Registration Dossier
Registration Dossier
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EC number: 235-183-8 | CAS number: 12124-97-9
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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Non-GLP study conducted to validated method.
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- no
- Type of method:
- other: static light scattering
- Type of distribution:
- volumetric distribution
- 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:
- < 90 µm
- Distribution:
- 10 %
- No.:
- #2
- Size:
- < 227 µm
- Distribution:
- 50 %
- No.:
- #3
- Size:
- < 508 µm
- Distribution:
- 90 %
- Conclusions:
- In accordance with the CEN document, EN 481 as reference in the REACH Guidance Part R.7a on information requirements, 10% of the substance is within the inhalable fraction (< 100µm).
The substance has a low propensity to become airborne (AmBr Section 8.5.2 - Acute inhalation Kieran (1998) Key) with a maximum attainable concentration of 0.1 mg/L.
The substance is considered to be not inhalable and has a low fugacity. - Executive summary:
The granulometry of the substance was determined in an in-house study using a Mastersizer 2000.
10% of the volume distribution (D10) was measured to bebelow 90 µm, 50% of the volume distribution (D50) below 277 µm and 90% of the volume distribution (D 90) below 508 µm.
In accordance with the CEN document, EN 481 as reference in the REACH Guidance Part R.7a on information requirements, 10% of the substance is within the inhalable fraction (< 100 µm).
The substance has a low propensity to become airborne (AmBr Section 8.5.2 - Acute inhalation Kieran (1998) Key) with a maximum attainable concentration of 0.1 mg/L.
The substance is considered to be not inhalable and has a low fugacity.
Reference
Description of key information
Not inhalable. Low fugacity
10% of the substance is within the inhalable fraction (< 100 µm).
The substance has a low propensity to become airborne (AmBr Section 8.5.2 - Acute inhalation Kieran (1998) Key) with a maximum attainable concentration of 0.1 mg/L.
Additional information
The granulometry of the substance was determined in an in-house study using aMastersizer 2000.
10% of the volume distribution (D10) was measured to bebelow 90 µm,50% of the volume distribution (D50) below 277 µmand 90%of the volume distribution (D 90) below 508 µm.
In accordance with the CEN document, EN 481 as reference in the REACH Guidance Part R.7a on information requirements, 10% of the substance is within the inhalable fraction (< 100 µm).
The substance has a low propensity to become airborne (AmBr Section 8.5.2 - Acute inhalation Kieran (1998) Key) with a maximum attainable concentration of 0.1 mg/L.
The substance is considered to be not inhalable and has a low fugacity.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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