Viewing equipment matching the following properties:
Functioning principle: the radon diffuses into the chamber, covered by felt.The felt absorbs the air-borne radon decay products.The radon activity is determined by measuringair the alfa-activity of 218Po (RaA), collected by the electric field on the
Turbidity is measured according to EN ISO 7027 by nephelometric means (90° scattered light). The infra-red light-source permits measurement of coloured and colour-free samples. The automatic measurement range detection facility (Autorange) enables di
