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EC number: 940-884-3 | 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
- Study period:
- Analysis start date 2017-03-28. Analysis end date 2017-04-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 4497:1983 Metallic powders -- Determination of particle size by dry sieving
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- ISO 13320-1:1999
- Type of method:
- sieving
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 170105
ISO 4497:1983
- Particle size distribution determined by dry sieving
- Treatment of test material prior to testing: Analysis on "as received" basis
ISO 13320-1:1999
- Particle size distribution by laser diffraction method
- Treatment of test material prior to laser diffraction (test 2): Particles >500 µm were sieved off before testing due to the capactity of the equipment
Evaluation: WINDOW 5.8.4., FREE Stabil. 1
- Reference measurement: 03-28 13:38:01
- Contamination: 0.00 %
Trigger condition: PQC no focus, opt 0.1
- Time base: 100.00 ms
- Start: c.opt >= 1 %
- Valid: always
- Stop: 5s C.opt <= 0.7 % or 99s real time
Product: Fe-pulver R4
- Density: 1.00 g/cm3
- Shape factor: 1.00
- Copt = 10.23 %
Dispesing method : 50 %, 1.5 mm vibricontrol, 6 %, 10
- Cascade: 0
- Pressure: 3.03 bar, vaccum: 123.00 mbar
- Revolution: 0.00 %
- Doser: VIBRI, feed rate: 50.00 % - Mass median aerodynamic diameter:
- 62.39 µm
- Percentile:
- D10
- Mean:
- 4.12 µm
- Remarks on result:
- other: Result from laser diffraction
- Key result
- Percentile:
- D50
- Mean:
- 62.39 µm
- Remarks on result:
- other: Result from laser diffraction
- Percentile:
- D90
- Mean:
- 183.97 µm
- Remarks on result:
- other: Result from laser diffraction
- Percentile:
- other: 10.57 %
- Mean:
- < 4.4 µm
- Remarks on result:
- other: Result from laser diffraction
- Percentile:
- other: 10.40 %
- Mean:
- < 4.4 µm
- Remarks on result:
- other: Particles > 500 µm were sieved off before laser diffraction, equating to 1.6 % of the particles. Therefore, this result represents the the particle size of the initial sample without sieving.
- Percentile:
- other: 19.06 %
- Mean:
- < 10 µm
- Remarks on result:
- other: Result from laser diffraction
- Percentile:
- other: 18.76 %
- Mean:
- < 10 µm
- Remarks on result:
- other: Particles > 500 µm were sieved off before laser diffraction, equating to 1.6 % of the particles. Therefore, this result represents the the particle size of the initial sample without sieving.
- Percentile:
- other: 67.12 %
- Mean:
- < 102 µm
- Remarks on result:
- other: Result from laser diffraction
- Percentile:
- other: 66.05 %
- Mean:
- < 102 µm
- Remarks on result:
- other: Particles > 500 µm were sieved off before laser diffraction, equating to 1.6 % of the particles. Therefore, this result represents the the particle size of the initial sample without sieving.
- No.:
- #1
- Size:
- > 500 µm
- Distribution:
- 1.6 %
- Remarks on result:
- other: Result from dry sieving
- No.:
- #2
- Size:
- > 212 - <= 500 µm
- Distribution:
- 14.8 %
- Remarks on result:
- other: Result from dry sieving
- No.:
- #3
- Size:
- > 150 - <= 212 µm
- Distribution:
- 14.8 %
- Remarks on result:
- other: Result from dry sieving
- No.:
- #4
- Size:
- > 106 - <= 150 µm
- Distribution:
- 12.7 %
- Remarks on result:
- other: Result from dry sieving
- No.:
- #5
- Size:
- > 75 - <= 106 µm
- Distribution:
- 11 %
- Remarks on result:
- other: Result from dry sieving
- No.:
- #6
- Size:
- > 45 - <= 75 µm
- Distribution:
- 11.1 %
- Remarks on result:
- other: Result from dry sieving
- No.:
- #7
- Size:
- < 45 µm
- Distribution:
- 34 %
- Remarks on result:
- other:
- Remarks:
- Result from dry sieving
- Conclusions:
- The particle size distribution of the test item was assessed in accordance with ISO 4497:1983 ans ISO 13320-1:1999. Dry sieving of the sample determined that 1.6 % of the particles were > 500 µm. Laser diffraction determined the mass median diameter was to be 62.39 µm. With regards to the inhalation potential, laser diffraction determined that 66.05 % of the particles are smaller than 102 µm, 18.76 % are smaller than 10 µmn and 10.40 % are smaller than 4.40 µm.
- Endpoint:
- particle size distribution (granulometry)
- Remarks:
- CS SWeRF
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- DATE SAMPLES RECEIVED: 23.10.17 DATE SAMPLES ANALYSED: 25.10.17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Qualifier:
- according to guideline
- Guideline:
- other: Powder samples are analysed by laser diffraction
- Version / remarks:
- Powder samples are analysed by laser diffraction using the internal method SOP-017 “Particle Size Distribution by Laser Diffraction”. The technique for laser diffraction analysis is adopted from ISO 13320:2009 “Particle size analysis – Laser diffraction methods”.
- Deviations:
- not applicable
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- other: Portions of sieved samples are finely ground to create samples of uniform particle size
- Type of distribution:
- other: Quantification of any crystalline silica detected in the samples is carried out using an in-house method based on reference standards, drift correction and a calibration for calculating unknown concentrations.
- Key result
- Percentile:
- other: SWeRF Petrit T Lot 17100300
- Mean:
- ca. 0 other: SWeRF Cryst. Silica (%)
- Remarks on result:
- other: Calculation of SWeRF from a Particle Size Distribution
- Remarks:
- The probability of a particle reaching the alveoli region of the lung is a function of its aerodynamic size (Dae) and the probability specified in the EN481 standard1. The principle behind SWeRF combines the particle size (determined by laser diffraction) and the probability factor, integrated across the complete particle size distribution. It is important to recognise that the EN481 probability is based on aerodynamic size as opposed to the spherical equivalent diameter measured by laser diffraction techniques A size weighting is then applied based on the probability function given in EN481 and expressed as a SWeRF percentage of the bulk. The methodology employed for the calculation of SWeRF is derived from “SWeRF – A Method for Estimating the Relevant Fine Fraction in Bulk Materials for Classification and Labelling Purposes
- Key result
- Percentile:
- other: SWeRF Petrit T Lot 17100406
- Mean:
- ca. 0.1 other: SWeRF Cryst. Silica (%)
- Remarks on result:
- other: Calculation of SWeRF from a Particle Size Distribution
- Remarks:
- The probability of a particle reaching the alveoli region of the lung is a function of its aerodynamic size (Dae) and the probability specified in the EN481 standard1. The principle behind SWeRF combines the particle size (determined by laser diffraction) and the probability factor, integrated across the complete particle size distribution. It is important to recognise that the EN481 probability is based on aerodynamic size as opposed to the spherical equivalent diameter measured by laser diffraction techniques A size weighting is then applied based on the probability function given in EN481 and expressed as a SWeRF percentage of the bulk. The methodology employed for the calculation of SWeRF is derived from “SWeRF – A Method for Estimating the Relevant Fine Fraction in Bulk Materials for Classification and Labelling Purposes
- Key result
- Percentile:
- other: SWeRF Petrit T Lot 17100411
- Mean:
- ca. 0.1 other: SWeRF Cryst. Silica (%)
- Remarks on result:
- other: Calculation of SWeRF from a Particle Size Distribution
- Remarks:
- The probability of a particle reaching the alveoli region of the lung is a function of its aerodynamic size (Dae) and the probability specified in the EN481 standard1. The principle behind SWeRF combines the particle size (determined by laser diffraction) and the probability factor, integrated across the complete particle size distribution. It is important to recognise that the EN481 probability is based on aerodynamic size as opposed to the spherical equivalent diameter measured by laser diffraction techniques A size weighting is then applied based on the probability function given in EN481 and expressed as a SWeRF percentage of the bulk. The methodology employed for the calculation of SWeRF is derived from “SWeRF – A Method for Estimating the Relevant Fine Fraction in Bulk Materials for Classification and Labelling Purposes
- Key result
- Percentile:
- other: SWeRF Petrit T Lot 17100300
- Mean:
- ca. 2.7 other: SWeRF Bulk Powder (%)
- Remarks on result:
- other: Calculation of SWeRF from a Particle Size Distribution
- Remarks:
- The probability of a particle reaching the alveoli region of the lung is a function of its aerodynamic size (Dae) and the probability specified in the EN481 standard1. The principle behind SWeRF combines the particle size (determined by laser diffraction) and the probability factor, integrated across the complete particle size distribution. It is important to recognise that the EN481 probability is based on aerodynamic size as opposed to the spherical equivalent diameter measured by laser diffraction techniques A size weighting is then applied based on the probability function given in EN481 and expressed as a SWeRF percentage of the bulk. The methodology employed for the calculation of SWeRF is derived from “SWeRF – A Method for Estimating the Relevant Fine Fraction in Bulk Materials for Classification and Labelling Purposes
- Key result
- Percentile:
- other: SWeRF Petrit T Lot 17100406
- Mean:
- ca. 3.2 other: SWeRF Bulk Powder (%)
- Remarks on result:
- other: Calculation of SWeRF from a Particle Size Distribution
- Remarks:
- The probability of a particle reaching the alveoli region of the lung is a function of its aerodynamic size (Dae) and the probability specified in the EN481 standard1. The principle behind SWeRF combines the particle size (determined by laser diffraction) and the probability factor, integrated across the complete particle size distribution. It is important to recognise that the EN481 probability is based on aerodynamic size as opposed to the spherical equivalent diameter measured by laser diffraction techniques A size weighting is then applied based on the probability function given in EN481 and expressed as a SWeRF percentage of the bulk. The methodology employed for the calculation of SWeRF is derived from “SWeRF – A Method for Estimating the Relevant Fine Fraction in Bulk Materials for Classification and Labelling Purposes
- Key result
- Percentile:
- other: SWeRF Petrit T Lot 17100411
- Mean:
- ca. 2.9 other: SWeRF Bulk Powder (%)
- Remarks on result:
- other: Calculation of SWeRF from a Particle Size Distribution
- Remarks:
- Calculation of SWeRF from a Particle Size Distribution
- Conclusions:
- In accordance with the CLP Regulation, industrial minerals producers have conducted a Review and Hazard Assessment of the health effects of respirable crystalline silica and have jointly determined it best and appropriate to classify crystalline silica (fine fraction) (quartz (fine fraction) and cristobalite (fine fraction)) as STOT RE 1 for the silicosis hazard. This is because particles of crystalline silica (fine fraction) may become airborne during handling and use in the workplace, creating respirable crystalline silica (RCS).
STOT refers to Specific Target Organ Toxicity. RE refers to “Repeated Exposure”. Based upon scientific evidence, it is generally necessary to inhale significant quantities of RCS in an occupational setting for prolonged and repeated periods of time before any possible long-term health effect may occur.
This classification applies to the fine fraction of quartz and cristobalite only, because it is scientifically demonstrated that it is only this fraction of crystalline silica, when made airborne, which may cause health effects. It is also in compliance with the CLP Regulation which allows consideration of the physical form(s) or physical state(s) of substance or mixture.
As a consequence of this classification, mixtures and substances containing crystalline silica (fine fraction), whether in the form of an identified impurity, additive or individual constituent, are classified as:
STOT RE 1, if the crystalline silica (fine fraction) concentration is equal to, or greater than 10%;
STOT RE 2, if the crystalline silica (fine fraction) concentration is between 1 and 10%.
If the crystalline silica (fine fraction) content in mixtures and substances is below 1%, no classification is required.
Therefore, no classification for this substance is required - Executive summary:
Crystalline Silica* Content (bulk)
SWeRF
Ref
SampleDescription
R.I
Density (g/cm3)
Quartz(%)
Cristobalite(%)
Bulk Powder(%)
Cryst.Silica (%)
1
Petrit T Lot17100300
1.97
2.81
1.4
0.2
2.7
0.0
2
Petrit T Lot17100406
1.97
2.81
2.4
0.2
3.2
0.1
3
Petrit T Lot17100411
1.97
2.81
1.8
0.2
2.9
0.1
Referenceopen allclose all
Please see attached for the Result Summary: This contains graphs that can't be added in IUCLID
Description of key information
The particle size distribution of the test item was assessed in accordance with ISO 4497:1983 ans ISO 13320-1:1999. Dry sieving of the sample determined that 1.6 % of the particles were > 500 µm. Laser diffraction determined the mass median diameter was to be 62.39 µm. With regards to the inhalation potential, laser diffraction determined that 66.05 % of the particles are smaller than 102 µm, 18.76 % are smaller than 10 µmn and 10.40 % are smaller than 4.40 µm.
Additional information
No 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.