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 conducting a survey to gather information about companies’ safety and...
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The International Organization for Standardization (ISO) has published standard ISO/TS 21412:2020, “Nanotechnologies — Nano-object-assembled layers for electrochemical bio-sensing applications — Specification of characteristics and measurement methods.” The standard specifies the characteristics to be measured of nano-object-assembled layers on electrodes by means of a solution process and of nano-objects constituting the layers for electrochemical applications such as...
April 16, 2020
ISO Publishes Standard on Characterization of CNT Samples Using Thermogravimetric Analysis
The International Organization for Standardization (ISO) has published standard ISO/TS 11308:2020, “Nanotechnologies — Characterization of carbon nanotube samples using thermogravimetric analysis.” The standard provides guidelines for the characterization of carbon nanotube (CNT)-containing samples by thermogravimetric analysis (TGA), performed in either an inert or oxidizing environment. The standard offers guidance on the purity assessment of the CNT samples through a quantitative...
April 14, 2020
ISO Publishes Standard Specifying Characteristics and Measurement Methods for Air Filter Media Containing Polymeric Nanofibers
The International Organization for Standardization (ISO) has published standard ISO/TS 21237:2020, “Nanotechnologies — Air filter media containing polymeric nanofibres — Specification of characteristics and measurement methods.” According to ISO, in recent years, air filter media containing nanofibers have been commercialized and widely used by different industries due to their high filtration efficiency, along with a low pressure drop created by the slip flow effect. ISO...
March 11, 2020
ISO Standard Specifies Characteristics and Measurement Methods for Carbon Nanotube Suspensions
The International Organization for Standardization (ISO) has published standard ISO/TS 19808:2020, “Nanotechnologies — Carbon nanotube suspensions — Specification of characteristics and measurement methods.” The standard specifies the characteristics to be measured of suspensions containing multi-walled carbon nanotubes (carbon nanotube suspensions). The standard includes the essential and additional characteristics of the carbon nanotube suspension, and the corresponding...
December 11, 2019
ISO Standard Specifies Method for Testing Photocatalytic Activity of Nanoparticles for NADH Oxidation
The International Organization for Standardization (ISO) has published standard ISO 20814:2019, “Nanotechnologies — Testing the photocatalytic activity of nanoparticles for NADH oxidation.” The standard specifies a method for the measurement of the photocatalytic activity (PCA) of nanoparticles (NP), suspended in an aqueous environment in physiologically relevant conditions, by measuring the ultraviolet (UV)-induced nicotine adenine dinucleotide hydrate (NADH) oxidation. ...
October 25, 2019
ISO Standard Specifies Characteristics and Measurement Methods for Layered Clay Nanomaterials
The International Organization for Standardization (ISO) has published standard ISO/TS 21236-1:2019, “Nanotechnologies — Clay nanomaterials — Part 1: Specification of characteristics and measurement methods for layered clay nanomaterials.” The standard specifies characteristics to be measured of layered clay nanomaterials in powder form and chemically modified ones and describes their relevant measurement methods. According to the standard abstract, there are...
The International Organization for Standardization (ISO) has published standard ISO/TS 21361:2019, “Nanotechnologies — Method to quantify air concentrations of carbon black and amorphous silica in the nanoparticle size range in a mixed dust manufacturing environment.” The standard provides guidelines to quantify and identify particles of carbon black and/or amorphous silica in air samples collected in a mixed dust industrial manufacturing environment. The guidelines describe air sample...
March 28, 2019
ISO Publishes Standard on Matrix of Properties and Measurement Techniques for Graphene and Related 2D Materials
The International Organization for Standardization (ISO) has published standard ISO/TR 19733:2019, “Nanotechnologies — Matrix of properties and measurement techniques for graphene and related two-dimensional (2D) materials.” ISO states that since graphene was discovered in 2004, it has become one of the most attractive materials in application research and device industry due to its supreme material properties such as mechanical strength, stiffness and elasticity, high electrical and...
The International Organization for Standardization (ISO) has published standard ISO/TR 21386, “Nanotechnologies — Considerations for the measurement of nano-objects and their aggregates and agglomerates (NOAA) in environmental matrices.” The standard provides some considerations for the collection of environmental samples to be analyzed for manufactured NOAA, considerations to distinguish manufactured NOAA from background levels of naturally occurring nanoscale particles of the same...