What wavelength is selected when using the USEPA filter assembly on bench top turbidimeters?

Document ID

Document ID TE3751

Published Date

Published Date 27/05/2017
Question
What wavelength is selected when using the USEPA filter assembly on bench top turbidimeters?
Summary
The wavelength of the USEPA filter assembly for bench top turbidimeters.
Answer
For instruments complying with the United States Environmental Protection Agency (USEPA), there is a filter that limits the wavelength. The filter does not select a specific wavelength, but limits the range to 400-600 nm which is where the detector response peaks.