Chapter 4.2 – Use of portable tanks and multiple-element gas containers (MEGCs)
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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.294(87) – Adoption of Amendments to the International Maritime Dangerous Goods (IMDG) Code – (Adopted on 21 May 2010) - Annex – Amendments to the International Maritime Dangerous Goods (IMDG) Code - Part 4 – Packing and Tank Provisions - Chapter 4.2 – Use of portable tanks and multiple-element gas containers (MEGCs)

Chapter 4.2 – Use of portable tanks and multiple-element gas containers (MEGCs)

Parent topic: Part 4 – Packing and Tank Provisions

4.2.0 Transitional provisions

  4.2.0.3 A new paragraph "4.2.0.3" is added with the following:

  • “4.2.0.3 Portable tanks and MEGCs manufactured before 1 January 2012, that conform to the marking provisions of 6.7.2.20.1, 6.7.3.16.1, 6.7.4.15.1 or 6.7.5.13.1 of the IMDG Code in force on 1 January 2010 (amendment 34-08), as relevant, may continue to be used if they comply with all other relevant provisions of the current edition of the Code including, when applicable, the requirement of 6.7.2.20.1 (g) for marking the symbol "S" on the plate when the shell or the compartment is divided by surge plates into sections of not more than 7,500 litres capacity. When the shell, or the compartment, was already divided by surge plates into sections of not more than 7,500 litres capacity before 1 January 2012, the capacity of the shell, or respectively of the compartment, need not be supplemented with the symbol "S" until the next periodic inspection or test according to 6.7.2.19.5 is performed.

    Portable tanks manufactured before 1 January 2014 need not be marked with the portable tank instruction as required in 6.7.2.20.2, 6.7.3.16.2 and 6.7.4.15.2 until the next periodic inspection and test.".

4.2.5 Portable tank instructions and special provisions

4.2.5.2 Portable tank instructions

  4.2.5.2.6 In the table for portable tank instructions T1-T22, add a new footnote "b" in the heading of the last column after "Bottom-opening provisions". The footnote shall read as follows:

  • “b When this column indicates "not allowed", bottom openings are not permitted when the substance to be transported is a liquid (see 6.7.2.6.1). When the substance to be transported is a solid at all temperatures encountered under normal conditions of transport, bottom openings conforming to the provisions of 6.7.2.6.2 are authorized.".

4.2.5.3 Portable tank special provisions

  4.2.5.3 Add the following new special provisions accordingly:

  • "TP36 Fusible elements in the vapour space may be used on portable tanks.

  • TP37 Portable tank provision T14 may continue to be applied until 31 December 2016 except:

    • .1 for UN 1810, 2474 and 2668, T7 may be applied;

    • .2 for UN 2486, T8 may be applied; and

    • .3 for UN 1838, T10 may be applied.".

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