Specê Secondary Standards - Hach POCKET COLORIMETER II Instruction Manual

Fluoride, AccuVac® Method,
Specê Secondary Standards
Note:
Due to improvements in the optical system of the Pocket Colorimeter™ II, the tolerance
ranges and values on the Certificate of Analysis of previously purchased Spec √ standards
may no longer be valid. Obtain a new set of standards, or use the Pocket Colorimeter II to
assign new values to existing standards.
Spec√ Secondary Standards are available to quickly check the repeatability of the
Pocket Colorimeter™ II instrument. After initial measurements for the Spec√
standards are collected, the standards can be re-checked as often as desired to
ensure the instrument is working consistently.
The Spec√ standards are intended to verify meter performance and do not ensure
reagent quality, nor do they ensure the accuracy of the test results. Analysis of real
standard solutions using the kit reagents is required to verify the accuracy of the
entire Pocket Colorimeter system. The Spec√ Standards should NEVER be used to
calibrate the instrument. The certificate of analysis lists the expected value and
tolerance for each Spec√ Standard.
Using the Spec√ Standards for Instrument Verification
1. Place the Spec√ STD 1 into the cell holder with the alignment mark facing the
keypad. Tightly cover the cell with the instrument cap.
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