Chapter 4.1
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.205(81) - Adoption of Amendments to the International Maritime Dangerous Goods (IMDG) Code - (Adopted on 18 May 2006) - Annex - Amendments to the International Maritime Dangerous Goods (IMDG) Code (Resolution MSC.122(75)) - Part 4 - Chapter 4.1

Chapter 4.1

 Renumber all references to renumbered paragraphs of chapters 6.1, 6.5 and 6.6, as appropriate.

  4.1.1 In the Note, insert "only" after "6.2 and 7" and replace "P621" with "P620, P621, P650".

  4.1.1.5 Insert the following new second sentence:

 "Inner packagings containing liquids shall be packaged with their closures upward and placed within outer packagings consistent with the orientation markings prescribed in 5.2.1.7 of this Code."

  4.1.1.5.1 Insert a new paragraph 4.1.1.5.1 with the same text as in existing 6.1.5.1.6 with the insertion of the words "or a large packaging" after "combination packaging" and the words "or large packaging" after "outer packaging" in the first sentence. Renumber the current 4.1.1.5.1 and 4.1.1.5.2 as 4.1.1.5.2 and 4.1.1.5.3 respectively.

  4.1.1.7.2 Replace "shall" with "should" at the end of the paragraph.

  4.1.1.8 Amend to read as follows:

  "4.1.1.8 Where pressure may develop in a package by the emission of gas from the contents (as a result of temperature increase or other causes), the packaging or IBC may be fitted with a vent provided that the gas emitted will not cause danger on account of its toxicity, its flammability, the quantity released, etc.

 A venting device shall be fitted if dangerous overpressure may develop due to normal decomposition of substances. The vent shall be so designed that, when the packaging or IBC is in the attitude in which it is intended to be transported, leakages of liquid and the penetration of foreign substances are prevented under normal conditions of transport.

  4.1.1.8.1 Liquids may only be filled into inner packagings which have an appropriate resistance to internal pressure that may be developed under normal conditions of transport.".

  4.1.1.12 In the first sentence, replace ", including IBCs," with "as specified in chapter 6.1" and delete ", or 6.5.4.7 for the various types of IBCs".

 Delete .3.

 In the last paragraph, delete “, or IBC," in the first sentence and "or IBC" in the second sentence.

  4.1.1.17.5 Replace "6.1.5.8" with "6.1.5.7".

  4.1.1.17.6 Add a new paragraph to read as follows:

  "4.1.1.17.6 Appropriate measures shall be taken to ensure there is no dangerous build up of pressure.".

  4.1.2.1 Replace "61°C" with "60°C".

  4.1.2.2 Replace the first sentence with the following paragraph:

 "Every metal, rigid plastics and composite IBC, shall be inspected and tested, as relevant, in accordance with 6.5.1.6.4 or 6.5.1.6.5:

  • (a) before it is put into service;

  • (b) thereafter at intervals not exceeding two and a half and five years, as appropriate;

  • (c) after the repair or remanufacture, before it is re-used for transport."

 Amend the second sentence to read "An IBC shall not be filled and offered for transport after the date of expiry of the last periodic test or inspection.".

  4.1.3.6 Amend to read as follows:

  "4.1.3.6 Pressure receptacles for liquids and solids

  4.1.3.6.1 Unless otherwise indicated in this Code, pressure receptacles conforming to:

  • a) the applicable requirements of chapter 6.2; or

  • b) the National or International standards on the design, construction, testing, manufacturing and inspection, as applied by the country in which the pressure receptacles are manufactured, provided that the provisions of 4.1.3.6 and 6.2.3.3 are met,

 are authorized for the transport of any liquid or solid substance other than explosives, thermally unstable substances, organic peroxides, self-reactive substances, substances where significant pressure may develop by evolution of chemical reaction and radioactive material (unless permitted in 4.1.9).

 This sub-section is not applicable to the substances mentioned in 4.1.4.1, packing instruction P200, table 3.

  4.1.3.6.2 Every design type of pressure receptacle shall be approved by the competent authority of the country of manufacture or as indicated in chapter 6.2.

  4.1.3.6.3 Unless otherwise indicated, pressure receptacles having a minimum test pressure of 0.6 MPa shall be used.

  4.1.3.6.4 Unless otherwise indicated, pressures receptacles may be provided with an emergency pressure relief device designed to avoid bursting in case of overfill or fire accidents.

 Pressure receptacle valves shall be designed and constructed in such a way that they are inherently able to withstand damage without release of the contents or shall be protected from damage which could cause inadvertent release of the contents of the pressure receptacle, by one of the methods as given in 4.1.6.1.8 (.1) to (.5).

  4.1.3.6.5 The level of filling shall not exceed 95% of the capacity of the pressure receptacle at 50°C. Sufficient ullage (outage) shall be left to ensure that the pressure receptacle will not be liquid full at a temperature of 55°C.

  4.1.3.6.6 Unless otherwise indicated pressure receptacles shall be subjected to a periodic inspection and test every 5 years. The periodic inspection shall include an external examination, an internal examination or alternative method as approved by the competent authority, a pressure test or equivalent effective non-destructive testing with the agreement of the competent authority including an inspection of all accessories (e.g., tightness of valves, emergency relief valves of fusible elements). Pressure receptacles shall not be filled after they become due for periodic inspection and test but may be transported after the expiry of the time limit. Pressure receptacle repairs shall meet the requirements of 4.1.6.1.11.

  4.1.3.6.7 Prior to filling, the filler shall perform an inspection of the pressure receptacle and ensure that the pressure receptacle is authorized for the substances to be transported and that the provisions of this Code have been met. Shut-off valves shall be closed after filling and remain closed during transport. The consignor shall verify that the closures and equipment are not leaking.

  4.1.3.6.8 Refillable pressure receptacles shall not be filled with a substance different from that previously contained unless the necessary operations for change of service have been performed.

  4.1.3.6.9 Marking of pressure receptacles for liquids and solids according to 4.1.3.6 (not conforming to the requirements of chapter 6.2) shall be in accordance with the requirements of the competent authority of the country of manufacturing.".

  4.1.4.1

P001 Insert a new row after "Composite packagings" to read as follows:
  "Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met.".
    Add "or" at the end of special packing provision PP1(a).
    Amend special packing provision PP2, to read as follows:
  "PP2 For UN 3065, wooden barrels with a maximum capacity of 250 litres and which do not meet the provisions of chapter 6.1 may be used.".
P002 Insert a new row after "Composite packagings" to read as follows:
  "Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met.".
  In special packing provision PP37, amend the second sentence to read as follows:
  "All bags of any type shall be transported in closed cargo transport units or be placed in closed rigid overpacks.".
P003 Add the following new special packing provisions PP87 and PP88:
  "PP87 For UN 1950 waste aerosols transported in accordance with special provision 327, the packagings shall have a means of retaining any free liquid that might escape during transport, e.g. absorbent material. The packaging shall be adequately ventilated to prevent the creation of flammable atmosphere and the build-up of pressure.
  PP88 For UN 3473 when fuel cell cartridges are packed with equipment, they shall be packed in inner packagings or placed in the outer packaging with cushioning material so that the cartridges are protected against damage that may be caused by the movement or placement of the equipment and the cartridges within the outer packaging.".
P112(b) Delete "and UN 0223" in special packing provision PP47.
P200 In paragraph (3)(b), in the sentence preceding the first equation, replace "gases for which data are not provided in the table" with "gases and gas mixtures for which relevant data are not available".
  In paragraph (3)(c), in the sentence before the equation, replace "gases for which filling data are not provided in the table" with "gases and gas mixtures for which relevant data are not available".
  In paragraph (4), amend special provisions "k", "l", "n" and "z" as follows:
  Special provision "k": Replace lines 4 to 8 with the following text:
  "Bundles containing UN 1045 Fluorine, compressed, may be constructed with isolation valves on assemblies (groups) of cylinders not exceeding 150 litres total water capacity instead of isolation valves on every cylinder.
  Cylinders and individual cylinders in a bundle shall have a test pressure greater than or equal to 200 bar and a minimum wall thickness of 3.5 mm for aluminium alloy or 2 mm for steel. Individual cylinders not complying with this requirement shall be transported in a rigid outer packaging that will adequately protect the cylinder and its fittings and meeting the packing group I performance level. Pressure drums shall have a minimum wall thickness as specified by the competent authority.".
  Special provision "l": In the last sentence, replace "total quantity" with "maximum net mass"
  Special provision "n": Amend to read as follows:
  "Individual cylinders and assemblies of cylinders within a bundle shall contain not more than 5 kg of UN 1045 Fluorine compressed. Bundles containing UN 1045 Fluorine, compressed, may be divided in assemblies (groups) of cylinders not exceeding 150 litres total water capacity.".
  Special provision "p": Amend "porous mass" to read "porous material".
  Special provision "z": Amend the third paragraph to read as follows:
  "Toxic substances with an LC50 less than or equal to 200 ml/m3 shall not be transported in tubes, pressure drums or MEGCs and shall meet the requirements of special packing provision “k". However, UN 1975 Nitric oxide and dinitrogen tetroxide mixture may be transported in pressure drums.".
  In Tables 1 and 2, delete the entries for the following UN Nos.: 1014, 1015, 1979, 1980, 1981 and 2600.
  In Table 1, in the heading of column 13 and in the footnote, replace "Working pressure" with "Maximum working pressure".
  In Table 2:
  - For UN Nos. 2192 and 2199, add "q" (twice for UN No. 2199) in the column under the heading "Special packing provisions".
  - For UN 2451, delete "300" and "0.75" in the columns for "Test pressure" and "Filling ratio", respectively.
  In Table 3: add a cross in the column "Pressure drums" for UN Nos. 1745, 1746 and 2495.
P400 (1) Amend to read as follows:
  "Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met. They shall be made of steel and shall be subjected to an initial test and periodic tests every 10 years at a pressure of not less than 1MPa (10 bar, gauge pressure). During carriage, the liquid shall be under a layer of inert gas with a gauge pressure of not less than 20 kPa (0.2 bar).".
P401 (1) and P402 (1) Amend to read as follows:
  "Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met. They shall be made of steel and subjected to an initial test and periodic tests every 10 years at a pressure of not less than 0.6MPa (6 bar, gauge pressure). During carriage, the liquid shall be under a layer of inert gas with a gauge pressure of not less than 20 kPa (0.2 bar).".
P403, P404 and P410 Insert a new row after "Composite packagings" to read as follows:
  "Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met.".
P404 In the second row, delete UN numbers "2005, 3052, 3203, 3392, 3394, 3395, 3396, 3397, 3398, 3399 and 3400".
  Delete UN numbers "2005, 3052 and 3203" in special packing provision PP31.
P520 Under “Additional provisions" in "4", insert "(Model No.1, see 5.2.2.2.2)" after "risk label".
P601 and P602 Amend paragraph (1) to read as follows:
  “(1) Combination packagings with a maximum gross mass of 15 kg, consisting of:
    – one or more glass inner packaging(s) with a maximum quantity of 1 litre each and filled to not more than 90% of their capacity; the closure(s) of which shall be physically held in place by any means capable of preventing back-off or loosening by impact or vibration during transport, individually placed in;
    − metal receptacles together with cushioning and absorbent material sufficient to absorb the entire contents of the glass inner packaging(s), further packed in;
    − 1A2, 1B2, 1N2, 1H2, 1D, 1G, 4A, 4B, 4C1, 4C2, 4D, 4F, 4G or 4H2 outer packagings.".
  Amend paragraph (4) to read as follows:
  "(4) Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met. They shall be subjected to an initial test and periodic tests every 10 years at a pressure of not less than 1MPa (10 bar) (gauge pressure). Pressure receptacles may not be equipped with any pressure relief device. Each pressure receptacle containing a toxic by inhalation liquid with an LC50 less than or equal to 200 ml/m3 (ppm) shall be closed with a plug or valve conforming to the following:
  (a) Each plug or valve shall have a taper-threaded connection directly to the pressure receptacle and be capable of withstanding the test pressure of the pressure receptacle without damage or leakage;
  (b) Each valve shall be of the packless type with non-perforated diaphragm, except that, for corrosive materials, a valve may be of the packed type with an assembly made gas-tight by means of a seal cap with gasket joint attached to the valve body or the pressure receptacle to prevent loss of material through or past the packing;
  (c) Each valve outlet shall be sealed by a threaded cap or threaded solid plug and inert gasket material;
  (d) The materials of construction for the pressure receptacle, valves, plugs, outlet caps, luting and gaskets shall be compatible with each other and with the lading.
  Each pressure receptacle with a wall thickness at any point of less than 2.0 mm and each pressure receptacle that does not have fitted valve protection shall be transported in an outer packaging. Pressure receptacles shall not be manifolded or interconnected.".
P650 Amend paragraph (2) to read as follows:
  "(2) The packaging shall consist of at least three components:
   
(a) =

a primary receptacle;

   
(b) =

a secondary packaging; and

   
(c) =

a outer packaging;

    of which either the secondary or the outer packaging shall be rigid."
  In paragraph (4):
  Amend the second sentence to read as follows: "The mark shall be in the form of a square set at an angle of 45° (diamond-shaped) with each side having a length of at least 50 mm, the width of the line shall be at least 2 mm and the letters and numbers shall be at least 6 mm high.".
  Add the following new third sentence: "The proper shipping name "BIOLOGICAL SUBSTANCE, CATEGORY B" in letters at least 6 mm high shall be marked on the outer package adjacent to the diamond-shaped mark.".
  Insert a new paragraph (5) to read as follows and renumber subsequent paragraphs accordingly:
  "(5) At least one surface of the outer packaging shall have a minimum dimension of 100 mm × 100 mm.".
  Amend current paragraph (5) (renumbered (6)) to read as follows:
  "(6) The completed package shall be capable of successfully passing the drop test in 6.3.2.5 as specified in 6.3.2.2 to 6.3.2.4 of this Code at a height of 1.2 m. Following the appropriate drop sequence, there shall be no leakage from the primary receptacle(s) which shall remain protected by absorbent material, when required, in the secondary packaging.".
  In (7) (renumbered (8)), add a new subparagraph (d) to read as follows:
  "(d) If there is any doubt as to whether or not residual liquid may be present in the primary receptacle during transport then a packaging suitable for liquids, including absorbent materials, shall be used.".
  In the last sentence of paragraph (8)(a) (renumbered (9)(a)), insert "the package (the outer packaging or the overpack)" after "packagings and" and before "shall be marked".
  Insert a new paragraph (10) to read as follows and renumber subsequent paragraphs accordingly:
  "(10) When packages are placed in an overpack, the package markings required by this packing instruction shall either be clearly visible or be reproduced on the outside of the overpack.".
  Add a new paragraph (13) to read as follows:
  "(13) Other dangerous goods shall not be packed in the same packaging as class 6.2 infectious substances unless they are necessary for maintaining the viability, stabilizing or preventing degradation or neutralizing the hazards of the infectious substances. A quantity of 30 ml or less of dangerous goods included in Classes 3, 8 or 9 may be packed in each primary receptacle containing infectious substances. When these small quantities of dangerous goods are packed with infectious substances in accordance with this packing instruction no other provisions of the Code need be met.".
P800 Amend paragraph (1) to read as follows:
 
"(1) =

Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met.".

P802 In paragraph (4), delete "Austenitic".
  Amend paragraph (5) to read as follows:
 
"(5) =

Pressure receptacles may be used provided that the general provisions of 4.1.3.6 are met.".

P906 In the second row, amend "3452" to read "3432".

  4.1.4.2 IBC02 Add ",2984" after "2014" in special packing provision B5.

  4.1.4.3 LP02 Add a new special packing provision "L2" to read as follows:

  "L2 For UN 1950 aerosols, the large packaging shall meet the packing group III performance level. Large packagings for waste aerosols transported in accordance with special provision 327 shall have in addition a means of retaining any free liquid that might escape during transport e.g., absorbent material.".

  4.1.6.1.2 Amend "porous mass" to read "porous material" (twice).

  4.1.6.1.8 Delete "for unprotected valves as described in .4," in the last paragraph.

  4.1.9.1.3 Amend to read:

 "A package shall not contain any items other than those that are necessary for the use of the radioactive material. The interaction between these items and the package under the conditions of transport applicable to the design, shall not reduce the safety of the package.".

  4.1.9.2.2 Amend to read: "For LSA material and SCO which is or contains fissile material the applicable provisions of 6.4.11.1, 7.2.9.4 and 7.2.9.5 shall be met.".


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.