Home > Nanotechnology Columns > Bergeson & Campbell, P.C. > RAC Adopts Opinion on Harmonized Classification and Labeling for MWCNTs
 |
Lynn L. Bergeson Managing Director Bergeson & Campbell, P.C. |
Abstract:
The European Chemicals Agency (ECHA) announced on March 22, 2022, that the Committee for Risk Assessment (RAC) recently adopted ten opinions on harmonized classification and labeling (CLH), including an opinion for multi-walled carbon nanotubes (MWCNT).
March 24th, 2022
RAC Adopts Opinion on Harmonized Classification and Labeling for MWCNTs
The European Chemicals Agency (ECHA) announced on March 22, 2022, that the Committee for Risk Assessment (RAC) recently adopted ten opinions on harmonized classification and labeling (CLH), including an opinion for multi-walled carbon nanotubes (MWCNT). See https://echa.europa.eu/-/highlights-from-march-rac-and-seac-meetings According to the annex to ECHA's announcement, MWCNTs possess properties that make them useful for industrial applications in new or enhanced materials and products (e.g., tensile strength, electrical and thermal conductivity). See https://echa.europa.eu/documents/10162/11395738/news_annex_rac_seac_march_22_new.pdf/351dc7fe-b7b0-895d-8015-ade85dba5fc2?t=1647930345807 According to the annex, MWCNTs are used in antistatic and electro-paintable thermoplastics, anti-fouling coatings, batteries (Li-ion), textiles, structural composites (e.g., for windmill blades and high performance sporting goods), and possibly printed electronics (conductive inks) and conductive coatings for displays and touch screens. The annex notes that carbon nanotubes (CNT) are used in thin heat mats, gas- and biosensors, and high-durability epoxy-paints. The substances have no existing entry in Annex VI of the Classification, Labelling and Packaging (CLP) regulation. The annex states: "RAC agreed to Germany's proposal to classify MWCNTs as substances that may cause cancer via inhalation (Carc. 1B; H350i) and cause damage to the lungs via inhalation (STOT RE 1; H372). RAC also agreed to add specific concentration limits of C >1 % for STOT RE 1 and 0.1 > C < 1 % for STOT RE 2." ECHA will send the RAC opinions to the European Commission (EC) for its decision. Harmonized classifications are listed in CLP Annex VI and should be applied by all manufacturers, importers, or downstream users of listed substances and of mixtures containing such substances.
Bookmark:
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||