Chemical Tanker Operations

Rajeev Jassal
Rajeev Jassal Master

Foam is made up of three things

  • Foam concentrate
  • Water
  • Air

Foam concentrate is also defined by proprtioning ratio the foam is required to be used. So when we have 6% Foam concentrate, it is most effective when 6 parts of foam concentrate is mixed with 94 parts of water to form foam solution

Rajeev Jassal
Rajeev Jassal Master

This is very interesting and unusual situation. For the sake of clarity, let us see what we are talking about here.

Normally, the line for annex 1 and annex 2 overboard discharge looks something like this. This is not the exact line up but just a basic line up

Rajeev Jassal
Rajeev Jassal Master

SOLAS gives the regulations and not detailed procedures. The requirement for not testing GMDSS equipment during cargo operations is given in the ISGOTT. As per ISGOTT

ISGOTT 2.7

During medium and high frequency radio transmission (300 kHz — 30 MHz), significant ene