Does Hach have a general statement that explains how the solids calibration correlates to measured value?

Document ID

Document ID TE752

Version

Version 4.0

Status

Status Published

Published Date

Published Date 09/13/2018
Question
Does Hach have a general statement that explains how the solids calibration correlates to measured value?
Summary
TSS portable solids measurement explanation
Answer
Yes, a single point calibration draws a straight line from the probes zero point to the point of calibration; however the mathematical transformation of the different signals of the different detectors is nonlinear. When a calibration curve consists of 3 points the curve is created by connecting the straight lines. The course may not hit the zero e.g. because the medium itself is colored and absorbs light.

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