Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | CAS number: -
Nanomaterial dustiness
Administrative data
- Endpoint:
- nanomaterial dustiness
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March 2022
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- EN 15051-2
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2022
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EN 15051-2 (Workplace exposure. Measurement of the dustiness of bulk materials - Rotating drum method)
- Deviations:
- no
- GLP compliance:
- no
- Sampling:
- - Short description of the method and its scientific and technical basis: The inhalable, thoracic and respirable fraction is determined for the sample using the rotating drum method according to European standard EN 15051.
- Description of reference measurements and samples
- Technical equipment: 15051 rotating drum dustiness tester
- Reagents (if applicable): Not applicable.
- Preparation of test samples and references (including the use of energy and dispersants)
- Sampling procedure (i.e., selection of samples): The sample has been divided in eight equal lots using a rotary riffler. The bulk density of the sample is determined. This bulk density is used to convert the sample mass to the required volume of approx. 35 cm3 and the sample is further divided to the required 35 cm3. These sub mots are accurately weighed into the rotating drum.
- Methods for conditioning (if applicable): Not applicable.
- Measurement procedure: The airborne dust released is drawn from the dust generation section, through the dust transfer section, into the special designed foam/filter assembly with successively 20 pores per
inch foam, 80 pores per inch foam and a glass fibre backing filter. The complete procedure is
repeated several times with fresh sample material and clean filters, each dustiness measurement
is preceded by a blank run. The dust sampling system of the EN 15051-2 Rotating Drum method is constructed in such a way that the largest airborne particles are collected on a foam filter with 20 pores per inch foam.
Smaller airborne particles pass through this filter and are collected on a second foam filter with
80 pores per inch foam. Only the smallest airborne particles pass through both foam filters and
are collected on a glass fibre backing filter. The dust collected on the glass fibre backing filter
is presented as the respirable fraction
- Sample mass: ~18 g
Test material
- Reference substance name:
- Not applicable
- IUPAC Name:
- Not applicable
- Reference substance name:
- Calcium oxide
- EC Number:
- 215-138-9
- EC Name:
- Calcium oxide
- Cas Number:
- 1305-78-8
- Molecular formula:
- CaO
- IUPAC Name:
- oxocalcium
- Reference substance name:
- Quartz (SiO2)
- EC Number:
- 238-878-4
- EC Name:
- Quartz (SiO2)
- Cas Number:
- 14808-60-7
- Molecular formula:
- SiO2
- IUPAC Name:
- Quartz
- Reference substance name:
- Zinc sulphide
- EC Number:
- 215-251-3
- EC Name:
- Zinc sulphide
- Cas Number:
- 1314-98-3
- Molecular formula:
- SZn
- IUPAC Name:
- thioxozinc
- Reference substance name:
- Silicon dioxide
- EC Number:
- 231-545-4
- EC Name:
- Silicon dioxide
- Cas Number:
- 7631-86-9
- Molecular formula:
- O2Si
- IUPAC Name:
- Silicon dioxide
- Reference substance name:
- Carbon black
- EC Number:
- 215-609-9
- EC Name:
- Carbon black
- Cas Number:
- 1333-86-4
- Molecular formula:
- C
- IUPAC Name:
- Carbon black
- Test material form:
- solid: nanoform
Constituent 1
Constituent 2
Constituent 3
Constituent 4
Constituent 5
Constituent 6
Results and discussion
Dustiness indexopen allclose all
- Key result
- Mean:
- 183 mg/kg
- Remarks on result:
- other: Respirable fraction
- Key result
- Mean:
- 2 839 mg/kg
- Remarks on result:
- other: Thoracic fraction
- Key result
- Mean:
- 5 905 mg/kg
- Remarks on result:
- other: Inhalable fraction
Applicant's summary and conclusion
- Conclusions:
- The substance had an inhalable fraction with a dustiness of 5905 mg/kg (high classification), a thoracic fraction with a dustiness of 2839 mg/kg (high classification) and a respirable fraction with a dustiness of 183 mg/kg (moderate classification).
- Executive summary:
The substance was tested according to guideline EN 15051 Rotating Drum Method (method 2).
18 g of the test substance was analysed, the laboratory humidity was 54%, the laboratory temperature was 22 degrees celcius, the moisture content was 0.87% and the bulk density was 525 kg/m3.
The substance had an inhalable fraction with a dustiness of 5905 mg/kg (high classification), a thoracic fraction with a dustiness of 2839 mg/kg (high classification) and a respirable fraction with a dustiness of 183 mg/kg (moderate classification).
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
