Registration Dossier
Registration Dossier
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EC number: 215-277-5 | CAS number: 1317-61-9
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
Description of key information
The test material triiron tetraoxide is not considered as nanomaterial, as 40 +/- 2.9% of all particles of the test material with an equivalent circle diameter (ECD) are between 1 nm and 100 nm.
Additional information
Triiron tetraoxide grades are not nanomaterials, according to the EU recommendation of the definition of a nanomaterial 2011/696/EU, Official Journal of the European Union. The particle size distribution was determined by Image Analysis in accordance with the Council Regulation (EC JRC73260, nanomaterial). The test method is in all essential parts identical with the OECD Guideline, Test no. 110, method B.
Definition:
"Nanomaterial means a natural, incidental or manufactured material containing particles, in an unbound state or as an aggregate or as an agglomerate and where for 50% or more of the particles in the number size distribution, one or more external dimension is in the size range 1 nm - 100 nm."
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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