Medical Guide for Ships (IMGS), which is published by the World Health Organization (WHO), Geneva. The Maritime Safety Committee adopted this revised text of the Guide in May 1998, for use in association with Amendment 30-00 of the IMDG Code, and will be further amended as and when, necessary. Table 1 RESCUE Rescuers must be adequately protected from exposure before entering a contaminated area in to avoid injury. When a chemical is unidentified, worst-case assumptions concerning toxicity must be assumed. ARRIVAL AT Upon arrival at the scene, an initial assessment of the situation should be made and the size of the incident should be determined. Rescuers must NOT: Enter a contaminated area without using a pressure-demand self-contained breathing apparatus and wearing full protective clothing; Enter an enclosed space unless they are trained members of a rescue team and follow correct procedures; Walk through any spilled materials; Allow unnecessary contamination of equipment; Attempt to recover shipping papers or manifests from contaminated area unless adequately protected;
indicate the packagings (including large packagings) which may be used for the transport of substances and articles. A code including the letter ‘P’ refers to packing instructions for the use of packagings described in IMDG Chapters – 6.1, 6.2 or 6.3 A code including the letter ‘LP’ refers to packing instructions for the use of large packagings described in IMDG Chapters – 6.6 A code including the letter ‘BP’ refers to the bulk packagings described in IMDG Chapters – 4.3 When a code including the letters ‘P’, ‘LP’ or ‘BP’ is not provided, it means that the substance is not allowed in that type of packaging. When ‘N/R’ is included in this column, it means that the substance or article need not be packaged. Column 9 Special packing provisions: This column contains alphanumeric codes, which refer to the relevant special packing provisions specified in 4.1.4. The special packing provisions indicate the packagings (including large packagings). A special packing provisions including the letters ‘PP’ refers to a special packing provision applicable to the use of a packing instruction bearing the code ‘P’ in 4.1.4.1 A special packing provision including the letter ‘L’ refers to a special packing provision applicable to a packing instruction bearing the code ‘LP’ in 4.1.4.3
fixed fire-extinguishing system, they should be accessible for fire-fighting operations. No repair work should be carried out in a compartment containing goods of class 1. Special care should be exercised in carrying out repairs in any adjacent space. No welding, burning, cutting, or riveting operations involving the use of fire, flame, spark, or arc-producing equipment should be carried out in any space other than machinery spaces and workshops where fire-extinguishing arrangements are available, except in any emergency and, if in port, with prior authorization of the port authority, Special fire precautions for class 2 Effective ventilation should be provided to remove any leakage of gas from within the cargo space or spaces, bearing in mind that some gases are heavier than air and may accumulate in dangerous concentrations in the lower part of the ship. Measures should be to prevent leaking gases from penetrating into any other part of the ship. If there is any reason to suspect leakage of a gas, entry into cargo spaces or other enclosed spaces should not be permitted until the master or responsible officer has taken all safety considerations into account and is satisfied that it is safe to do so. Emergency entry under other circumstances should only be undertaken by trained crew wearing self-contained breathing apparatus, and protective clothing when recommended, and always under the supervision of a responsible officer. Leakage from receptacles containing flammable may give rise to explosive mixtures with air. Such mixtures, if ignited, may result in explosion and fire.
Vertical separation alone does not meet this requirement. Between a package under deck and one on deck, a minimum distance of 24 metres, including a complete compartment, must be maintained longitudinally. For on deck stowage, this segregation means a separation by a distance of at least 24 metres longitudinally. Containment covered by the term “packaged form” Chapter 4.1 describes the different types of packaging for use with goods under the IMDG code. Definitions Effectively closed: liquid-tight closure. Hermetically sealed: closure. Securely closed: so closed that dry contents cannot escape during normal handling; the minimum provisions for any closure. General provisions for the packing of dangerous goods, other than goods of classes 2, 6.2 or 7, in packagings, including Intermediate Bulk Containers (IBCs) and large packagings Dangerous goods should be packed in good quality packagings, including IBCs and large packagings, which should be strong enough to withstand the shocks and loadings normally encountered during transport, including trans-shipment between cargo transport units and/or warehouses as well as any removal from a pallet or overpack for subsequent manual or mechanical handling. Packagings, including IBCs and large packagings, should be constructed and closed so as to prevent any loss of contents when prepared for transport, which might be caused under normal conditions of transport, by
Cargo Measurement Tank quantities are measured by noting the level of the fluid in the tank and then referring to the tank calibration tables and noting down the quantity specified against that level. Thus we take the sounding of a tank – water and fuel on all type of ships and then follow the above practice. Note that prior to referring to the tables the tank level has to be corrected for error due to trim and list. These corrections are generally given in the tank calibration tables. The method though fine by all are turned upside down on a tanker. A tanker loads oil and it is not feasible to take a sounding every now and then – besides it is very messy. On tankers therefore instead of sounding the reverse is measured – that is the vacant level to reach the top of the tank – or the ullage. Thus ullage tables are nothing but the sounding table reversed. Note the following: The maximum sounding of a tank is 24.35m the maximum ullage is also 24.35m. When the sounding is 10m the ullage be 24.35 – 10 = 14.35m Thus when a tank is filling up the sounding increases, whereas the ullage reduces.
Length – 10.5m Cargo – SF 2.7 m3/t Volume – 962 m3 Cargo can load – Volume/ SF Cargo to load – 962/ 2.7 to load – 356 MT Example-103 Given to load No. 1 Lower Hold Bale capacity – 962 m3 Max Height – 11.945m Permissible Load – 9.2 t/ m2 Forward Breadth – 4.5m Breadth – 11.5m Mean Breadth – 8m Length – 10.5m Cargo – 150 MT, SF 2.7 m3/t to load only in after half of the hatch space After breadth – 11.5m Mid Breadth – 8m Mean breadth – 9.75m ½ Length – 5.25m Area of ½ hold as – 51.2 m2