160 µm; 4.13 % is <10.00 µm; 10 % is <14.360 µm; 50 % is <31.974 µm and 90 % is <59.573 µm.
Executive summary:

The particle size distribution of FAT 40854/A was determined in accordance with ISO 13320:2009 and CIPAC MT 187 and GLP and took into consideration OECD guideline 110 using laser diffraction analysis method. Based on the study results, Particle Size Analysis ('wet' small volume dispersion method) results for FAT 40854/A was MMAD= 39.160 µm; 4.13 % is <10.00 µm; 10 % is <14.360 µm; 50% is <31.974 µm and 90 % is <59.573 µm.

Description of key information

The particle size distribution of FAT 40854/A was determined in accordance with ISO 13320:2009 and CIPAC MT 187 and GLP and took into consideration OECD guideline 110 using laser diffraction analysis method. Based on the study results, Particle Size Analysis ('wet' small volume dispersion method) results for FAT 40854/A was MMAD= 39.160 µm; 4.13 % is <10.00 µm; 10 % is <14.360 µm;  50 % is <31.974 µm and 90 % is <59.573 µm.

Additional information