What is the purpose of the blank procedure listed in Ultra Low Range Chlorine methods 10014 and 8370 and how often should they be performed?

Dokument-ID

Dokument-ID TE7062

Veröffentlichungsdatum

Veröffentlichungsdatum 27.05.2017
Frage
What is the purpose of the blank procedure listed in Ultra Low Range Chlorine methods 10014 and 8370 and how often should they be performed?
Zusammenfassung
Blank procedure in Ultra Low Range Chlorine methods 10014 and 8370.
 
Antwort
In general, the sample is used to zero the instrument when performing Ultra Low Range Chlorine methods 10014 and 8370.

There is an extra procedure to determine the reagent blank which can be subtracted from chlorine measurements to increase accuracy.

For combined lot numbers of indicator and buffer reagent solutions, it is recommended to perform a new reagent blank value at least once per day.

 

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