Page 75 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

The free residual HALOGEN and pH measured by the
HALOGEN/pH analyzer must be accurate to within 0.2 mg/L
(ppm) of the free residual HALOGEN and 0.2 of the pH as
measured by the manual test.

Calibration is required at the beginning of bunkering or production
and each time bunkering or production is restarted.

5.2.1.2.5 Construction (06)
HALOGEN and pH analyzer-chart recorders used on bunker water
systems must be constructed and installed according to the
manufacturer’s guidelines.

5.2.1.2.6 Data Logger
Electronic data loggers with CERTIFIED DATA SECURITY
FEATURES may be used in lieu of chart recorders.

If electronic data loggers are used, written documentation from the
data logger manufacturer, such as a letter or instruction manual,
must be provided to verify that the features are secure.

5.2.1.2.7 Halogen Injection (08)
Water samples for HALOGEN and pH testing must be obtained
from a sample cock and/or a HALOGEN analyzer probe located
on the bunker or production water line at least 3 meters (10 feet)
after the HALOGEN injection point and before the storage tank.

A static mixer may be used to reduce the distance between the
HALOGEN injection point and the sample cock or HALOGEN
analyzer sample point. If used, the mixer must be installed per the
manufacturer’s recommendations. A copy of all manufacturers’
literature for installation, operation, and maintenance must be
maintained.

5.2.1.2.8 Tank Sample
In the event of EQUIPMENT failure, bunker or production
water HALOGEN samples may also be taken from previously
empty POTABLE WATER TANKS.

5.0 Potable Water; 46