Specê Secondary Standards For Instrument Verification - Hach 59530-16 Instruction Manual

A user calibration or a user-prepared ozone standard may be required by a
regulatory official or agency. Two options are available on the Pocket Colorimeter
II to meet this requirement.
An ozone standard may be prepared and used to validate the calibration curve
using the Standard Calibration Adjust feature (see
page 2—13). The concentration of the prepared standard must be determined with
an alternate instrument such as a spectrophotometer, colorimeter, amperometric
titration or by an alternate method. The concentration of the ozone standard for
the Low Range procedure must be between 0.10 and 0.20 mg/L ozone and between
0.30 and 0.70 mg/L ozone for the mid-range procedure.
In addition, a user-generated calibration curve can be made and programmed into
the Pocket Colorimeter II. See
Specê Secondary Standards for Instrument Verification
(Mid-range Only)
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
may no longer be valid. Obtain a new set of standards, or use the Pocket Colorimeter II to
assign new values to existing standards.
User-Entered Calibration on page
1—59
Ozone,
Standard Calibration Adjust on
2—15.
continued
√
standards