NVIC Method

Show NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Operate main and auxiliary machinery and associated control systems.

OICEW-A4.3 Preparation, operation, fault detection and necessary measures to prevent damage for the following machinery items and control systems

Steam boiler and associated auxiliaries and steam systems

Condition Behavior Standard

On a steam vessel of at least 1,000 HP, on a simulator, or in a laboratory,

the candidate tests the boiler water for the following:

  • P-alkalinity;
  • Total alkalinity;
  • Chlorides;
  • Phosphates;
  • Dissolved oxygen; and
  • Total dissolved solids.

Note 1

A candidate who does not perform this task will receive an endorsement that is limited to motor and/or gas-turbine propelled vessels without distilling plants.

On a daily basis, for no less than a 2-week period, the candidate:

  1. Properly lines up the sample cooler system and obtains required samples of water from each boiler;

  2. Correctly performs each required test procedure according to the directions provided by the vessel’s boiler-water treatment vendor; and

  3. Records the results daily.

MMA Method

In order to satisfy NVIC 17-14 Task 4.3.J , MMA students must:

  • Successfully complete MMA Assessment OICEW-5-2D Test and treat boiler water