They include measures to prevent or minimise exposure such as water-assisted suppression to prevent dust from becoming airborne in the case of respirable crystalline silica.
Áirítear orthu sin bearta chun an nochtadh a chosc nó a íoslaghdú amhail sochtadh le cúnamh ó uisce chun deannach a chosc ó dhul san aer i gcás deannach silice criostalta inanálaithe.