Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
Phys chem testing was conducted between 10 March 2011 and 12 April 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP and in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not effect the quality of the relevant results.

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of distribution:
volumetric distribution

Test material

Constituent 1
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Identification: TM10-099
Description: dark blue powder
Batch number: MB-1
Date received: 4 March 2011
Expiry date: 4 March 2012
Storage conditions: room temperature in the dark

Results and discussion

Particle size
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 100 µm
Distribution:
37.5 %
Remarks on result:
other: Screening test
No.:
#2
Size:
< 10 µm
Distribution:
0.098 %
Remarks on result:
other: Definitive test
No.:
#3
Size:
< 5.5 µm
Distribution:
0.078 %
Remarks on result:
other: Definitive test
No.:
#4
Size:
< 2.4 µm
Distribution:
0.06 %
Remarks on result:
other: Definitive test
No.:
#5
Size:
< 1.61 µm
Distribution:
0.041 %
Remarks on result:
other: Definitive test
No.:
#6
Size:
< 0.307 µm
Distribution:
0.021 %
Remarks on result:
other: Definitive test

Any other information on results incl. tables

Measurement

Method

Result (%)

Proportion of test item having an inhalable particle size <100 µm

Sieve

37.5

Proportion of test item having a thoracic particle size <10.0 µm

Cascade Impactor

0.0982

Proportion of test item having a respirable particle size <5.5 µm

Cascade Impactor

0.0783

Discussion:

Too few particles were of a size less than 10.0 µm to allow accurate assessment of the mass median aerodynamic diameter.

Applicant's summary and conclusion

Conclusions:
37.5 %, 0.0982 % and 0.0783 % of the particles were determined to have a diameter smaller than 100 µm, 10 µm and 5.5 µm, respectively.
Executive summary:

The particle size distribution of the test item TM10-099 was determined in a valid GLP study in accordance with OECD TG No. 110.

In a screening study, the percentage of particles with a diameter smaller than 100 µm was determined to be 37.5% by the sieve method. In the definitive study, the cascade impactor method was used and the percentage of particles with a diameter smaller than 10 µm and 5.5 µm was determined to be 0.0982 and 0.0783 %, respectively