Workplace exposure - Detection and characterization of airborne NOAA using electron microscopy - Rules for sampling and analysis

This document provides rules for workplace sampling and the sample analysis for the detection and characterization of airborne NOAA using electron microscopy and includes: 1) the choice of appropriate samplers and their use for the detection and characterization (e.g. classification of structures and morphology) of airborne NOAA using electron microscopic methods (SEM and (S)TEM). 2) counting rules and criteria for the determination and characterisation (e.g. classification of structures, chemical composition and morphology) of airborne NOAA using electron microscopic methods (SEM and (S)TEM), especially for nanofibers and platelets. This document is based on extensive laboratory tests for airborne NOAA.