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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:
18 February 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP compliant study in compliance with international recognized guidelines.
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Version / remarks:
1981
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Version / remarks:
1996
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: ISO 13320: Particle size analysis - Laser diffraction methods
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Percentile:
D10
Mean:
63.73 µm
Remarks on result:
other: Reported as L10.
Percentile:
D50
Mean:
271.53 µm
Remarks on result:
other: Reported as L50.
Percentile:
D90
Mean:
767.21 µm
Remarks on result:
other: Reported as L90.

Two test series of 3 measurements each were performed with the test item.

Conclusions:
The test item Heliotropin ORD (Piperonal) has a median particle size L50 = 272 µm, which was determined by laser diffraction measurement.
Executive summary:

Following OECD 110, the median particle size was determined by laser diffraction measurement. The test item Heliotropin ORD (Piperonal) has a median particle size L50 = 272 µm, which was determined by laser diffraction measurement.

Description of key information

The test item Heliotropin ORD (Piperonal) has a median particle size L50 = 272 µm, which was determined by laser diffraction measurement.

Additional information

Following OECD 110, the median particle size was determined by laser diffraction measurement. The test item Heliotropin ORD (Piperonal) has a median particle size L50= 272 µm, which was determined by laser diffraction measurement.