Page 84 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

A manual comparison test must be conducted daily to verify
calibration. Calibration must be made whenever the manual test
value is >0.2 MG/L (ppm) higher or lower than the analyzer
reading.

5.5.1.2.2 Calibration (06)
The daily manual comparison test or calibration must be recorded
either on the recorder chart or in a log.

5.5.1.2.3 Accuracy (05)
The free residual HALOGEN measured by the HALOGEN
analyzer must be ±0.2 MG/L (ppm) of the free residual
HALOGEN measured by the manual test.

5.5.1.2.4 Test Kit (06)
The HALOGEN test kit used to calibrate the HALOGEN analyzer
must be accurate to within 0.2 MG/L (ppm) for HALOGEN and
graduated in increments no greater than 0.2 MG/L (ppm) in the
range of free residual HALOGEN normally maintained in the
POTABLE WATER system.

Ensure all reagents used with the test kit are not past their
expiration dates.

Where available, ensure appropriate secondary standards are
onboard for electronic test kits to verify test kit operation.

5.5.2 Halogen Analyzer Charts

5.5.2.1 Chart Design

5.5.2.1.1 Range (06)
HALOGEN analyzer-chart recorder charts must have a range of
0.0 to 5.0 MG/L (ppm) and have a recording period of—and
limited to—24 hours.

5.5.2.1.2 Data Logger (06)
Electronic data loggers with CERTIFIED DATA SECURITY
FEATURES used in lieu of chart recorders must produce records
that conform to the principles of operation and data display
required of the analog charts, including printing the records.

5.5.2.1.3 Increments (06)
Electronic data logging must be in increments of ≤15 minutes.

5.0 Potable Water; 55