Standards & Guides
The main guides and standards of interest for the proper characterization of nanomaterials within a regulatory framework are listed here. More information can be found directly by consulting the links given.
NANOMATERIALS IDENTIFICATION
Guidance on the implementation of the Commission Recommendation 2022/C 229/01 on the definition of nanomaterial
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OECD Test No. 125: Nanomaterial Particle Size and Size Distribution of Nanomaterials
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Methodological note DGCCRF & ANSM - Analysis of nanoparticles and characterization of nanomaterials in consumer products
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ISO 19749:2021 "Nanotechnologies - Determination of particle size and shape distribution by scanning electron microscopy".
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ISO 21363:2020 "Nanotechnologies - Determination of particle size and shape distribution by transmission electron microscopy".
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CHARACTERIZATION OF THE MAIN PHYSICO-CHEMICAL PROPERTIES OF NANOMATERIALS
General
FD ISO/TR 18196 "Nanotechnologies - Matrix of measurement methods for manufactured nano-objects".
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Review of available analytical methods for characterizing nano-objects, their aggregates and agglomerates to meet regulatory requirements
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EFSA - Guidance on technical requirements for regulated food and feed product applications to establish the presence of small particles including nanoparticles
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SCCS - Guidance on the safety assessment of nanomaterials in cosmetics - 2nd revision
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Size distribution
ISO/TS 23151:2021 "Nanotechnologies - Particle size distribution for cellulose nanocrystals".
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ISO/TS 21346:2021 "Nanotechnologies - Characterization of individualized cellulose nanofibril samples".
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NCI-NCL SOP - PCC-19: Asymmetric Flux-Force Fractionation
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Concentration
ISO/TS 24672:2023 "Nanotechnologies - Guidelines for the measurement of nanoparticle number concentration".
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Surface characterization
OECD Test No. 124: Determination of the Volume Specific Surface Area of Manufactured Nanomaterials
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OECD Test No. 126: Determination of the Hydrophobicity Index of Nanomaterials Through an Affinity Measurement
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NCI-NCL SOP Surface Chemistry - PCC-2: Zeta Potential
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NCI-NCL SOP Surface Chemistry - PCC-17: Quantification of the surface coating of metallic nanoparticles by thermogravimetric analysis
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Stability
OECD Test No. 318: Dispersion Stability of Nanomaterials in Simulated Environmental Media
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For further informationFor more information, please consult the following resources:
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