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NASA has selected ITT’s OI Analytical-branded total organic carbon analyser (TOCA) and WTW-branded Vario conductivity temperature meter for inclusion on the space shuttle Discovery’s final flight.

The instruments will be used by the crew of the International Space Station (ISS) to measure conductivity and analyse water quality.

ITT formed ITT Analytics in March 2010, following the company’s acquisition of Nova Analytics, to provide customers with analytical instrumentation for measurement and analysis.

The OI Analytical TOCA from ITT Analytics was developed in collaboration with NASA specifically for use on the ISS.

It will be used onboard to analyse the organic carbon level in water that has been processed and purified, ensuring it is safe for human consumption in line with SSP 50260, International Space Station Medical Operations Requirements Document.

Possessing innovative electrochemical-oxidation technology, the TOCA maintains long-term calibration stability, providing accurate and dependable data with minimal maintenance.

The instrument’s colour touch-screen display with Windows CE-based user interface simplifies instrument set-up and access to data, trending and diagnostic screens.

The ISS crew will also use the WTW Vario conductivity temperature meter from ITT Analytics to measure conductivity of water within the ISS Oxygen Generation Assembly (OGA) to ensure the continued operation of the station’s oxygen generation system.

The instrument’s robust and ergonomic design makes it suitable for this demanding application, while its innovative touch screen enables all functions to be performed single-handedly.

In addition to offering a high level of precision when measuring conductivity, temperature, specific resistance, salinity or TDS (total dissolved solids) of a solution, the meter’s pure water conductivity cell with flow-through vessel enables users to make rapid and easily controlled measurements.

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