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Diss Factsheets
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EC number: 947-204-4 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
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:
- DIN 55992-1 (Determination of a parameter for the dust formation of pigments and extenders - Part 1: Rotation method)
- Deviations:
- yes
- Remarks:
- DMT modified the Heubach dust meter in a way that a seven-stage cascade impactor was inserted instead of the filter. This will allow to separate inhalable, thoracic and avleolar dust fractions as defined in DIN EN 481
- GLP compliance:
- no
- Type of method:
- rotating drum method
- Type of particle tested:
- agglomerate
- Remarks:
- dried filter cake
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- Due to wet sample, a preliminary drying was conducted for 24h according the recommendation of the sponsor (first stage drying) before starting the test. The remaining humidity of the substance was 5.89% as determined by drying the sample in a furnace in accordance with DIN 18121-1: a part of the sample (first stage dried) was weighed in a weighing glass and then dried in the drying cupboard at approx. 105°C until constancy of weight was attained. The sample was weighed after cooling in a desiccator for determing the residual moisture content.
- Mass median aerodynamic diameter:
- 31.8 µm
- Geometric standard deviation:
- 1.9
- No.:
- #1
- Size:
- < 100 µm
- Distribution:
- ca. 7 %
- Remarks on result:
- other: total dustiness
- No.:
- #2
- Size:
- < 100 other: aerodynamic diameter (µm)
- Distribution:
- ca. 4.04 %
- Remarks on result:
- other: inhalable fraction
- No.:
- #3
- Size:
- < 10 other: aerodynamic diameter (µm)
- Distribution:
- ca. 0.36 %
- Remarks on result:
- other: thoracic fraction
- No.:
- #4
- Size:
- < 4 other: aerodynamic diameter (µm)
- Distribution:
- ca. 0.08 %
- Remarks on result:
- other: respirable (alveolar) fraction
- Conclusions:
- As a conclusion, for the sample "RESHS 316 REACH", the respirable fraction represent 0.08 % of used quantity of the substance under the modified Heubach procedure.
- Executive summary:
Examinations were performed to determine the dustiness of a substance sample designated as "RESHS 316 REACH ". The objective of these examinations was to determine the dust fractions of this substance. These are the dust fractions which are defined in DIN EN 481 as the inhalable fraction, thoracic fraction and the respirable fraction.
The modified Heubach procedure was applied. In the process, the substance sample was mechanically stressed in a rotating drum (dust generation device), and both the dust already contained in this sample and the dust generated due to abrasion were removed from the dust generation device by an air current. The proportion of dust separated and considered as dust with the ability to become airborne was fed into a seven-stage cascade impactor connected to the dust generation device. Particle size classification was conducted by subsequent weighing of the respective dust masses deposited on the individual cascade stages reflecting certain particle size ranges.
As a conclusion, for the sample "RESHS 316 REACH", the respirable fraction represent 0.08 % of used quantity of the substance under the modified Heubach procedure.
- 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:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- The substance was dried at 100°C until constat weight and aggregates were crushed to obtain primary particles.
- Remarks on result:
- not measured/tested
- Key result
- Percentile:
- D90
- Mean:
- ca. 390.23 µm
- St. dev.:
- 0
- Remarks on result:
- other: standard deviation not reported
- Key result
- Percentile:
- D50
- Mean:
- ca. 142.5 µm
- St. dev.:
- 0
- Remarks on result:
- other: standard deviation not reported
- Key result
- Percentile:
- D10
- Mean:
- ca. 4.8 µm
- St. dev.:
- 0
- Remarks on result:
- other: standard deviation not reported
- Conclusions:
- The test substance has the following particle size distribution: D10 = 4.80 μm; D50 = 142.50 μm; D90 = 390.23 μm.
- Executive summary:
The particle size distribution of the test substance RESHS 316 REACH was determined via laser diffraction.
The test substance has the following particle size distribution: D10 = 4.80 μm; D50 = 142.50 μm; D90 = 390.23 μm.
Referenceopen allclose all
total dustiness 69.98 mg/g
inhalable fraction 40.42 mg/g (4.04%)
thoracic fraction 3.59 mg/g (0.36%)
respirable (alveolar) fraction 0.79 mg/g (0.08%)
Description of key information
The test substance has the following primary particle size distribution: D10 = 4.80 μm; D50 = 142.50 μm; D90 = 390.23 μm.
The total dustiness and the respirable fraction represent 7.00% and 0.08%, respectively, as determined with the modified Heubach procedure.
Additional information
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.