7 dangerous55 cargo

8/10/2019 7 Dangerous55 Cargo

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KNR/Jan14 SP-SMA Slide 1

Learning Objectives 7

Dangerous Cargo

At the end of this lesson, you should be able to :

Describe the content of IMDG Code

Identify the classification of DG

Describe the packaging requirements for DG Describe the marking, labelling and placarding of DG

List the documents required for the carriage of DG

Describe the stowage requirements for DG

State necessary precautions for loading anddischarging DG


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Introduction-Dangerous Cargo

The handling and carriage of dangerous goods must becarried out in full compliance with the laws of the country :

from which the dangerous goods are being shipped,

in whose vehicle or ships it is moved,

through which the goods will transit,

to its final destination.

So the classification, packaging and stowage of dangerous

goods must be in accordance with any legislation which may

be enforced in

the country of origin the country of destination

any country which it has entered

the country under whose flag the carrying vessel operates.


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IMDG Code

the International Maritime Dangerous Goods (IMDG)Code is based on the report of the United Nations

Committee of Experts on the Transport of Dangerous

Goods , which also forms the basis for legislation and

recommendations for transport of Dangerous Goodsby other modes - road, rail and air.

The IMDG code comes in 2 volumes and a

Supplement. The 2 volumes cover details of

dangerous goods, all of which are subdivided into:9 classes.


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Contents of IMDG Code

Contents of the IMDG Code may be summarised as

follows:

a) General Provisions, Definitions and Training.

b) Classification

c) Dangerous Goods list and limited quantitiesexceptionsVolume 2

d) Packing and Tank provisions

e) Consignment procedures

f) Construction and testing of packaging

g) Transport operationsh) Supplement covers, Ems, MFAG, ReportingProcedure, Packing, Pesticides & Others.


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Contents of IMDG Code

Dangerous Goods shall be divided into the following classes:

Class 1 - Explosives

Class 2 - Gases: compressed, liquefied or dissolved under pressure.Class 3 - Flammable liquids.

Class 4.1 - Flammable solids.

Class 4.2 - Substances liable to spontaneous combustion

Class 4.3 - Substances which, in contact with water, emit flammable

gases.Class 5.1 - Oxidizing substances

Class 5.2 - Organic peroxides

Class 6.1 - Poisonous (toxic) substances

Class 6.2 - Infectious substances

Class 7 - Radioactive materials

Class 8 - Corrosives

Class 9 - Miscellaneous dangerous substances, that is any other

substance which experience has shown, or may show, to be

of such dangerous character that the provisions of this part

shall apply to it.


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Packaging

Well made and in good condition.

Interior not dangerously affected by contact with contents. Strong enough to withstand normal handling- by sea.

Where absorbent or cushioning material is used, it shall be :

Capable of minimising the dangers to which the liquid may give rise.

So disposed as to prevent movement and that the receptacle remains

surrounded. Where reasonably possible, of sufficient quantity to absorb the liquid in

the event of breakage of the receptacle.

Receptacles to have an ullage (space) to allow for the highest

temperature during normal carriage.

Receptacles for gases under pressure shall be adequately

constructed, tested, maintained and correctly filled.

Empty receptacles used previously for carriage of dangerous

goods, to be treated as full, until thoroughly cleaned.


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Marking, Labelling and Placarding

Packages shall be durably marked with the correct technicalname.

Trade name alone shall not be used.

Have distinctive labels or placards to indicate dangerous

properties

Markings of technical name, labels or placards shall remainsidentifiable on packages surviving at least three months'

immersion in the sea except the followings which may be

exempted from labelling requirements :

low degree of hazard or packed in limited quantity; and

When special circumstances permit, packages that arestowed and handled in units that are identified by labels or

placards


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Documents

the correct technical name and description of thegoods shall be used (trade names alone shall not beused)

a signed certificate or declaration that the shipmentoffered for carriage is properly packaged and marked,

labelled or placarded, and in proper condition forcarriage.

shall have a special list or manifest setting forth, inaccordance with the classification set out in theregulation, the dangerous goods on board and thelocation thereof.

A detailed stowage plan which identifies by class andsets out the location of all dangerous goods on boardmay be used in place of such special list or manifest.


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Stowage Requirements

Stowed safely and appropriately according to the nature of

goods.

Incompatible goods shall be segregated from one another.

Explosives (except ammunition) stowed in a magazine and

segregated from detonators. Electrical apparatus and cables

in this compartment designed and used so as to minimise the

risk fire and explosion.

Goods which give off dangerous vapours shall be stowed in a

well ventilated space or on deck.

Where inflammable liquids or gases are carried, special

precautions to be taken where necessary against fire orexplosion.

Substances liable to spontaneous combustion or heating

shall not be carried unless adequate precautions have been

taken to prevent outbreak of fire.


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Precautions for Loading / Discharging

Dangerous Goods

Packages inspected for signs of damage, leakage prior to being stowed

in the compartment or container.

Keep combustible materials away from source of ignition.

Stow in places not liable to damage or heating

Segregate from substances liable to start or spread fire.

Ensure accessibility so that dangerous goods may be removed to

safety.

Naked lights and smoking prohibited in or near DG areas at all times.

Safeguard electrical appliances against short circuit and sparking to

avoid risk of ignition.

Ensure fire-fighting appliances in constant state of readiness.

Protective clothing and self-contained breathing apparatus should be

available if cargo is liable of emitting dangerous fumes.

If loading explosives, avoid bunkering, hot work and working of radar

and radio.


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Precautions for Loading / Discharging

Dangerous Goods- cont...

Funnel and ventilators be fitted with "spark arrestor" if loading

explosive.

DG cargo tightly stowed and well secured against movement- chafe.

Securing materials used should be compatible with the DG

themselves.

Securing DG packages which have been wetted by rain, and received

in a wet condition with frost or snow adhering, should he effectivelydried before loading.

If possible, DG should be handled and stowed during daylight hours, if

not, adequate lighting must be provided during the operation.

Ambient temperatures in relation to the flash point should be taken

into account -particularly in hot weather/tropical climates. If spillage occurs it should be carefully dealt with having regards to the

dangerous nature of the substances.

Loading and discharging of dangerous goods must be supervised by a

responsible officer. Establish communication with terminal.