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Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Internal non-GLP data (acceptable for physico-chemistry) from a producer. Test item not described at all. No report but only a software program sheet.

Data source

Reference
Reference Type:
other: programme sheet (no report)
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Beckman Coulter LS Particle Size Analyzer
GLP compliance:
not specified
Remarks:
no report, only the Beckman sheet submitted.
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
no data on test item at all

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:
D10
Mean:
25.7 µm
Percentile:
D50
Mean:
82.86 µm
Percentile:
D90
Mean:
135.4 µm

Any other information on results incl. tables

mean diameter: 81.12 µm, very close to the median value

Applicant's summary and conclusion

Executive summary:

A Yeast extract had a median particle size of 83 µm, with D10 and D90 of 26 and 135 µm, resp.

The physical form of the test item was not stated but it seems logical that it was a powder.

However these data are merely indicative since there were no data at all indicating what was tested.