Intertek is a multinational inspection, product testing and certification company headquartered in London, United Kingdom. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index. For more than 130 years, companies around the world have depended on Intertek to ensure the quality and safety of their products, processes and systems.
14 May, 2014 Intertek finalized the evaluation of the TUBALL samples and issued a Certificate confirming the high concentration (>75%) of single wall carbon nanotubes in TUBALL material. TUBALL is produced by OCSiAl under a unique patented technology of single wall carbon nanotubes synthesis presented earlier in the Institute of Materials (London) .
All the testing results are described in Certificate of Analysis (Certificate Number IWTN/COA/W663/001 (14 May 2014).