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TU4000E Water Quality Tester: US EPA 180.1 Compliant Precision for Professional Water Analysis

Feb 02, 2026

Water quality testing—whether domestic tap water as safe to drink, compliance with local municipal wastewater treatment facility requirements, industrial effluent analyses, or environmental supervision—demands, first and foremost, reliable measurements and regulatory compliance as core components in all areas of testing. Professional analytical instruments must produce high-quality, repeatable measurement results that are in accordance with applicable internationally recognized international standards (ISO/IEC, etc.), provide traceable data management, and will be easy to integrate into daily laboratory and on-site working practices.

The TU4000E Water Quality Tester has been designed to provide all of the above for a professional level analytical instrument certified to US EPA 180.1, providing high accuracy (±6%), highly repeatable (RSD ≤0.5%), user friendly touch screen, 1,000 data sets, features built in to support Good Laboratory Practices, and is fully integrated with printers, PC's, and scanners. The TU4000E is used by environmental monitoring stations, water treatment plants, labs performing industrial quality control, and on-site teams to generate regulatory-valid and repeatable results, and optimize testing efficiencies, making it an essential tool for all professional water testing applications that require compliance, accuracy, and simplified workflows.

US EPA 180.1 Compliance: The Gold Standard for Regulatory Validity in Water Testing Adhering to established international standards is a necessity for determining official regulatory validity of water quality testing results when used for environmental auditing and/or safe drinking water certification. The TU4000E complies with the entire catalogue of relevant US EPA 180.1—the authoritative testing standard for turbidity, and for physical-chemical tests involving water, that is considered the default measure of accuracy and methodology for water quality testing worldwide. Compliance is more than just an official recognition; it confirms that any and every valid testing result produced by a TU4000E will meet all applicable US EPA testing regulations.

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