00.00 May 10, 2026
ISO
ISO/TC 24/SC 4
International Standard
This document describes how to measure a light extinction spectrum at several fixed wavelengths and how to transform the spectrum into information on particle size and concentration. The applicable size range is 0,1 to 10 μm at a concentration of 0,01% to 1% by volume.
PROJECT
ISO/PWI 26775
00.00
Proposal for new project received
May 10, 2026