BS ISO 20998-1:2006

Действует

Measurement and characterization of particles by acoustic methods. Concepts and procedures in ultrasonic attenuation spectroscopy — 30 стр.

ICS

19.120 Particle. Including test sieves and porosimetry / Ситовый анализ. Просеивание. Включая контрольные сита и измерение пористости