BS EN 17199-1. Workplace exposure. Measurement of dustiness of bulk materials that contain or release nano-objects or submicrometer particles. Part 1. Requirements and choice of test methods— 35 стр.
Representation of results of particle size analysis. Calculation of average particle sizes/diameters and moments from particle size distributions— 38 стр.
Water conditioning equipment inside buildings - Mechanical filters - Part 1: Particle rating 80 µm to 150 µm - Requirements for performances, safety and testing