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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-11-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: even if the study is only based on a visually assessment, we stated ist is reliable as it is scientifically justifiable

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
this study is based on a visual assessment of the particle size distribution
GLP compliance:
yes
Remarks:
no certificate
Type of distribution:
other: visual assessment

Test material

Constituent 1
Reference substance name:
LCE11049
IUPAC Name:
LCE11049
Details on test material:
- Name of test material (as cited in study report): LCE11049- distilled acetalization products between glucose and C12/18 alcoholà
- Substance type: UVCB
- Physical state: solid
- Analytical purity:100%
- Lot/batch No.:TO4211

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
other: 100%
Mean:
> 4 - <= 5 mm
Remarks on result:
other: visual assessment show s only diameter approximately 4 to 5 mm. No dust or finer fraction was observed

Applicant's summary and conclusion

Conclusions:
the test item was observed to be cream coloured, opaque disk shaped pellets, with one flat side and one convex side. the test item was of a uniform particle size distribution , with individual pellets having a diameter of approximately 4 to 5 mm . no finer fraction (for example dust ) was observed in the sample.
Executive summary:

The visual assessment was performed in preference of the sieving procedure referenced in OECD guideline 110, 12 may 1981; however the observations confirmed the absence of any fraction with a particle size below 100µm, defined as the "inhalable fraction" in the european commission technical guidance document "particle size distribution, fibre length an,d diameter distribution"(june 1996), which satisfies the requirement of OECD guideline 110, 12 may 1981.

The test item was visually assessed to be a cream coloured, opaque disk shaped pellets, with one flat side and one convex side. the test item was of a uniform particle size distribution, with individual pellets having a diameter of approximately 4 to 5 mm. no finer fraction (for example dust) was observed in the sample.