4 Report
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.729 – Design Guidelines and Operational Recommendations for Ventilation Systems in Ro-Ro Cargo Spaces – (Adopted on 4 July 1996) - Part 1 - Design Guidelines and Operational Recommendations for Ventilation Systems in Ro-Ro Cargo Spaces - Appendix 2 - Ventilation of ro-ro cargo spaces - Air flow testing procedures - 4 Report

4 Report

 A written report should be provided containing the following information:

Ship's data Including, shipname, register, number, length, breadth, draught, GT, owner, shipyard, name of contractor carrying out the test.
Weather conditions Wind speed and direction in general and in relation to the longitudinal of the ship during measurements.
Vehicle deck measurements Deck length, breadth , height, and volume.
Ventilation A plan of the deck indicating the location of supply and exhaust fans, together with information on grille surface area, design capacity and actual capacity of each unit. The use of additional air mixing equipment (e.g. dirivent) should also be noted. An indication of the status of all other openings to the deck during sampling should also be provided.
Activity Details of loading and unloading should be included. These should comprise the time taken for each loading/unloading operation, the number of personnel working, the number and type of vehicles present.
Measurements Time and date of the measurements. Instrumentation Calibration Measurement procedure. Sample locations Details of sample analysis.
Results Measurement results Calculation of occupational exposure
Conclusions/Recommendations  

 In addition to the statement of results the report should contain a plan of the ro-ro cargo space with supply air and exhaust air ducts shown. Where appropriate the measurement points, type and number of vehicles, etc., should be indicated. Notes should be made regarding circumstances that affect the ventilation systems and/or flow patterns on the deck.

When conducting a visual study with visible smoke, a detailed description of discharge and dissipation of the smoke as well as lapse of time should be given.

Parent topic: Appendix 2 - Ventilation of ro-ro cargo spaces - Air flow testing procedures
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.