This standard was last reviewed and confirmed in 2023. Therefore this version remains current.
It is not always possible to accurately describe the relationship between a set of calibration points with a rectilinear
curve, even by decreasing the working range. Instead of the linear regression analysis, a least-squares fit to a
second-order polynomial is applied (see test for linearity in 4.1.3 of ISO 8466-1:1990). Using this fit, it is possible
to calculate not only the calibration function but also the confidence interval associated with it.
This part of ISO 8466 is intended primarily for use in method development and may not necessarily be applicable to
all routine analyses.
Status: PublishedPublication date: 2001-11
Edition: 2Number of pages: 12
Technical Committee: ISO/TC 147/SC 2 Physical, chemical and biochemical methods
- ICS :
- 13.060.01 Water quality in general
Buy this standard
|std 1 61|
|std 2 61||Paper|
A standard is reviewed every 5 years
Stage: 90.93 (Confirmed)
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.