Dilutetium oxide silicate

Particle size distribution (Granulometry)

Link to relevant study record(s)

Reference

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

08 September 2017

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:

Particle size measurement using a Beckman Coulter 13320 light diffraction granulometer equipped with a liquid module.

GLP compliance:

no

Type of method:

Laser scattering/diffraction

Type of distribution:

volumetric distribution

Key result

Percentile:

D10

Mean:

0.36 µm

Remarks on result:

other: SD not reported

Key result

Percentile:

D50

Mean:

10.8 µm

Remarks on result:

other: SD not reported

Key result

Percentile:

D90

Mean:

52.6 µm

Remarks on result:

other: SD not reported

Other values reported:

D16 = 0.66 µm

D84 = 40.5 µm

D99 = 92.6 µm

D100 = 146.8 µm

Conclusions:

The particle size analysis was carried out based on an in-house method highly adapted to the test item using a Beckman Coulter 13320 light diffraction apparatus. The D10, D50 and D90 values were observed to be 0.36 µm, 10.8 µm and 52.6 µm, respectively.

Description of key information

Based on the particle size analysis carried out using an in-house method highly adapted to the test item, the D10, D50 and D90 values of a representative sample of lutetium oxide silicate were observed to be 0.36 µm, 10.8 µm and 52.6 µm, respectively, using a Beckman Coulter 13320 light diffraction apparatus (Klimisch 2, Paradis, 2017). These values are considered as the key values for lutetium oxide silicate.