The Organisation for Economic Co-operation and Development (OECD) published on July 2, 2026, two new Test Guidelines (TG) for nanomaterials: Test No. 127: Dustiness determination of materials containing nano‑objects and their aggregates and agglomerates: OECD developed the TG to address the need for standardized dustiness test methods applicable to powders containing granular and fibrous nano-objects and their aggregates and agglomerates (NOAA). The objective of the TG is to provide methods...
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November 16, 2023
NanoHarmony Releases Tool to Guide Stakeholders through OECD TG/GD Development Process
NanoHarmony announced on November 10, 2023, the release of the NanoHarmony OECD TG/GD Process Mentor, an interactive web-based tool to guide stakeholders through the development process of Organization for Economic Cooperation and Development (OECD) Test Guidelines (TG) and Guidance Documents (GD). NanoHarmony states that it developed the NanoHarmony OECD TG/GD Process Mentor to highlight the involvement of key institutions in the OECD Test Guidelines Programme, and their incentives to take part...
October 25, 2023
NanoHarmony Publishes White Paper on OECD Test Guideline Development
NanoHarmony published on October 13, 2023, a white paper entitled From Science to Regulation: The NanoHarmony White Paper on Test Guideline Development. NanoHarmony states that the Organization for Economic Cooperation and Development’s (OECD) Test Guidelines (TG) Programme helps to develop harmonized agreed methods that can be used by OECD member countries to implement their regulatory regimes. According to NanoHarmony, for regulations to be effective and for manufacturers to be able to...
July 11, 2023
OECD Publishes New, Corrected TGs for Nanomaterials and Workshop Report on How to Prepare TGs for Emerging Technologies
The Organization for Economic Cooperation and Development (OECD) announced on July 4, 2023, that it published a number of new, updated, and corrected Test Guidelines (TG), including the following for nanomaterials: TG No. 126: Determination of the Hydrophobicity Index of Nanomaterials through an Affinity Measurement: This new TG describes a method to determine the hydrophobicity index (Hy) of nanomaterials, through an affinity measurement. OECD states that hydrophobicity is defined as...
January 23, 2023
OECD Will Hold Webinar on Test Guideline No. 125: Nanomaterial Particle Size and Size Distribution of Nanomaterials
The Organization for Economic Cooperation and Development (OECD) will hold a webinar on February 7, 2023, on Test Guideline (TG) No. 125: Nanomaterial Particle Size and Size Distribution of Nanomaterials. OECD states that it will present the methods described in TG No. 125 to determine the size and size distributions of nanomaterial particles and fibers spanning from one nanometer (nm) to 1,000 nm. During the webinar, attendees will be able to learn the use and limitation of the...
October 28, 2022
NanoHarmony and NANOMET Publish Status Report on Development or Revisions to OECD Test Guidelines and Guidance Documents Applicable to Nanomaterials
NanoHarmony and NANOMET have published a status report summarizing the current status of projects aiming to develop or adapt Organization for Economic Cooperation and Development (OECD) Test Guidelines (TG) and Guidance Documents (GD) for nanomaterials, as well as the outlook for each project as of July 2022. The status report is intended to be a living document that will be updated regularly. A large part of the status report comprises activities in European Union (EU) projects like...
July 8, 2022
OECD Publishes New Test Guidelines for Nanomaterials
On June 30, 2022, the Organization for Economic Cooperation and Development (OECD) published six new Test Guidelines (TG) and ten updated or corrected TGs. The new TGs include the first two harmonized methods for measuring certain nanomaterial-specific physical-chemical properties. According to OECD, these harmonized methods were developed to respond to regulatory needs in member and adhering countries, specifically for manufactured nanomaterials. The development of these TGs was...
May 5, 2022
Registration Opens for NanoHarmony and NANOMET Workshop on OECD Test Guideline Development
The NanoHarmony and NANOMET projects are holding their first face-to-face joint workshop on the development of Organization for Economic Cooperation and Development (OECD) test guidelines (TG) for nanomaterials back-to-back with the OECD Working Party on Manufactured Nanomaterials (WPMN) at the OECD Conference Center in Paris on June 29-30, 2022. NanoHarmony aims to facilitate and improve the development process of TGs from the perspective of the developers, users, and...
July 9, 2021
NanoHarmony Survey Asks Stakeholders about Their Experiences with OECD Test Guidelines and Guidance Documents
NanoHarmony aims to support the development of Organization for Economic Cooperation and Development (OECD) test guidelines (TG) and guidance documents (GD) for eight endpoints where nanomaterial-adapted test methods have been identified as a regulatory priority. NanoHarmony states that it is looking to create guidance for the development of other TGs and GDs in the future that will create a more efficient pathway to develop these. To help learn best practice in this area, the NanoHarmony...