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:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2013
Report Date:
2013

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Sieving
Version / remarks:
Internal Compny procedure
GLP compliance:
no
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
other: seiving

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Results and discussion

Remarks on result:
other: Obtained internally by seiving
Particle sizeopen allclose all
Percentile:
other: estimate by seiving
Mean:
> 0 - < 2 mm
Remarks on result:
other: Calcium hydride K
Percentile:
other: estimate by seiving
Mean:
> 1 - < 20 mm
Remarks on result:
other: calcium hydride B
Percentile:
other: estimate by seiving
Mean:
> 0.5 - < 2 mm
Remarks on result:
other: calcium hydride S
Percentile:
other: estimate by seiving
Mean:
> 10 - < 100 mm
Remarks on result:
other: calcium hydride O
Percentile:
other: estimate by seiving
Mean:
< 150 µm
Remarks on result:
other: calcium hydride M

Applicant's summary and conclusion

Conclusions:
Calcium hydride particle size is measured using the seiving methodology. Five classes have been determined: K (0-2 mm), B (1-20 mm), M (min 99% < 150 µm), O (10-100 mm), S (0.5-2 mm).