The Nanofunctional and Nanocomposite Materials Laboratory (NNML) is part of the Institute of Nanoscience and Nanotechnology of NCSR "Demokritos". NNML is a fully equipped laboratory, accredited with four ISO Standards that surve the purposes of the project:

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​ISO 22197-1:2016 Test method for air-purification performance of semiconducting photocatalytic materials - Part 1: Removal of nitric oxide

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ISO 22197-2:2019 Test method for air-purification performance of semiconducting photocatalytic materials - Part 2: Removal of acetaldehyde

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ISO 27447:2019 Test method for antibacterial activity of semiconducting photocatalytic materials

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ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories