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Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 2010-02-25 to 2010-04-09
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted by skilled laboratory according to standardised guideline.

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: EN 15051: workplace atmospheres. Measurement of dustiness of bulk materials. requirements and test methods.
GLP compliance:
no
Type of distribution:
other: dustiness classification

Test material

Reference
Name:
Unnamed
Type:
Constituent

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.

Any other information on results incl. tables

   Mean value  Standard deviation  COV (%)           Dustiness classification
         Very low  Low Moderate   High
Inhalable dustiness mass fraction (mg/kg)  5  0  9,1  x      
Thoracic dustiness mass fraction (mg/kg)  2  0  9,5  x      
Respirable dustiness mass fraction (mg/kg)  1  0  0,5  x      
Bulk density (kg/m3)  790  4  0,5        
Moisture content (%)  1,506  0,108  7,2        

Applicant's summary and conclusion

Conclusions:
Paramethoxyphenol flakes as provided by the lead registrant have been shown to present a very low dustiness when tested in the rotative drum method of the EN 15051 standard.