The International Organization for Standardization (ISO) recently published ISO/TR 23463:2022, “Nanotechnologies — Characterization of carbon nanotube and carbon nanofibre aerosols to be used in inhalation toxicity tests.” The standard reviews characterization of carbon nanotube (CNT) and carbon nanofiber (CNF) aerosols for inhalation exposure studies. According to the standard, the framework for material characterization
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ISO Publishes Standard for Determining the Mean Size of Nano-Objects in Liquid Dispersions by SMLS
The International Organization for Standardization (ISO) recently published ISO/TS 21357:2022, “Nanotechnologies — Evaluation of the mean size of nano-objects in liquid dispersions by static multiple light scattering (SMLS).” ISO states that the standard provides guidance and requirements for the determination of the mean (spherical) equivalent diameter of nano-objects (i.e., particles, droplets,…
ISO TC 229 Begins Survey on Advanced and Emergent Materials
The American National Standards Institute (ANSI), which administers the U.S. Technical Advisory Group for the International Organization for Standardization (ISO) Technical Committee (TC) 229 on Nanotechnologies, announced a survey seeking feedback on the use of terms related to advanced materials as part of its newly launched study group, Advanced and Emerging Materials. According to ANSI,…
ISO Publishes Standard on Evaluating the Antimicrobial Performance of Textiles Containing Manufactured Nanomaterials
The International Organization for Standardization (ISO) recently published ISO/TS 23650:2021, “Nanotechnologies — Evaluation of the antimicrobial performance of textiles containing manufactured nanomaterials.” ISO states that the standard specifies the antimicrobial performance assessment method for textiles containing manufactured (metals/metal oxides) nanomaterials. The textiles in the standard include fabric, yarn, and fiber in which manufactured…
ISO Publishes Two New Standards for Nanomaterials
The International Organization for Standardization (ISO) recently published two standards for nanomaterials. ISO/TS 21633:2021, “Label-free impedance technology to assess the toxicity of nanomaterials in vitro,” describes a methodology of a label-free and real-time detection for non-invasive monitoring of cell-based assays to assess toxicity of nanomaterials to eukaryotic and prokaryotic cells. ISO/TS 23034:2021, “…
ISO Publishes Standard Evaluating Methods for Assessing the Release of Nanomaterials from Commercial, Nanomaterial-Containing Polymer Composites
The International Organization for Standardization (ISO) has published ISO/TR 22293:2021, “Evaluation of methods for assessing the release of nanomaterials from commercial, nanomaterial-containing polymer composites.” ISO states that an understanding of what is released from products containing manufactured nanomaterials “is critical to planning and managing safe development and use of those products.” The document…
ISO Publishes Nanotechnologies Standard for 3D Image Reconstruction of Rod-Supported Nano-Objects Using Transmission Electron Microscopy
The International Organization for Standardization (ISO) has published standard ISO/TS 22292:2021, “Nanotechnologies — 3D image reconstruction of rod-supported nano-objects using transmission electron microscopy.” ISO states that the standard provides guidance for sample preparation, data acquisition by transmission electron microscopy (TEM), data processing, and three-dimensional (3D) image reconstruction to measure size and shape parameters…
ISO Updates Series of Standards for Nanotechnology
The International Organization for Standardization (ISO) published a news item on April 1, 2021, entitled “The Science of Tiny Little Things.” According to the item, ISO has recently made some revisions and updates to its comprehensive 13-part series of International Standards for nanotechnology. Updated standards include ISO/TS 80004-3, Nanotechnologies – Vocabulary –…
ISO Publishes Standards Regarding Measurements of Nanoparticle Size and Shape Distribution and Polymeric Nanocomposite Films for Food Packaging with Barrier Properties
The International Organization for Standardization (ISO) has published two nanotechnology standards:
- ISO 21363:2020, “Nanotechnologies — Measurements of particle size and shape distributions by transmission electron microscopy”: The standard specifies how to capture, measure, and analyze transmission electron microscopy images to obtain particle size and shape distributions in the nanoscale. According to ISO, the
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NIOSH Publishes Program Performance One-Pager for Nanotechnology Research Center
On June 25, 2020, the National Institute for Occupational Safety and Health (NIOSH) published a Nanotechnology Research Center (NTRC) Program Performance One-Pager (PPOP). NTRC conducts research to understand the potential effects on human health of exposure to engineered nanomaterials (ENM) and develops methods to control or eliminate exposures. According to the PPOP, NTRC’s accomplishments include…