21.5 Column o – Criteria for special requirements in chapter 15
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Statutory Documents - IMO Publications and Documents - International Codes - IBC Code - International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in BulkAmended by Resolution MEPC.225(64) - Chapter 21 Criteria for assigning carriage requirements for products subject to the IBC Code - 21.5 Column o – Criteria for special requirements in chapter 15

21.5 Column o – Criteria for special requirements in chapter 15

 21.5.1 The assignment of special requirements in column o shall normally follow clear criteria based on the data supplied in the reporting form. Where it is considered appropriate to deviate from such criteria, this shall be clearly documented in such a way that it can easily be retrieved on demand.

21.5.2 The criteria for making reference to the special requirements identified in chapters 15 and 16 are defined below with comments where relevant.

21.5.3 Paragraphs 15.2 to 15.10 and 15.20

21.5.3.1 Paragraphs 15.2 to 15.10 and 15.20 identify specific products by name with special carriage requirements that cannot be easily accommodated in any other way.

21.5.4 Paragraph 15.11 – Acids

21.5.4.1 Paragraph 15.11 applies to all acids unless they:

  • .1 are organic acids – when only paragraphs 15.11.2 to 15.11.4 and paragraphs 15.11.6 to 15.11.8 apply; or

  • .2 do not evolve hydrogen – when paragraph 15.11.5 need not apply.

21.5.5 Paragraph 15.12 – Toxic products

21.5.5.1 All of paragraph 15.12 is added to column o according to the following criteria:

  • Inhalation LC50/ATE ≤ 2 mg/L/4h (C3 = 3 or 4), unless in accordance with 21.7.12; and/or
  • the product is a respiratory sensitizer (D3 = Sr, see also paragraph 21.7.4); and/or
  • the product is toxic to mammals by prolonged exposure (D3 = C, M, R, T, N, or I).

21.5.5.2 Paragraphs 15.12.3 and 15.12.4 are added to column o according to the following criterion:

  • Inhalation LC50/ATE > 2 - ≤ 10 mg/L/4h (C3 = 2), unless in accordance with 21.7.12.

21.5.5.3 Paragraph 15.12.3.2 is added to column o according to the following criteria:

  • Dermal LD50/ATE ≤ 1000 mg/kg (C2 = 2, 3, or 4); and/or
  • Oral LD50/ATE ≤ 300 mg/kg (C1 = 2, 3, or 4).

21.5.6 Paragraph 15.13 – Cargoes protected by additives

21.5.6.1 The requirement to assign paragraph 15.13 to column o is based on the information related to the product's tendency to polymerize, decompose, oxidize or undergo other chemical changes which may cause a hazard under normal carriage conditions, but which would be prevented by the addition of appropriate additives.

21.5.7 Paragraph 15.14 – Cargoes with a vapour pressure greater than atmospheric at 37.8°C

21.5.7.1 The requirement to assign paragraph 15.14 to column o is based on the following criterion:

  • Boiling point ≤ 37.8oC

21.5.8 Paragraph 15.16 – Cargo contamination

21.5.8.1 Paragraph 15.16.1 is deleted.

21.5.8.2 Paragraph 15.16.2 is added to column o according to the following criterion:

  • WRI>1

21.5.9 Paragraph 15.17 – Increased ventilation requirements

21.5.9.1 Paragraph 15.17 shall be added to column o according to the following criteria:

  • Inhalation LC50/ATE > 0.5 - ≤ 2 mg/L/4h (C3 = 3), unless in accordance with 21.7.12; and/or

  • Respiratory sensitizer (D3 = Sr, see also paragraph 21.7.4); and/or

  • Toxic to mammals by prolonged exposure (D3 = C, M, R, T, N, or I); and/or

  • Highly to severely corrosive to skin (≤ 1h exposure time) (D1 = 3B or 3C).

21.5.10 Paragraph 15.18 – Special cargo pump-room requirements

21.5.10.1 Paragraph 15.18 shall be added to column o according to the following criterion: Inhalation LC50/ATE ≤ 0.5 mg/L/4h (C3 = 4), unless in accordance with 21.7.12

21.5.11 Paragraph 15.19 – Overflow control

21.5.11.1 Paragraph 15.19 shall be added to column o according to the following criteria:

  • Inhalation LC50/ATE ≤ 2 mg/L/4h (C3 = 3 or 4), unless in accordance with 21.7.12; and/or
  • Dermal LD50/ATE ≤ 1000 mg/kg (C2 = 2, 3, or 4); and/or Oral LD50/ATE ≤ 300 mg/kg (C1 = 2, 3, or 4); and/or Respiratory sensitizer (D3 = Sr, see also paragraph 21.7.4); and/or
  • Severely corrosive to skin (≤ 3 min exposure) (D1 = 3C); and/or
  • Auto-ignition temperature ≤ 200oC; and/or
  • Explosive range ≥ 40% v/v in air and flashpoint < 23°C; and/or
  • Classified as Ship Type 1 on pollution grounds.

21.5.11.2 Only paragraph 15.19.6 shall apply if the product has any of the following properties:

  • Inhalation LC50/ATE > 2 mg/L/4h - ≤10 mg/L/4h (C3 = 2), unless in accordance with 21.7.12; and/or
  • Dermal LD50/ATE > 1000 mg/kg - ≤ 2000 mg/kg (C2 = 1); and/or
  • Oral LD50/ATE > 300 mg/kg - ≤ 2000 mg/kg (C1 = 1); and/or
  • Skin sensitizer (D3=Ss); and/or
  • Highly corrosive to skin (> 3 min - ≤ 1h exposure) (D1 = 3B); and/or
  • Flashpoint ≤ 60oC; and/or
  • Classified as Ship Type 2 on pollution grounds; and/or
  • Pollution category X or Y.

21.5.12 Paragraph 15.21 – Temperature sensors

21.5.12.1 Paragraph 15.21 is added to column o according to the heat sensitivity of the product. This requirement is related to pumps in cargo pump-rooms only.

Parent topic: Chapter 21 Criteria for assigning carriage requirements for products subject to the IBC Code
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