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Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
Internal study was performed.
GLP compliance:
not specified
Other quality assurance:
other: no data
Type of particle tested:
other: fibers
Specific details on test material used for the study:
no data
Remarks on result:
other: No quantitative data are available to fill in the field 'Mass median diameter' as D50 percentile or Standard deviation
Remarks:
No quantitative data are available to fill in the field 'Mass median diameter' as D50 percentile or Standard deviation
Remarks on result:
other: No quantitative data are available to fill in the field 'Mass median diameter' as D50 percentile or Standard deviation
Remarks:
No quantitative data are available to fill in the field 'Mass median diameter' as D50 percentile or Standard deviation

The mass fraction of WHO fiber is 0.047 % of the total mass of fibers + particles. The concentration is 0.022 million fibers/mg for WHO fibers and 0.030 million fibers/mg for all fibers and 85.7 million particles/mg. The concentration of fibres in this sample is very low and close to the detection limit.

Conclusions:
The mass fraction of WHO fiber is 0.047 % of the total mass of fibers + particles. The concentration is 0.022 million fibers/mg for WHO fibers and 0.030 million fibers/mg for all fibers and 85.7 million particles/mg. The concentration of fibres in this sample is very low and close to the detection limit.

Description of key information

In the mentioned study, the mass fraction of WHO fiber is 0.047 % of the total mass of fibers + particles. The concentration is 0.022 million fibers/mg for WHO fibers and 0.030 million fibers/mg for all fibers and 85.7 million particles/mg. The concentration of fibres in this sample is very low and close to the detection limit.

Additional information