Stevedoring Module

Module
#2
Working with Hazardous
substance & Dangerous
goods.

What are hazardous substances?
Hazardous substances are
those that, following worker
exposure, can have an
adverse effect on health
Prepared by L. Pryce

Examples of hazardous
substances include poisons,
substances that cause burns or
skin and eye irritation, and
substances that may cause cancer.
Many hazardous substances are
also classified as dangerous goods.

What are Dangerous Goods?
 Dangerous goods are substances, mixtures
or articles that, because of their physical,
chemical (physicochemical) or acute
toxicity properties, present an immediate
hazard to people, property or the
environment.

The types of substances
classified as dangerous goods
include explosives, flammable
liquids and gases, corrosives,
chemically reactive or acutely
(highly) toxic substances.

The criteria used to determine whether
substances are classified as dangerous
goods are contained in the Australian
Code for the Transport of Dangerous
Goods by Road and Rail (ADG
Code). The ADG Code contains a list of
substances classified as dangerous goods.

Dangerous Goods:
gases
flammable liquids
explosives
solids
substances containing oxygen
toxic substances
Corrosives

Handling hazardous materials
safely
 Here are 11 basic rules all employees who handle
hazardous materials should know and follow. - See
more at: http://safetydailyadvisor.blr.com/2012/04/11-
rules-for-safe-handling-of-hazardous-
materials/#sthash.zpjS3LMf.dpuf

Rule #1. Follow all established
procedures and perform job duties
as you’ve been trained.
Rule #2. Be cautious and plan
ahead. Think about what could go
wrong and pay close attention to
what you’re doing while you work.

Rule #3. Always use required
PPE—and inspect it carefully
before each use to make sure
it’s safe to use. Replace worn
out or damage PPE; it won’t
provide adequate protection.

Rule #4. Make sure all containers
are properly labeled and that the
material is contained in an
appropriate container. Don’t use
any material not contained or
labeled properly. Report any
damaged containers or illegible
labels to your supervisor right away.

Rule #5. Read labels and the material
safety data sheet (MSDS) before using
any material to make sure you
understand the hazards and
precautions.Rule #6. Use all materials solely for
their intended purpose. Don’t, for
example, use solvents to clean your
hands, or gasoline to wipe down
equipment.

Rule #7. Never eat or drink while handling
any materials, and if your hands are
contaminated, don’t use cosmetics or
handle contact lenses.
Rule #8. Read the labels and refer to
MSDSs to identify properties and hazards
of chemical products and materials.
Rule #9. Store all materials properly,
separate incompatibles, and store in
ventilated, dry, cool areas.

Rule #10. Keep you and your work
area clean. After handling any
material, wash thoroughly with soap
and water. Clean work surfaces at
least once a shift so that
contamination risks are minimized.

Rule #11. Learn about emergency
procedures and equipment.
Understanding emergency procedures
means knowing evacuation procedures,
emergency reporting procedures, and
procedures for dealing with fires and
spills. It also means knowing what to do
in a medical emergency if a co-worker is
injured or overcome by chemicals.

Dangerous Goods Handling
The IMDG (International Maritime
Dangerous Goods) code is a set of rules
and regulations that have set an industrial
standard for safely practicing the
movement of Dangerous Cargo through
international territories.

OOCL follows the IMDG code stringently,
taking proactive measures to protect the
environment while carrying these dangerous
goods. The IMDG Code is broken down into
the nine different classes. Under OOCL
policies, we carry the classes listed
below. Should you have any questions
regarding D/G acceptance, please contact one
of our customer service representatives.
(Orient Overseas Container Line)

Class 1.4
Explosives
Class 2
Gases
Class 2.2
Non-flammable
Gases

Class 2.3
Poisonous Gases
Class 3
Flammable
Liquid
Class 4.1
Flammable
Solids

Class 4.2
Spontaneously
Combustible
Class 4.3
Dangerous
When
Wet
Class 5.1
Oxidizing
Agent

Class 5.2
Organic
Peroxide
Class 6.1
Toxic
Substance
Class 8
Corrosive
Substance

Class 9
Misc
Dangerous
Goods
Limited
Quantity
Marking
Marine
Pollutant
Marking

Explosives
 Material that causes a sudden, almost instantaneous, release
of gas, heat, and pressure, accompanied by loud noise when
subjected to a certain amount of shock, pressure,
or temperature.
Read
more: http://www.businessdictionary.com/definition/explosi
ve.html#ixzz3I02Yw2we

Gases
Gas is one of the four fundamental
states of matter (the others
being solid, liquid, and plasma). A pure
gas may be made up of individual
atoms (e.g. a noble gas or atomic gas
like neon).

elemental molecules made from one
type of atom (e.g. oxygen),
or compound molecules made from a
variety of atoms (e.g. carbon dioxide). A
gas mixture would contain a variety of
pure gases much like the air.

What distinguishes a gas from
liquids and solids is the vast
separation of the individual gas
particles. This separation usually
makes a colorless gas invisible to the
human observer.

flammable liquids
 Flammable and combustible liquids are liquids that
can burn. They are classified, or grouped, as either
flammable or combustible by their flashpoints.
Generally speaking, flammable liquids will ignite
(catch on fire) and burn easily at normal working
temperatures.

Combustible liquids have the
ability to burn at temperatures
that are usually above working
temperatures.

There are several specific technical
criteria and test methods for identifying
flammable and combustible liquids.
Under the Workplace Hazardous
Materials Information System
(WHMIS), flammable liquids have a
flashpoint below 37.8°C (100°F).
Combustible liquids have a flashpoint
at or above 37.8°C (100°F) and below
93.3°C (200°F).

Solids
Solid is one of the four fundamental
states of matter (the others
being liquid, gas, and plasma). It is
characterized by structural rigidity and
resistance to changes of shape or
volume.

Unlike a liquid, a solid object does
not flow to take on the shape of its
container, nor does it expand to fill
the entire volume available to it like
a gas does.

The atoms in a solid are tightly bound
to each other, either in a regular
geometric lattice (crystalline solids,
which include metals and
ordinary ice) or irregularly
(an amorphous solid such as common
window glass).

Substances containing oxygen
 The oxidation state of oxygen is −2 in almost all known
compounds of oxygen. The oxidation state −1 is found in a
few compounds such as peroxides. Compounds containing
oxygen in other oxidation states are very uncommon:
−1⁄2 (super oxides), −1⁄3 (ozonides), 0
(elemental, hypofluorous acid), +1⁄2 (dioxygenyl), +1
(dioxygen difluoride), and +2 (oxygen difluoride).

Oxygen forms compounds with
almost all of the other known
elements, including some of the
rarest:

Toxic Substances
A toxic substance means any
chemical or mixture that may be
harmful to the environment and to
human health if inhaled, swallowed, or
absorbed through the skin.

Whenever possible, it is always best to avoid
using a toxic material either by eliminating
its use (by changing the method or process
for example) or by substituting the toxic
material with a less hazardous material.
Unfortunately, it is not always possible to
find a non-toxic substitute that still does the
job effectively and safely.

When considering substitution, the first
step is to obtain the Material Safety Data
Sheets (MSDSs) for all possible substitute
materials. Find out about all of the
hazards (health, fire, chemical reactivity)
of these materials before making any
changes.

Caution must be exercised so as to avoid
introducing a potentially more hazardous
situation. Choose the least hazardous
materials that can do the job effectively
and safely. Learn how to work safely with
them, too.

To prevent exposure to a toxic material,
control measures are used. Ventilation is a
very common control measure for toxic
materials. A well-designed and well-
maintained ventilation systems remove
toxic vapours, fumes, mists or airborne
dusts from the workplace before workers
are exposed. Removing the contaminated
air reduces the hazard of toxic materials.

When considering exposure
control measures such as
ventilation, there are many
considerations, including:

• Physical state of the toxic material (e.g. is it a
paste? a powder?, or a liquid?).
• Chemical properties (e.g. vapour pressure,
boiling point, odour threshold, etc.).
• Toxicity (e.g. LD50, LC50).
• Other potential health effects (e.g. eye or
skin irritation?, sensitizer?).
• Potential routes of exposure (inhalation? skin
absorption?).
• Quantity used.

LD50
An LD50 is a standard measurement of acute toxicity
that is stated in milligrams (mg) of pesticide per
kilogram (kg) of body weight. An LD50represents
the individual dose required to kill 50 percent of a
population of test animals (e.g., rats, fish, mice,
cockroaches).
LC50
The LC50 is a measure, e.g. in mg/l, of the
concentration of the toxin whereas a dose is a
more general term (need not be a
concentration but may be at a specific
temperature, etc.)

• Frequency of use (Once a day?
Every day?).
• The job requirements (e.g. how
the material is handled).
• Size and layout of the work area.

An assessment of the specific ways
toxics are stored, handled, used, and
disposed of is the best way to find out
if existing ventilation controls (and
other hazard control methods) are
adequate.

Some workplaces may need a complete
system of hoods and ducts to provide
acceptable ventilation. Others may
require a single, well-placed exhaust fan.
In some situations, no special ventilation
system may be needed when working with
small amounts of toxic materials which do
not give off airborne contaminants.

Storage
For the storage of toxic materials,
ensure that the storage area is clearly
identified with warning signs, is clear
of obstructions, and is accessible only
to trained and authorized personnel.

Before storing toxic materials, inspect
all incoming containers to ensure that
the containers are undamaged and are
properly labeled. Do not accept
delivery of defective containers. Also,
be sure to store toxic materials in the
type of containers recommended by
the manufacturer or supplier.

Some other important points for storage of toxic
materials include:
• Keep the amount of toxic material in storage
as small as possible.
• Inspect storage areas and containers
regularly for any deficiencies, including
leaking or damaged containers, expired shelf-
life or poor housekeeping. Correct all
deficiencies as soon as possible.

• Ensure that containers are tightly closed
when not in use and when empty. Keep empty
containers in a separate storage area. Empty
containers may contain hazardous toxic residue
--keep closed.
• Store containers at a convenient height for
handling, below eye level if possible. High
shelving increases the risk of dropping
containers and the severity of damage, injury
and/or exposure if a fall occurs.

• Store material within the temperature range
recommended by the chemical
manufacturer/supplier.
• To contain spills or leaks, the toxic material
containers should be stored in trays made of
compatible materials. For larger containers such
as drums or barrels, provide dikes around the
storage area and sills or ramps at door openings.
Storage tanks are above ground and surrounded
with a dike capable of holding entire contents.

Where should toxic materials be
stored?
 Toxic materials must be stored properly. In general, the
storage area for toxic materials should have the
following characteristics. Many of these
recommendations apply for safe chemical storage in
general.

• Ensure that the storage area is well-
ventilated and out of direct sunlight.
• Store toxics separately, away from
processing and handling areas, eating areas
and protective equipment storage. Separate
storage reduces the amount of damage and/or
injury caused in case of fires, spills or leaks. If
totally separate storage is not possible, use
physical separation to keep toxics away from
incompatible materials.

• The storage area should be fire-
resistant and constructed from non-
combustible materials.
• Ensure that emergency
eyewash/shower stations are readily
available nearby and are tested
regularly.
• Ensure that suitable fire
extinguishers and spill clean-up
equipment are available.

How to handle toxic materials
safely.
Safe handling and work procedures are
crucial for workplaces where
individuals use toxic materials. It is
vital that people working with
hazardous materials such as toxics are
properly trained regarding the
potential hazards.

Remember, if, at any time an
individual is unsure or has
questions about working with a
toxic material, they should
always talk with the supervisor.

This section refers to general safe
handling practices for toxic materials.
Instructions and training for
the specific handling of a particular
toxic material used in a workplace is
the responsibility of the supervisor
(employer).

In general, when handling toxic
materials:
• Use only the smallest amount
necessary to do the job.
• Prevent the release of toxic vapours,
dusts, mists or gases into the workplace
air.
• Wear appropriate personal protective
equipment (if necessary) to avoid
exposure to (eye, respiratory track or
skin) or contact with contaminated
equipment/surfaces.

• Be aware of the typical symptoms of
poisoning and first aid procedures. Report
any signs of illness or overexposure
immediately to the supervisor. Depending
on the material, medical attention for an
exposure may be required even if the
exposure did not seem excessive. With
some materials, symptoms of a severe
exposure can be delayed.

• Do not return contaminated or unused
material to the original container.
• Ensure containers are clearly labeled and
inspect containers for leaks or damage before
handling.
• Keep containers tightly closed when not in
use.
• Ensure suitable emergency equipment for
fires, spills and leaks are readily available.
• Ensure emergency eyewash/shower stations
are readily available and are tested regularly.

• To prevent spillage, use proper tools to
open containers and to transfer material.
Pour toxic liquids carefully from the
container to avoid splashing and spurting.
Avoid any welding, cutting, soldering or
other hot work on an empty container or
piping until all toxic liquid and vapours have
been cleared.
Maintain good housekeeping (e.g. clean
surfaces, no accumulation of dust).

safely
Toxic waste material must be disposed
of properly. Careless disposal of any
hazardous waste presents a potential
hazard to many individuals who may
not be trained or equipped to deal
with unexpected hazardous materials.

(e.g. caretaking staff, garbage
collectors, plumbers, water treatment
plant workers, firefighters, etc.).
Careless disposal can also cause
significant damage to the
environment.

The following are some general
recommendations for disposal of
waste toxic materials:
 Always review federal, provincial and local (municipal)
government requirements prior to the disposal of toxic
materials. In some cases, disposal by controlled
incineration or secure landfill may be acceptable.
Specific requirements may vary depending on the
jurisdiction.

• Toxic chemical waste must NOT be flushed
down sewer or sanitary drains as a method of
disposal. This practice is illegal and unsafe.
• Do not mix hazardous waste materials with
regular garbage destined for a landfill.
• Ensure that the waste container used is
compatible with the waste material.
• Always ensure that the waste container is
properly and accurately labeled.

• To avoid potential explosions, fires or spills,
do not mix incompatible mixtures in a single
waste container.
• Do not overfill liquid waste containers.
Liquid waste containers should only be filled to
about three-quarters capacity to allow for
vapour expansion and to reduce the potential
for spills occurring from moving overfilled
containers.

• In general, store waste material in the same
manner as the non-waste material. Always
consult the MSDS for any specific storage and
disposal recommendations from the
manufacturer/supplier.
• Empty containers may contain toxic
residues. Do not reuse the containers. Treat
the container as hazardous waste unless the
containers can be decontaminated safely and
properly.

Corrosives
Corrosives are materials that can attack
and chemically destroy exposed body
tissues. Corrosives can also damage or
even destroy metal. They begin to
cause damage as soon as they touch the
skin, eyes, respiratory tract, digestive
tract, or the metal. They might be
hazardous in other ways too,
depending on the particular corrosive
material.

Where should corrosives be
stored?
 In general, store corrosives separately, away from
processing and handling areas, and from other
materials. Separate storage can reduce the amount of
damage caused in case of fires, spills or leaks. If totally
separate storage is not possible, store corrosives away
from incompatible materials.

Some corrosives are incompatible
with each other. For example, acids
and bases react together, sometimes
violently. Do not store them beside
each other.
Chemical Bases

Walls, floors and shelving in corrosive
storage areas should be made from
materials that resist attack by
corrosives. Floors in areas where liquid
corrosives are stored should not allow
liquids to penetrate.

Since many corrosive liquids flow easily,
store them in corrosion-resistant trays
to contain spills or leaks. For large
containers, such as 250-litre (55-gallon)
drums, provide dikes around liquid
storage areas and sills or ramps at door
openings.
Dikes
Sills

Store containers at a convenient
height for handling, below eye
level if possible. High shelving
increases the risk of dropping
containers and the severity of
damage if a fall occurs.

Store corrosives in areas which are:
 Well ventilated.
 Supplied with adequate firefighting equipment.
 Supplied with suitable spill clean-up equipment and
materials.
 Labeled with proper warning signs.

At all times:
• Allow only trained, authorized people into
storage areas.
• Keep the amount of corrosive material in
storage as small as possible.
• Inspect storage areas regularly for any
deficiencies, including corrosion damage,
leaking containers, or poor housekeeping.
Correct all deficiencies as soon as possible.

storage temperature
Store corrosives in dry, cool areas, out of
direct sunlight and away from steam
pipes, boilers or other sources of heat. If
a sealed full drum or carboy of a
corrosive liquid is stored in direct
sunlight or near other heat sources,
vapour levels in the container can build
up.
 Drum Corboy

This leads to an increase in pressure
in the container. In severe cases, this
could cause the container to rupture.
A buildup of pressure might also
result in the material shooting out
into the face of the person opening
the container.

Follow the chemical manufacturer's or
supplier's recommendations for storage
temperature. Where appropriate, store
corrosive liquids at temperatures above or
below their freezing (melting) points.

Acetic acid, for example, has a
freezing point of approximately 17°C
(63°F) and can freeze in an unheated
room. As it freezes, it expands and can
crack a glass container.

Avoid rapid temperature changes in
corrosive liquid storage areas. If a
tightly-sealed corrosive liquid
container is cooled suddenly, a
partial vacuum could form inside it.
In extreme cases, the container might
collapse and leak.

Handling corrosive containers
safely
 Always handle containers of corrosives carefully.
Damaged containers may leak.
 Many workplaces receive corrosive liquids in large
metal drums or barrels and then fill smaller containers
from them.

Moving full drums weighing hundreds
of pounds by hand can be difficult and
hazardous. Drums can be moved in
specially designed drum cradles which
can also be used as individual drum
storage racks.

You can also purchase special carboy
caddies for bulky bottles of corrosives
and safety bottle carriers for smaller-
sized bottles of corrosives. Safety
equipment and laboratory supply
retailers sell this equipment.

Why might the container rupture
Acid containers, such as drums and
carboys, can cause particular problems
if they are not handled and stored
safely. Injuries have resulted from
sealed acid drums and carboys that
ruptured or burst.

There are many reasons why these
containers rupture:
• Heat can cause vapour levels inside
a sealed container to build up to the
point where the container bursts. This
is more likely to happen if the drum is
overfilled to begin with.

• Chemicals stored in a metal drum
might react with the metal and form
hydrogen gas which could ignite when
the drum is opened.
• The drum may not have been cleaned
thoroughly before it was filled. If the
previously-stored chemical is
incompatible with the corrosive,
chemical reactions could cause the drum
to explode.

• Air or inert gas pressure used to
empty the drum may cause
weakened or damaged, cause the
drums to burst.
• To avoid bursting or rupturing,
acid drums may need to be vented
periodically.

Handle corrosive materials
carefully
Take care when dispensing or
transferring corrosives from one
container to another. Dispense from
only one container at a time.

dispose of waste material safely
 All containers for corrosive wastes must be made from
corrosion-resistant materials. Identify the contents of
these containers with suitable labels.

Codes of Practice
 An approved code of practice is a practical guide to
achieving the standards of health, safety and welfare
required under the Work Health and Safety Act (the
WHS Act) and the Work Health and Safety Regulations
(the Regulations).
 Prepared by L. Pryce

A code of practice applies to anyone
who has a duty of care in the
circumstances described in the code. In
most cases, following an approved code
of practice would achieve compliance
with the health and safety duties in the
WHS Act, in relation to the subject
matter of the code.

Like regulations, codes of practice deal
with particular issues and do not cover
all hazards or risks that may arise. The
health and safety duties require duty
holders to consider all risks associated
with work, not only those for which
regulations and codes of practice exist.

Codes of practice are admissible in court
proceedings under the WHS Act and
Regulations. Courts may regard a code of
practice as evidence of what is known
about a hazard, risk or control and may
rely on the code in determining what is
reasonably practicable in the
circumstances to which the code relates.

Compliance with the WHS Act and
Regulations may be achieved by
following another method, such as a
technical or an industry standard, if
it provides an equivalent or higher
standard of work health and safety
than the code.

Hazard Management Procedure.
To provide a standard model for
systematic identification of hazards,
assessment of risks and to implement
control measures to protect the health,
safety and welfare of employees and
others at DECS site by:
Prepared by L.. Pryce

Complying with relevant legislation and
codes of practice, and the South
Australian Public Sector Code of Practice
for Crown Self-Insured Employers.
Complying with the DECS Occupational
Health, Safety & Welfare and Injury
Management Policy.

Maximizing organizational health and
wellbeing while delivering high quality
service and learning outcomes for
students and children.
Satisfying Safety and Wellbeing in the
Public Sector 2010-2015 Strategy
SWIPS). Managing risks associated
with DECS’s activities. (Department of Education
and Children’s Services)
(Safety and wellbeing in the Public Sector)2010-2015

International Maritime Dangerous
Goods Code
 IMDG Code or International Maritime Dangerous
Goods Code is accepted as an international guideline
to the safe transportation or shipment of dangerous
goods or hazardous materials by water on vessel.

IMDG Code is intended to protect
crew members and to prevent
marine pollution in the safe
transportation of hazardous
materials by vessel. It is
recommended to governments for
adoption or for use as the basis for
national regulations.

Layout of the IMDG Code
 The Code comprises 7 parts.
 It is presented in two books; Volume 1 and Volume
2.
 It is necessary to use both books to obtain the
required information when shipping dangerous
goods by sea.
 The Code also contains a Supplement.
 Prepared by L. Pryce

Volume 1 (Parts 1-2 & 4-7 of the Code) comprises:
Part 1 General provisions, definitions and training
Part 2 Classification
Part 4 Packing and tank provisions
Part 5 Consignment procedures
Part 6 Provisions for the construction and testing of
pressure receptacles, aerosol dispensers, small
receptacles containing gas (gas cartridges)
and fuel cell cartridges containing liquefied
flammable gas
Part 7 Requirements concerning transport operations

Volume 2 (Part 3 and the Appendices of the Code)
comprises:
Part 3 Dangerous Goods List (DGL), Special
Provisions Limited and Excepted
Quantities Exceptions
Appendix A List of Generic and N.O.S. (Not Otherwise
Specified) Proper Shipping Names
Appendix B Glossary of terms
Alphabetical Index

The supplement contains the following texts related to the Code:
• Emergency Response Procedures for Ships Carrying
Dangerous Goods
• Medical First Aid Guide
• Reporting Procedures
• IMO/ILO/ECE Guidelines for Packing Cargo Transport
Units
• Safe Use of Pesticides in Ships, Cargo Holds and CTUs
• International Code for the Carriage of Packaged
Irradiated Nuclear Fuel, Plutonium and High-Level
Radioactive Wastes on Board Ships

The purpose of the IMDG Code’s classification system is:
• To distinguish between goods which are considered
to be dangerous for transport and those which are
not.
• To identify the dangers which are presented by
dangerous goods in transport.
• To ensure that the correct measure are taken to
enable these goods to be transported safely without
risk to persons or property.

Dangerous goods are classified into 9 classes according
to properties. The way in which different classes of
dangerous goods are handled in transport will depend
upon these properties and hazards, for example:
• The type of packaging that can be used.
• What classes of dangerous goods can be transported
together in freight containers.
• Where the goods can be stored within the port and on
the ship.

The 9 classes:
Class 1 Explosives
Class 2 Gases
Class 3 Flammable liquids
Class 4 Flammable solids
Class 5 Oxidizing substances and organic peroxides
Class 6 Toxic and infectious substances
Class 7 Radioactive material
Class 8 Corrosive substances
Class 9 Miscellaneous dangerous substances and
articles
These 9 hazard classes have been established internationally by a United
Nations (UN) committee to ensure that all modes of transport (road, rail, air and
sea) classify dangerous goods in the same way

PSN and UN Number
 Within each of the 9 hazard classes dangerous goods are uniquely
identified by two pieces of information:
• A four-digit number known as the UN Number which is
 preceded by the letters UN.
• The corresponding Proper Shipping Name (PSN).
 For example, kerosene is identified in the IMDG Code by its UN
Number UN 1223 and the PSN Kerosene.

PSN and UN Number
Together the UN Number and PSN
uniquely identify dangerous goods to:
• enable rapid and precise identification
during transport to ensure the correct
handling, stowage, segregation etc, and
in the event of an emergency, ensure
that the correct procedures are followed.
(PSN) Proper Shipping Name

This helps the emergency services to obtain
information quickly about the properties of a
substance and the most appropriate action to
take.
Example:
There are approximately 2000 dangerous goods
that have been assigned a UN number and PSN.
For those dangerous goods where no specific UN
number and PSN have been assigned a generic or
N.O.S. (not otherwise specified) entry must be
used.
Example:
HYDROCHLORIC
ACID
UN 1760 CORROSIVE LIQUID, N.O.S. (technical
name)

Hazard labels
Each of the hazard classes are also identified by labels:

• The DGL is presented across 2 pages of the
IMDG Code and is divided into 18 columns for
each individual dangerous good listed.
• Much of the information contained in the DGL
is coded to make it easier to present in a table.
• The DGL is arranged in UN Number order;
column 1 and column 18 contains the UN
Number.

• To look up an entry, you just need the UN
Number.
• However, dangerous goods can also be
searched using the PSN.
• Therefore, if you do not have the UN Number
but have the PSN, you can find its associated
UN Number by looking at the alphabetical
index at the back of Volume 2.

Column 1 – UN Number
Contains the United Nations Number
assigned by the United Nations
Committee of Experts on the Transport of
Dangerous Goods (UN List).
Column 2 – Proper Shipping Name (PSN)
Contains the Proper Shipping Names in
upper case characters which may be
followed by additional descriptive text in
lower-case characters.

Column 3 – Class or Division
Contains the class and, in the case of class
1, the division and compatibility group.
Column 4 – Subsidiary Risk(s)
Contains the class number(s) of any
subsidiary risk(s). This column also identifies
if dangerous goods are marine pollutants
by showing the letter ‘P’:

Column 5 – Packing Group
Contains the packing group number (i.e. I, II or
III) where assigned to the substance or article.
Column 6 – Special Provisions
Contains a number referring to any special
provision(s) indicated in chapter 3.3.
Column 7a – Limited Quantities
Provides the maximum quantity per inner
packaging.

Column 7b – Excepted Quantities
Provides a code which can be
referenced to determine the maximum
quantity per inner and outer packaging.
Column 8 – Packing Instructions
Contains packing instructions for the
transport of substances and articles.

Column 9 – Special Packing Provisions
Contains special packing provisions.
Column 10 – IBC Packing Instructions
Contains IBC instructions which indicate the
type of IBC that can be used for the transport.
Column 11 – IBC Special Provisions
Refers to special packing provisions applicable
to the use of packing instructions bearing the
code ‘IBC’ in 4.1.4.2.

Column 12 – IMO Tank Instructions
This column is no longer used but used to
apply to IMO portable tanks and road
tank vehicles.
Column 13 – UN Tank and Bulk Container
Instructions
Contains T codes (see 4.2.5.2.6)
applicable to the transport of dangerous
goods in portable tanks and road tank
vehicles.

Column 14 – Tank Special Provisions
Contains TP notes (see 4.2.5.3) applicable to the
transport of dangerous goods in portable tanks and
road tank vehicles.
Column 15 – EmS
Refers to the relevant emergency schedules for FIRE
and SPILLAGE in ‘The EmS Guide – Emergency
Response Procedures for Ships Carrying Dangerous
Goods’.
Column 16 – Stowage and Segregation
Contains the stowage and segregation provisions as
prescribed in part 7.

Column 17 – Properties and Observations
Contains properties and observations on
the dangerous goods listed.
Column 18 – UN Number
Contains the United Nations Number for
ease of reference across both pages of
the printed book.

In the 2002 edition of the IMDG Code, training
was introduced for the first time.
The IMO Member Governments recognised that
the safe transport of dangerous goods
by sea is dependent upon the
appreciation, by all persons
involved, of the risks involved
and on a detailed understanding
of the IMDG Code requirements.
The training requirements
became mandatory with
Amendment 34-08

These training requirements highlight the
need for all shore-based personnel
involved in the shipment of dangerous
goods to receive training commensurate
with their responsibilities. The IMDG Code
defines shore-based personnel as those
who:
• classify dangerous goods and identify
PSNs
• pack dangerous goods

•mark, label or placard dangerous goods
• load/ unload CTUS
• prepare transport documents for dangerous
goods
• offer dangerous goods for transport
• accept dangerous goods for transport
• handle dangerous goods in transport
• prepare dangerous goods loading/stowage
plans
• load/unload dangerous goods into/ from
ships
• carry dangerous goods in transport
• enforce, survey or inspect for compliance
with applicable rules and regulations

Exis Technologies have developed
an interactive computer based e-
learning course. Designed primarily
for shore-based personnel, it allows
the user to select training relevant
to their specific job functions.

Further details on the course and a free
demo are available at www.imdge-
learning.com
Exis Technologies also designs Hazcheck
Systems for the management of
dangerous goods in sea transport. Exis
has been setting the dangerous goods
compliance benchmark in sea transport
for over 25 years.

Hazcheck Systems enable every link in the sea transport
chain
to automatically process dangerous goods shipments using
the IMDG Code, and produce documentation.
Hazcheck Online for shippers and forwarders
Hazcheck Workstation for shippers, port inspectors and
shipping line booking staff
Hazcheck Professional for ferry operators and feeder
container lines
Hazcheck Enterprise for deep sea container lines
Hazcheck Gateway for internet-delivered global DG
bookings
Hazcheck Toolkits for solution providers/information
systems developers
Please visit www.hazcheck.com for further information,

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