Is it really necessary to use organic-free water for the total organic carbon (TOC) blank vial? I have good quality deionized water that I would prefer to use.

Dokument-ID

Dokument-ID TE394

Veröffentlichungsdatum

Veröffentlichungsdatum 22.10.2019
Frage
Is it really necessary to use organic-free water for the total organic carbon (TOC) blank vial? I have good quality deionized water that I would prefer to use.
Zusammenfassung
Organic-free water for Total Organic Carbon blank
Antwort
Organic-free water must be used for the blank vial in the TOC tests using methods 10128, 10129 and 10173 ; deionized water can have low concentrations of organic matter that will cause the blank to read high and cause low test results. Not using organic-free water is one of the most common problems that people have with this test. Organic-free water should be packaged in glass bottles; water packaged in plastic containers will show contamination and cause low results.

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