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Version Date User Field ID Field Difference
1 195 Title of document
-Nanotechnologies-- Quantification of airborne nanoscale carbon black and amorphous silica in a manufacturing environment +Nanotechnologies -- Method to quantify air concentrations of carbon black and amorphous silica in the nanoparticle size range in a mixed dust manufacturing environment
      196 Scope/description
-This technical specification will provide guidelines to quantify and identify nanoscale particles of carbon black and amorphous silica in air samples collected in an industrial environment. +This document provides guidelines to quantify and identify air concentration (number of particles/cm3) of particles of carbon black and/or amorphous silica by size in air samples collected in a mixed dust industrial manufacturing environment.The method is defined for air samples collected with an electrical low pressure cascade impactor (ELPCI). on a 25 mm polycarbonate substrate. The method is suitable for sampling in manufacturing environments where there are a variety of particle types contributing to the overall atmosphere. This method is applicable only to environments with chemically and physically distinct particles contributing to aerosols or when confounders can be controlled (e.g. diesel sources). Other sampling methods can also be suitable, though this document is limited to describing methods associated with the electrical low pressure cascade impactor.Samples collected with the electrical low pressure cascade impactor are analyzed via TEM and EDS to for particle morphology and elemental composition, respectively, to permit identification of particles by type. This information is then used, in conjunction with particle concentration by size range, as determined by the electrical low pressure cascade impactor, to determine concentration of the materials of interest by size.
      197 Keywords
-carbon black; amorphous silica, industrial, collection, characterization +carbon black; amorphous silica, industrial, collection, characterization, TEM
      198 Publication year
- +2019
      201 Primary category that this applies to
- +General Industry/Manufacturing
      210 Additional comments
-This project is currently under development by ISO/TC 229 JWG 2. Parties interested in this work should contact their respective national standards body for more information. +
      213 URL Link
- +https://webstore.ansi.org/Standards/ISO/ISOTS213612019
      214 Anticipated publication year
-2020 +
      215 Select Document Category
-Document Awaiting to be Published +Published Document
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