Ion concentration testing apparatus

US4180009A · kind A · utility

Assignee

• Tintometer GmbH · DE

Inventors

• Cay-Peter Voss · Hagen, DE
• Manfred Nowak · Solingen, DE

Key dates

• Filing date: Nov 17, 1977
• Grant date: Dec 25, 1979
• Expiry date: Nov 17, 1997

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N31/22
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for determining the ion concentration of certain substances, or mixtures of substances, in swimming pool water by admixture of color forming chemical reagents comprising measuring containers and at least one reference container combined to form a row of containers which have a common side wall. An indicating screen with a plurality of fixed, differently tinted indicating windows associated with the individual containers and distributed over the height of the containers is arranged in front of the common side wall, and the indicating windows associated with the reference container or containers are provided with a standard coloration relating to that formed by the color forming reagents.