7.17.1 In addition to complying with the requirements
of 7.15 for cargo craft and with
the requirements of 7.8 for both
passenger and cargo craft as appropriate, craft types and cargo spaces
referred to in 7.17.2 intended for the carriage of dangerous goods
shall comply with the requirements of this paragraph, as appropriate,
except when carrying dangerous goods in limited quantities and excepted
quantities,footnote unless such requirements
have already been met by compliance with the requirements elsewhere
in this chapter. The types of craft and modes of carriage of dangerous
goods are referred to in 7.17.2 and in table 7.17-1, where the numbers appearing in 7.17.2 are referred
to in the top line. Cargo craft of less than 500 gross tonnage constructed
on or after 1 July 2002 shall comply with this paragraph, but the
Administration of the State whose flag the craft is entitled to fly
may, in consultation with the port State, reduce the requirements
and such reduced requirements shall be recorded in the document of
compliance referred to in 7.17.4. Craft constructed on or after 1
July 2002 but before 1 January 2011, with cargo spaces intended for
the carriage of packaged dangerous goods, shall comply with 7.17.3,
except when carrying dangerous goods specified as classes 6.2 and
7 and dangerous goods in limited quantitiesfootnote and excepted quantitiesfootnote in accordance with tables 7.17-1 and 7.17-3,
not later than the date of the first renewal survey on or after 1
January 2011.
7.17.2 Application of tables 7.17-1 and 7.17-2
The following craft types and cargo spaces shall govern the
application of tables 7.17-1 and 7.17-2:
-
.1 craft and cargo spaces not specifically designed
for the carriage of freight containers but intended for the carriage
of dangerous goods in packaged form including goods in freight containers
and portable tanks;
-
.2 purpose-built container craft and cargo spaces
intended for the carriage of dangerous goods in freight containers
and portable tanks. In this regard, a purpose-built container space
is a cargo space fitted with cell guides for stowage and securing
containers;
-
.3 craft and ro-ro spaces, including special category
spaces, intended for the carriage of dangerous goods; and
-
.4 craft and cargo spaces intended for the carriage
of solid dangerous goods in bulk.
Unless otherwise specified the following requirements shall
govern the application of tables 7.17-1, 7.17-2 and 7.17-3 to both "on deck" and "under
deck" stowage of dangerous goods. The numbers of the following sub-sections
are indicated in the first column of the above-mentioned tables. For
the purpose of this section, "on deck" shall be taken to mean spaces
on the weather deck.
Table 7.17-1 Application of the
requirements of 7.17.3 to different modes of carriage of dangerous goods in craft and
cargo spaces
|
Section 7.17.2
|
Weather decks (7.17.2.1 to 7.17.2.4 inclusive)
|
7.17.2.1
|
7.17.2.2
|
7.17.2.3
|
7.17.2.4
|
|
Section 7.17.3
|
Not
specifically designed
|
Container
cargo spaces
|
Ro-ro
spaces
|
Open
ro-ro spaces
|
Solid
dangerous goods in bulk (includes cargoes of group B of the Code of Safe
Practice for Solid Bulk Cargoes, 2004, except for cargoes denoted Materials
Hazardous in Bulk)
|
| 7.17.3.1.1
|
x
|
x
|
x
|
x
|
x
|
For application of
requirements of Part D to different classes of dangerous goods, see table
7.17-2
|
| 7.17.3.1.2
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.1.3
|
-
|
x
|
x
|
x
|
x
|
| 7.17.3.1.4
|
-
|
x
|
x
|
x
|
x
|
| 7.17.3.2
|
-
|
x
|
x
|
x
|
x
|
| 7.17.3.3
|
-
|
x
|
x
|
x
|
-
|
| 7.17.3.4.1
|
-
|
x
|
x¹
|
x
|
-
|
| 7.17.3.4.2
|
-
|
x
|
x¹
|
x
|
-
|
| 7.17.3.5
|
-
|
x
|
x
|
x
|
-
|
| 7.17.3.6.1
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.6.2
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.7
|
x
|
x
|
-
|
-
|
x
|
| 7.17.3.8.1
|
-
|
x
|
x
|
x
|
-
|
| 7.17.3.8.2
|
-
|
-
|
-
|
x²
|
x
|
| 7.17.3.9
|
-
|
-
|
-
|
x
|
x
|
| 7.17.3.10
|
x
|
-
|
-
|
x
|
x
|
| NOTES:
1 For classes 4 and 5.1 solids not
applicable to closed freight containers. For classes 2, 3, 6.1 and 8 when
carried in closed freight containers the ventilation rate may be reduced
to not less than two air changes per hour. For classes 4 and 5.1 liquids
when carried in closed freight containers, the ventilation rate may be
reduced to not less than two air changes per hour. For the purpose of
this requirement a portable tank is a closed freight container.
2 Applies only to ro-ro spaces, not capable
of being sealed.
x Wherever "x" appears in the table it means
that this requirement is applicable to all classes of dangerous goods as
given in the appropriate line of table 7.17-3, except as indicated by the
notes.
|
Table 7.17-2 Application of the
requirements of 7.17.3 to different classes of dangerous goods for craft and cargo
spaces carrying solid dangerous goods in bulk
|
Class
|
4.1
|
4.2
|
4.3³
|
5.1
|
6.1
|
8
|
9
|
|
Section
|
|
|
|
|
|
|
|
| 7.17.3.1.1
|
x
|
x
|
-
|
x
|
-
|
-
|
x
|
| 7.17.3.1.2
|
x
|
x
|
-
|
x
|
-
|
-
|
x
|
| 7.17.3.2
|
x
|
x4
|
x
|
x5
|
-
|
-
|
x5
|
| 7.17.3.4.1
|
-
|
x4
|
x
|
-
|
-
|
-
|
-
|
| 7.17.3.4.2
|
x6
|
x7
|
x7
|
x4, 6
|
-
|
-
|
x4, 6
|
| 7.17.3.4.4
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.6
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
| NOTES:
3 The hazards of substances in this class
which may be carried in bulk are such that special consideration must be
given by the Administration to the construction of the craft involved in
addition to meeting the requirements enumerated in this table.
4 Only applicable to Seedcake containing
residues of solvent extractions, to Ammonium nitrate and to Ammonium
nitrate fertilizers.
5 Only applicable to Ammonium nitrate and to
Ammonium nitrate fertilizers. However, a degree of protection in
accordance with standards contained in the International Electrotechnical
Commission publication 79 - Electrical Apparatus for Explosive Gas
Atmospheres is sufficient.
6 Only suitable wire mesh guards are
required.
7 For seedcake containing residues of
solvent extraction and cargoes of BC Code Class 4.3, two separate fans
shall be permanently fitted unless portable type fans have been adapted
for being securely fitted (e.g., fixed) prior to loading and during the
voyage. The ventilation system shall comply with the provisions of
7.17.3.4.1 and 7.17.3.4.2. Ventilation shall be such that any escaping
gases cannot reach public spaces or crew accommodation on or under
deck.
|
Table 7.17-3 Application of the
requirements of section 7.17.3 to different classes of dangerous goods except solid
dangerous goods in bulk
|
Class
|
1.1 to 1.69
|
1.4 S
|
2.1
|
2.2
|
2.3
flammable
17
|
2.3
non-flammable17
|
3
FP12
< 23°C
|
3
FP12
≥ 23°C to ≤ 60°C
|
4.1
|
4.2
|
4.3 liquids18
|
4.3 solids
|
5.1 10
|
5.213
|
6.1 liquids
FP12
< 23°C
|
6.1 liquids
FP12
≥ 23°C to ≤ 60°C
|
6.1 liquids
|
6.1 solids
|
8 liquids
FP12
< 23°C
|
8 liquids
FP12
≥ 23°C to ≤ 60°C
|
8 liquids
|
8 solids
|
9
|
|
Section
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 7.17.3.1.1
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.1.2
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
-
|
| 7.17.3.1.3
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| 7.17.3.1.4
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| 7.17.3.2
|
x
|
-
|
x
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x15
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
x14
|
| 7.17.3.3
|
x
|
x
|
x
|
x
|
-
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
-
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
-
|
| 7.17.3.4.1
|
-
|
-
|
x
|
-
|
-
|
x
|
x
|
-
|
x8
|
x8
|
x
|
x
|
x8
|
-
|
x
|
x
|
-
|
x8
|
x
|
x
|
-
|
-
|
x8
|
| 7.17.3.4.2
|
-
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
x14
|
| 7.17.3.5
|
-
|
-
|
-
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
x
|
x
|
x
|
-
|
x
|
x16
|
x16
|
-
|
-
|
| 7.17.3.6
|
-
|
-
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x11
|
| 7.17.3.7
|
-
|
-
|
-
|
-
|
-
|
-
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
-
|
x
|
x
|
-
|
-
|
x
|
x
|
-
|
-
|
-
|
| 7.17.3.8
|
x9
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x10
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.9
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
| 7.17.3.10
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
x
|
| NOTES:
8 When "mechanically-ventilated spaces" are
required by the IMDG Code.
9 Stow 3 m horizontally away from the
machinery space boundaries in all cases.
10 Refer to the IMDG Code.
11 As appropriate for the goods to be
carried.
12 FP means flashpoint.
13 Under the provisions of the IMDG Code,
stowage of class 5.2 dangerous goods under deck or in enclosed ro-ro
spaces is prohibited.
14 Only applicable to dangerous goods
evolving flammable vapour listed in the IMDG Code.
15 Only applicable to dangerous goods having
a flashpoint less than 23ºC listed in the IMDG Code.
16 Only applicable to dangerous goods having
a subsidiary risk class 6.1.
17 Under the provisions of the IMDG Code,
stowage of class 2.3 having subsidiary risk class 2.1 under deck or in
enclosed ro-ro spaces is prohibited.
18 Under the provisions of the IMDG Code,
stowage of class 4.3 liquids having a flashpoint less than 23ºC under
deck or in enclosed ro-ro spaces is prohibited.
|
7.17.3.1.1 Arrangements shall be made to ensure
immediate availability of a supply of water from the fire main at
the required pressure either by permanent pressurization or by suitably
placed remote starting arrangements for the fire pumps.
7.17.3.1.2 The quantity of water delivered shall
be capable of simultaneously supplying the arrangements required by
7.17.3.1.3 for the largest designated cargo space and the four nozzles
of a size and at a pressure as specified in 7.7.5, capable of being trained on any part of the cargo space when
empty. This requirement shall be met by the total capacity of the
main fire pump(s) not including the capacity of the emergency fire
pump, if fitted. This amount of water may be applied by equivalent
means to the satisfaction of the Administration.
7.17.3.1.3 Means shall be provided of effectively
cooling the designated under deck cargo space by with water at not
less than 5 ⋉/min/m2 of the horizontal area of cargo
spaces, either by a fixed arrangement of spraying nozzles, or flooding
the space with water.footnote Hoses may be
used for this purpose in small cargo spaces and in small areas of
larger cargo-spaces at the discretion of the Administration. In any
event the drainage and pumping arrangements shall meet the requirements
of 7.8.6 and be such as to prevent
the build-up of free surfaces. If this is not possible, the adverse
effect upon stability of the added weight and free surface of water
shall be taken into account.
7.17.3.1.4 Provision to flood a designated under-deck
cargo space with suitable specified media may be substituted for the
requirements in 7.17.3.1.3 above. Substitution by a high expansion
foam system complying with regulation
II-2/10.4.1.1.2 of the Convention is also acceptable.
7.17.3.1.5 The requirements of 7.17.3.1.1 to 7.17.3.1.4
may be fulfilled by a water spray system approved by the Administration
based on the standards developed by the Organization,footnote provided that the amount of water required
for fire-fighting purposes in the largest cargo space allows simultaneous
use of the water spray system plus four jets of water from hose nozzles
in accordance with 7.17.3.1.2.
7.17.3.1.6 Craft carrying dangerous goods shall
be provided with three fire hoses and nozzles complying with 7.7.5.6 in addition to those required by 7.7.5.5.
7.17.3.2 Sources of ignition
Electrical equipment and wiring shall not be fitted in enclosed
cargo spaces or vehicle decks, unless it is essential for operational
purposes. However, if electrical equipment is fitted in such spaces,
it shall be of a certified safe typefootnote for
use in the dangerous environments to which it may be exposed unless
it is possible to completely isolate the electrical system (by removal
of links in the system, other than fuses). Cable penetrations of the
decks and bulkheads shall be sealed against the passage of gas or
vapour. Through runs of cables and cables within the cargo spaces
shall be protected against damage from impact. Any other equipment
which may constitute a source of ignition of flammable vapour shall
not be permitted.
7.17.3.3 Detection system
Enclosed cargo spaces shall be provided with an approved
automatic smoke detection system complying with 7.7.1 or with a detection system which,
in the opinion of the Administration, gives equivalent protection.
7.17.3.4.1 Adequate power ventilation shall be
provided in enclosed spaces. The arrangement shall be such as to provide
for at least six air changes per hour in the cargo space based on
an empty space and for removal of vapours from the upper or lower
parts of the space, as appropriate.
7.17.3.4.2 The fans shall be such as to avoid
the possibility of ignition of flammable gas air mixtures. Exhaust
fans shall be of non-sparking type.footnote Suitable
wire mesh guards having a mesh size not exceeding 13 mm x 13 mm shall
be fitted over inlet and outlet ventilation openings to prevent foreign
objects from entering into the casing.
7.17.3.4.3 If adjacent spaces are not separated
from cargo spaces by gastight bulkheads or decks, ventilation requirements
shall apply to the adjacent spaces as for the cargo space itself.
7.17.3.4.4 Natural ventilation shall be provided
in enclosed spaces intended for the carriage of solid dangerous goods
in bulk, where there is no provision for mechanical ventilation.
7.17.3.4.5 For open-top container craft, power
ventilation is required only for the lower part of the cargo hold
for which purpose-built ducting is required. The ventilation rate
shall be at least two air changes per hour, based on the empty hold
volume below the weather deck.
Where it is intended to carry flammable or toxic liquids
in enclosed spaces, the bilge pumping system shall be designed to
ensure against inadvertent pumping of such liquids through machinery
space piping or pumps. Where large quantities of such liquids are
carried, consideration shall be given to the provision of additional
means of draining those spaces as follows:
-
.1 if the bilge drainage system for cargo spaces
is additional to the system served by pumps in the machinery space,
the capacity of the system shall be not less than than 10 m3/h
per cargo space served. If the additional system is a common system,
the capacity need not exceed 25 m3/h. The additional bilge
system need not be arranged with redundancy. Whenever flammable or
toxic liquids are carried, the bilge line into the machinery space
shall be isolated either by fitting a blank flange or by a closed
lockable valve;
-
.2 if bilge drainage of cargo spaces is arranged
by gravity drainage, the drainage shall be either led directly overboard
or to a closed drain tank located outside the machinery spaces. The
tank shall be provided with vent pipe to a safe location on the open
deck;
-
.3 enclosed spaces outside machinery spaces containing
bilge pumps serving cargo spaces intended for carriage of flammable
or toxic liquids shall be fitted with separate mechanical ventilation
giving at least six air changes per hour. Electrical equipment in
the space shall be of certified safe type.footnote If the space has access from another enclosed
space, the door shall be self-closing; and
-
.4 drainage from a cargo space into bilge wells
in a lower space is only permitted if that space satisfies the same
requirements as the cargo space above.
7.17.3.6 Personnel protection
7.17.3.6.1 Four sets of full protective clothing
resistant to chemical attack shall be provided in addition to the
firefighter's outfits required by 7.10 and
shall be selected taking into account the hazards associated with
the chemicals being transported and the standards developed by the
Organization according to the class and physical state. The protective
clothing shall cover all skin, so that no part of the body is unprotected.
7.17.3.6.2 At least two self-contained breathing
apparatuses additional to those required by 7.10 shall be provided. In addition to the requirements of 7.10.3.2.2, two spare charges suitable
for use with the breathing apparatus shall be provided for each required
apparatus.
7.17.3.7 Portable fire extinguishers
Portable fire extinguishers with a total capacity of at
least 12 kg of dry powder or equivalent shall be provided for the
cargo spaces. These extinguishers shall be in addition to any portable
fire extinguishers required elsewhere in this chapter.
7.17.3.8 Fixed fire-extinguishing system
7.17.3.8.1 Cargo spaces, except for open decks,
shall be provided with an approved fixed fire-extinguishing system
complying with the provisions of 7.7.3 or
with a fire-extinguishing system which, in the opinion of the Administration,
gives equivalent protection for the cargo carried.footnote
7.17.3.8.2 Each open ro-ro space having a deck
above it and each ro-ro space not capable of being sealed shall be
fitted with an approved fixed pressure water-spraying systemfootnote for manual operation which shall protect
all parts of any deck and vehicle platform in such space, except that
the Administration may permit the use of any other fixed fire-extinguishing
system that has been shown by full-scale test to be no less effective.
In any event the drainage and pumping arrangements shall meet the
requirements of 7.8.6, have valves
operable from outside the space at a position in the vicinity of the
extinguishing system controls and be such as to prevent the build-up
of free surfaces.footnote If this is not
possible the adverse effect upon stability of the added weight and
free surface of water shall be taken into account to the extent deemed
necessary by the Administration in its approval of the stability information.
7.17.3.9 Separation between ro-ro spaces and open
ro-ro spaces
A separation shall be provided between a ro-ro space and
an adjacent open ro-ro space. The separation shall be such as to minimize
the passage of dangerous vapours and liquids between such spaces.
Alternatively, such separation need not be provided if both spaces
fully comply with the requirements for ro-ro spaces in Part D.
7.17.3.10 Separation between ro-ro spaces and
weather decks
A separation shall be provided between a ro-ro space and
the adjacent weather deck. The separation shall be such as to minimize
the passage of dangerous vapours and liquids between such spaces.
Alternatively, a separation need not be provided if the ro-ro space
fully complies with the requirements for ro-ro spaces in Part D. However, a separation is still
required when dangerous goods carried shall be loaded on the weather
deck only.
7.17.4 Document of compliance
The Administration shall provide the craft with an appropriate
document as evidence of compliance of construction and equipment with
the requirements of this Part D.footnote