ISO 19996:2024
Charge conditioning of aerosol particles for particle characterization and the generation of calibration and test aerosols
This document specifies requirements and provides guidance for the use of charge conditioners for aerosol particles, especially for particle characterization and for the generation of calibration and test aerosols.This document provides a methodology to specify the performance of charge conditioners and for adequate quality control, with respect to their application in:— particle size and concentration measurement with differential mobility analysing systems (DMAS);—particle size classification with differential electrical mobility classifiers (DEMC). For these applications, this document covers particle charge conditioning for particle sizes ranging from approximately 1 nm to 1 µm and for particle number concentrations at the inlet of the charge conditioner up to approximately 107 cm-3.This document does not address specific charge conditioner designs or other applications besides those specified in Clause 1.Radiation safety for charge conditioners with radioactive sources or x-ray tubes is not covered by this document.
This document specifies requirements and provides guidance for the use of charge conditioners for aerosol particles, especially for particle characterization and for the generation of calibration and test aerosols.
This document provides a methodology to specify the performance of charge conditioners and for adequate quality control, with respect to their application in:
— particle size and concentration measurement with differential mobility analysing systems (DMAS);
—particle size classification with differential electrical mobility classifiers (DEMC).
For these applications, this document covers particle charge conditioning for particle sizes ranging from approximately 1 nm to 1 µm and for particle number concentrations at the inlet of the charge conditioner up to approximately 107 cm-3.
This document does not address specific charge conditioner designs or other applications besides those specified in Clause 1.
Radiation safety for charge conditioners with radioactive sources or x-ray tubes is not covered by this document.
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ