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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:
2018-03-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
1981
Deviations:
no
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Deviations:
no
Qualifier:
according to
Guideline:
other: CIPAC MT 187
Version / remarks:
2009
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
signed 2017-02-28
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Details on test material:
Appearance: white/off-white

Results and discussion

Remarks on result:
not measured/tested
Particle sizeopen allclose all
Percentile:
D10
Mean:
3.3 µm
St. dev.:
0
Percentile:
D50
Mean:
18.1 µm
St. dev.:
0.99
Percentile:
D90
Mean:
101.1 µm
St. dev.:
6.36
Particle size distribution at different passages
Remarks on result:
not measured/tested

Any other information on results incl. tables

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

Test series 1:

D10:      3.3 µm

D50:      18.8 µm         (Median diameter)

D90:      105.6 µm

Test series 2:

D10:      3.3 µm

D50:      17.4 µm         (Median diameter)

D90:      96.6 µm

Average

D10:      3.3 µm

D50:      18.1 µm         (Median diameter)

D90:      101.1 µm

Final Results

The test item strontium oxide has a median particle size D50 = 18 µm, which was determined by laser diffraction measurement in accordance to inter alia ISO 13320 (2009) and CIPAC MT 187 (2009) method.

Applicant's summary and conclusion

Conclusions:
The test item Strontium oxide has following particle size distribution, which was determined by laser diffraction measurement in accordance to inter alia ISO 13320 (2009) and CIPAC MT 187 (2009) method:

D10: 3.3 µm
D50: 18.1 µm (Median diameter)
D90: 101.1 µm