4 USE OF THE ACTIVE SUBSTANCE OR THE PREPARATION
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Statutory Documents - IMO Publications and Documents - Circulars - Ballast Water Management - BWM.2/Circular.13/Rev.4 – International Convention for the Control and Management of Ships' Ballast Water and Sediments, 2004 – (20 July 2017) - Annex – Revised Methodology for Information Gathering and Conduct of Work of the GESAMP-BWWG. Approved by MEPC 71 on 7 July 2017 - 4 USE OF THE ACTIVE SUBSTANCE OR THE PREPARATION

4 USE OF THE ACTIVE SUBSTANCE OR THE PREPARATION

 4.1 The manner of application

This section describes the manner of application specified in paragraph 4.2.6 and sections 7.1 and 7.3 of Procedure (G9).

4.1.1 The proposal for Basic Approval and Final Approval should include the intended minimum and maximum dosage and maximum allowable discharge concentrations of Active Substances, if applicable.

4.1.2 The proposal should also include the manner of application of the Active Substance or the Preparation by the BWMS to ensure the dosage and concentrations mentioned in paragraph 4.1.1 above.

4.1.3 For Basic Approval submissions, the applicant should prepare all the information on the manner of application after receiving the results on 'Readiness evaluation (refer to paragraph 1.5 of Part 1 of the annex to the 2016 Guidelines (G8))' from the relevant Administration (refer to paragraph 8.1.2.2 of Procedure (G9)). Furthermore, the application dossier should include information on the major components, as identified in paragraph 3.9 of the 2016 Guidelines (G8), in the proposed BWMS. This is understood to mean that the neutralization process to ensure the MADC is not such a component, because it does not directly affect the ability of the BWMS to meet the ballast water performance standard described in regulation D-2 of the Convention.

4.1.4 The description of the manner of application should include a control scheme showing that the Active Substance dose and the MADC can be maintained effectively in the BWMS at all times, in particular at the beginning of discharge. An overdose against stoichiometric demand is needed in this regard.

4.1.5 MADC should be ensured even under extreme conditions of SDLs (such as lower temperature) (refer to paragraph 2.5.1 of Part 2 of the annex to the 2016 Guidelines (G8)). Under extreme low temperatures an additional overdose of the neutralizer is needed.

4.1.6 To verify the reliability and completion of the control scheme of the neutralizer together with Active Substance monitoring, it is recommended that at Basic Approval applicants should perform a simulation of discharge immediately after treatment (when the maximum amount of neutralizer will be needed). The raw monitored data shown below should be provided in the application:

  • .1 Active Substance concentration at, prior to and after the neutralization process;

  • .2 calculated overdose ratio against the stoichiometric demand;

  • .3 dose of the neutralization; and

  • .4 measurement results on Active Substance and on the residual concentration of the neutralizer discharged by using manual methods.

4.1.7 In relation to section 7 of Procedure (G9), the dossier should contain the necessary data addressing the following items:

  • .1 the technical manual or instructions by the Administration, including the product specification, process description, operational instructions, details of the major components and materials used, technical installation specifications, system limitations, and routine maintenance should be provided. The technical manual should also clearly specify the dosage to be added to ballast water and the maximum discharge concentration of the Active Substance therein;

  • .2 recommended methods and precautions concerning handling, use, storage, and transport;

  • .3 procedures to be followed in case of fire, and the nature of reaction products, combustion gases, etc.;

  • .4 measures to be taken in emergency situations;

  • .5 an indication of the possibility of destruction or decontamination following emergency release in the marine environment;

  • .6 procedures for the management of wastes that may be generated during the operation of the BWMS;

  • .7 the manner or procedure of reuse or recycling of Active Substances or Preparations, if applicable;

  • .8 the possibility of neutralization;

  • .9 conditions for controlled discharge;

  • .10 minimum retention timefootnote of treated water on board before discharge (see paragraph 5.2.7 of Procedure (G9));

  • .11 the amount of substance on board ship; and

  • .12 if an Active Substance is used that is convertible to TRO, the dose should be expressed as mg/L as Cl2.

4.1.8 The discharge concentration of Active Substance should be continuously monitored in an appropriate manner at all times. The monitoring point of Active Substance should be positioned prior to the sampling facility, as specified in the 2016 Guidelines (G8). If the sampling facility is placed prior to the monitoring point of the Active Substance, the MADC may not yet have been reached, due to insufficient chemical reaction time.

4.1.9 Appropriate risk management measures (e.g. for neutralization of the Active Substance in case of emergency or if PEC/PNEC at discharge > 1) should be described. These management measures are an integral part of the ballast water management system and should be evaluated in the assessment.

Parent topic: Annex – Revised Methodology for Information Gathering and Conduct of Work of the GESAMP-BWWG. Approved by MEPC 71 on 7 July 2017
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