NEM Chapter 530, Potable Water Systems Flashcards
The ____ has proven to be the most effective method in combating and preventing scale build up in CG evaporators
Chemical treatment of feedwater
CG cutters equipped with evaporator feedwater treatment equipment shall use this equipment ___
To the fullest extent
Two authorized feedwater treatment chemicals
HAGEVAP PD-8
AMEROYAL
Product line managers may request a controlled program of evaluation for feedwater treatment chemicals under ___
Testing of Commercial Products Section in Chapter 041 of the NEM
In the event that ___ cleaning of the evaporator is unsatisfactory, mechanical methods may be used
Chemical
___ shall be used as the chemical cleaning agent for CG evaporators
Sulfamic acid
___ is not an authorized method for descaling evaporators
Chill shocking
Except for ___, high purity water quality shall be met in accordance with NEM and equipment manufacturers’ requirements
Emergency operations
____ which operate RO desalination do not meet the water quality requirements for Diesel Engine Makeup and Auxiliary Boiler Makeup Water without addition treatment
Legacy Assets
Cutters which use ROs to produce P/W require ___ to reduce contaminates to a satisfactory level
High purity deionization
The RO installed on the ____ can produce high purity P/W which is required for Diesel Engine Makeup Water and Main Propulsion Turbine Wash Water only if the P/W is ___
WMSL
Reprocessed by the RO unit to further reduce impurity levels
In order to produce ultra high purity P/W for Helicopter Turbine Wash on the flight deck, an ___ shall be employed
Ultra high purity deionized water treatment system
The ultra high purity deionized water treatment system further ___
Processes the effluent from the high purity water system using a Mixed Bed Deionizer to remove impurities
Water quality limits on the deionization system shall meet ___
HH-65C engine manufacturers’ requirements for deionized water
The use of ___ is prohibited on flanged or threaded connections on evaporators, all elements of the evaporator salt water feed system, and all elements of thee P/W system
White lead
