Isco-STIP-toc functions as a high-temperature TOC analyser without ultra or fine filtration.  Applications range from solids containing municipal wastewater to industrial wastewater with dissolved salts to river water and cooling water.

Isco-STIP-toc Analyser Features:

• Temperature selectable from 600oC to 900oC
• True continuous operation
• Response time: 3 to 15 minutes
• Measuring range: 2 - 10,000 mgTOC/litre (detector dependent)
• Salt trap
• Catalyst outside furnace
• Rotating slit filter
• Digital and analog output signals for external alarms and controls
• Sample preparation with self-cleaning coarse filter

A large sample stream is taken in via an automatically self-cleaning coarse filter in the sample bypass. In the stripping cell, inorganic carbon is removed through acidification and sparging.

In the rotating slit filter, a substream for analysis is split off directly before the furnace. In the furnace the analysis stream is thermally and catalytically oxidized. After the evolved gas mixture is dried and neutralised, it is measured as CO2 in the IR detector, and reported as TOC. The system automatically calibrates itself daily with two TOC standards (two point calibration).