multi-walled carbon nanotube

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The NanoRelease Project is intended to support the development of methods to understand the release of nanomaterials used in products. To do this, the Project will: (1) examine full life cycles of nanomaterials in products; (2) work through specific release scenarios at key exposure points of the life cycle; (3) organize existing material characteristics data and measurement…

On May 6, 2011, the U.S. Environmental Protection Agency (EPA) promulgated a final significant new use rule (SNUR) under Section 5(a)(2) of the Toxic Substances Control Act (TSCA) for the chemical substance identified generically as multi-walled carbon nanotubes (MWCNT), which was the subject of premanufacture notice (PMN) P-08-199. Under the final SNUR, persons intending to manufacture, import, or process MWCNT for a use that is designated as a significant new use by the final rule must notify EPA at least 90 days before commencing that activity. EPA states that it believes the final rule is necessary “because the chemical substance may be hazardous to human health,” and the required notification would provide EPA with the opportunity to evaluate the intended use and, if necessary, to prohibit or limit that activity before it occurs. The final rule will be effective June 6, 2011.…

Continue Reading EPA Issues Final SNUR for Certain Multi-Walled Carbon Nanotubes

On September 17, 2010, the U.S. Environmental Protection Agency (EPA) issued final significant new use rules (SNUR) for two chemical substances that were the subject of premanufacture notices (PMN). The two chemical substances are identified generically as multi-walled carbon nanotubes (MWCNT) (PMN P08177) and single-walled carbon nanotubes (SWCNT) (PMN P08328). Persons who intend to manufacture, import, or process either of these substances for a use that is designated as a significant new use by the final rule must notify EPA at least 90 days before commencing that activity. EPA states that it believes the SNURs are necessary because these chemical substances may be hazardous to human health and the environment. The required notification would provide EPA with the opportunity to evaluate the intended use and, if necessary, to prohibit or limit that activity before it occurs. The final rule is effective October 18, 2010.…

Continue Reading EPA Issues Final SNURs for Carbon Nanotubes