Otros

 

Otros

ISO 489:2022 - Plastics — Determination of refractive index
- This document specifies two test methods for determining the refractive index of plastics, namely:—    Method A: a refractometric method for measuring the refractive index of...
ISO 19749:2021 - Nanotechnologies — Measurements of particle size and shape distributions by scanning electron microscopy
01/07/2021 - This document specifies methods of determining nanoparticle size and shape distributions by acquiring and evaluating scanning electron microscope images and by obtaining and reporting accurate...