Chapter 6.4
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.262(84) – Adoption of Amendments to the International Maritime Dangerous Goods (IMDG) Code – (Adopted on 16 May 2008) - Annex – Amendments to the International Maritime Dangerous Goods (IMDG) Code - Part 6 - Chapter 6.4

Chapter 6.4

  6.4.5.4.1.2 Replace “conform to the standards prescribed in chapter 6.1, or other provisions at least equivalent to those standards” with “satisfy the provisions for packing group I or II in chapter 6.1 of this Code”

  6.4.5.4.2.2 Replace “conform to the standards prescribed in chapter 6.7, or other provisions at least equivalent to those standards” with “satisfy the provisions of chapter 6.7 of this Code”

  6.4.5.4.3 Replace “that they conform to standards at least equivalent to those prescribed in 6.4.5.4.2.” with “that:

  • .1 They satisfy the provisions of 6.4.5.1;

  • .2 They are designed to satisfy the provisions prescribed in regional or national regulations for the transport of dangerous goods and are capable of withstanding a test pressure of 265 kPa; and

  • .3 They are designed so that any additional shielding which is provided shall be capable of withstanding the static and dynamic stresses resulting from handling and routine conditions of transport and of preventing an increase of more than 20% in the maximum radiation level at any external surface of the tanks.”

  6.4.5.4.4 Insert “of a permanent enclosed character” after “Freight containers”

  6.4.5.4.5.2 Replace “conform to the standards and test prescribed in chapter 6.5, for packing group I or II, and if they were subjected to the tests prescribed” with “satisfy the provisions of chapter 6.5 of this Code for packing group I or II, and if they were subjected to the tests prescribed in that chapter”

  6.4.8.8 Justify the text to the left after .2(i) and .2(ii)

  6.4.11.2 Replace “of this paragraph” with “of 2.7.2.3.5”

  6.4.11.2.1 to 6.4.11.2.4 Delete text and table

  6.4.11.11 Replace ““N” is subcritical” with ““N” packages shall be subcritical”

  6.4.11.12 Replace ““N” is subcritical” with ““N” packages shall be subcritical”

  6.4.11.13 Insert “6.4.11.13 The criticality safety index (CSI) for packages containing fissile material shall be obtained by dividing the number 50 by the smaller of the two values of N derived in 6.4.11.11 and 6.4.11.12 (i.e. CSI = 50/N). The value of the criticality safety index may be zero, provided that an unlimited number of packages is subcritical (i.e. N is effectively equal to infinity in both cases).”

  6.4.23.14(o) Insert “6.4.8.4,” before “6.4.8.5”


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