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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
other information
Study period:
29 Mar - 7 Jun 2001
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Reason / purpose for cross-reference:
reference to same study
Qualifier:
no guideline followed
GLP compliance:
no
Percentile:
D50
Mean:
> 18 - < 460 µm
Remarks on result:
other: No source field for Standard deviation.
No.:
#1
Size:
< 500 µm
Distribution:
52 %
Remarks on result:
other: 1st probe
No.:
#2
Size:
< 250 µm
Distribution:
31 %
Remarks on result:
other: 1st probe
No.:
#3
Size:
< 125 µm
Distribution:
24 %
Remarks on result:
other: 1st probe
No.:
#4
Size:
< 63 µm
Distribution:
18 %
Remarks on result:
other: 1st probe
No.:
#5
Size:
< 32 µm
Distribution:
16 %
Remarks on result:
other: 1st probe
No.:
#6
Size:
< 250 µm
Distribution:
100 %
Remarks on result:
other: 2nd probe
No.:
#7
Size:
< 63 µm
Distribution:
100 %
Remarks on result:
other: 3rd probe
No.:
#8
Size:
< 32 µm
Distribution:
87 %
Remarks on result:
other: 3rd probe
No.:
#9
Size:
< 20 µm
Distribution:
56 %
Remarks on result:
other: 3rd probe

3 states of the dust forming substance with different particle size distributions.

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1 Aug 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
no guideline followed
Principles of method if other than guideline:
laser diffraction
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D50
Mean:
60.69 µm
Remarks on result:
not measured/tested
Remarks:
no st. dev. determined
Percentile:
D10
Mean:
10.73 µm
Remarks on result:
not measured/tested
Remarks:
no st. dev. determined
Percentile:
D90
Mean:
556.75 µm
Remarks on result:
not measured/tested
Remarks:
no st. dev. determined
Percentile:
D95
Mean:
783.28 µm
Remarks on result:
not measured/tested
Remarks:
no st. dev. determined
Percentile:
other: D98
Mean:
1 037.04 µm
Remarks on result:
not measured/tested
Remarks:
no st. dev. determined

Details of particle size distribution:

Percentile

Diameter (µm)

Percentile

Diameter (µm)

Percentile

Diameter (µm)

Percentile

Diameter (µm)

D5

5.81

D30

31.10

D55

71.01

D80

268.43

D10

10.73

D35

37.30

D60

83.65

D85

401.37

D15

15.39

D40

44.18

D65

100.21

D90

556.75

D20

20.26

D45

51.88

D70

124.63

D95

783.28

D25

25.46

D50

60.69

D75

169.72

D98

1037.04

 

Particle density: 1.000 g/cm2

Specific Surface Area: 0.262 m2/g

Concentration: 0.0021%Vol

Obscuration: 2.66%

Surface Weighted Mean D[3,2]: 22.868 µm

Vol. Weighted Mean D[4,3]: 173.842 µm

Dispersant Name: none

Dispersant RI: 1.000

Presentation: Fraunhofer

Particle RI: 0.000

Span: 8.997

Uniformity: 2.42

Weighted Residual: 0.358%

Absorption: 0

No examination could be performed for optimal dispersion.

Description of key information

The particle size D50 = 60.69 µm.

D5 = 5.81 µm

D10 = 10.73 µm

D65 = 100.21 µm

D90 = 556.75 µm

Additional information

Laser diffraction method was applied.