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Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 01 September 2020 Experimental completion date: 10 September 2020
Reliability:
1 (reliable without restriction)
Qualifier:
equivalent or similar to guideline
Guideline:
other: European Commission Guidance Document EUR 20268 'Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances' (2002)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
sieving
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Identification: AthlosTM 200 Carbon Nano Structures
Chemical name: Branched and cross-linked multi-walled carbon nanotubes with <2% Polyethylene glycol
CAS No.: Not applicable
EC No.: 951-407-3
Appearance/Physical State: Black pellets
Batch number: V20169
Purity: 98.2%
Expiry date: 17 June 2025
Storage conditions: Room temperature in the dark
Key result
Percentile:
other: 0.473
Mean:
< 100 µm
St. dev.:
0
Conclusions:
The percentage of test item having an inhalable particle size of less than 100 μm was determined to be 0.473%. Therefore, the test item was considered to be essentially non-inhalable.
Executive summary:

The proportion of test item having an inhalable particle size of less than 100 μm was determined by a sieve method to be 0.473%, using a procedure designed to be compatible with the European Commission Technical Guidance Document EUR 20268 'Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances' (2002). Therefore, the test item was considered to be essentially non-inhalable.

Description of key information

The percentage of test item having an inhalable particle size of less than 100 μm was determined to be 0.473%. Therefore, the test item was considered to be essentially non-inhalable.

Additional information