Registration Dossier
Registration Dossier
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EC number: 231-095-9 | CAS number: 7439-88-5
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Version / remarks:
- Screening Test
- Deviations:
- no
- Principles of method if other than guideline:
- The method used is based on a procedure designed to comply with that given in 'Particle size distribution, fibre length and diameter distribution', June 1996 European Commission technical guidance document, which satifies the requirements of OECD Guideline 110.
Test item was sieved for approximately 30 minutes on an Inclyno sieve shaker using a sieve with an aperture size of 100µm. The mass of the test item passing through the sieve was measured. - GLP compliance:
- yes (incl. QA statement)
- Type of method:
- determination of fibre length and diameter distributions
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- No.:
- #1
- Size:
- < 100 µm
- Distribution:
- 97.9 %
- Conclusions:
- In an OECD Granulometry screening test the proportion of Iridum < 100 μm was 97.9%.
- Executive summary:
The result is from a GLP compliant study, following OECD guideline 110 (Harlan 2011) and is considered suitable for use as the key study for this endpoint. The proportion of iridum < 100 μm was 97.9 %.
Reference
The results of the sieving procedure are shown below:
Measurement |
Result |
Mass of test item transferred to sieve |
10.01g |
Mass of test item passed through sieve |
9.89g |
Proportion of test item <100µm |
97.9 |
Description of key information
In an OECD Granulometry screening test, the proportion of Iridum < 100 μm was 97.9%.
Additional information
The result is from a GLP compliant study, following OECD guideline 110 (Harlan 2011) and is considered suitable for use as the key study for this endpoint. The proportion of iridum < 100 μm was 97.9 %.
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