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ISO/TS 21357:2022

Nanotechnologies — Evaluation of the mean size of nano-objects in liquid dispersions by static multiple light scattering (SMLS)

Publication date:   Jan 14, 2022

General information

90.93   Standard confirmed   Jul 22, 2025

ISO

ISO/TC 229 Nanotechnologies

Technical Specification

07.120   Nanotechnologies

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Scope

This document provides guidance and requirements for the determination of the mean (spherical) equivalent diameter of nano-objects (i.e. particles, droplets or bubbles) dispersed in liquids using the static multiple light scattering (SMLS) technique. The technique is applicable to a wide range of materials and does not require dilution of concentrated samples.

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PUBLISHED
ISO/TS 21357:2022
90.93 Standard confirmed
Jul 22, 2025