Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The tested sample was crushed prior to testing. Under normal conditions the substance is a lumpy, wet (ca. 11% H2O) material. Therefore the result of the test should be used with caution and hence the reliability code assigned.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
An ISO certified lab determinated the particle seize by seiving. The sieves used are classified ASTM’s sieves and the grain sizes are from 0,020mm to 3,36 mm.
GLP compliance:
no
Remarks:
other quality assurance
Type of distribution:
counted distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
The samples were crushed prior to testing.

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:
D50
Mean:
41 µm
Remarks on result:
other: result of sample 10TT01254
Percentile:
other: D80
Mean:
59 µm
Remarks on result:
other: result of sample 10TT01254

Any other information on results incl. tables

Size

 

10TT01254

mesh

 mm

%

 

5

 

6

3.35

 

8

2.38

 

16

1.19

 

20

0.841

 

30

0.595

0.01

40

0.42

0.01

50

0.297

0.01

140

0.105

4.45

200

0.074

9.01

325

0.044

13.85

 

0.02

70.79

 

-0.02

1.88

Sum

 

100.00

Applicant's summary and conclusion

Conclusions:
Sample 10TT01254 has a D50 = 41 micrometer. Nevertheless the result of the test should be used with caution since the tested sample was crushed prior to testing.