REQUIRED KNOWLEDGE

This describes the knowledge required for this unit

Relevant sections of IMO STCW Code and AMSA Marine Orders applicable to liquefied gas tankers

Relevant OHampS and pollution control legislation codes of practice policies and procedures

The basic principles and trends in liquefied gas tanker design and cargo containment and handling systems

a

types and design of liquefied gas tankers and their equipment

b

cargo containment systems with special reference to rules surveys tank construction materials coatings insulation and compatibility

c

cargo handling equipment including pumps and pumping arrangements vapourreturn systems piping systems and valves

d

e

tank atmosphere control systems including the use of inert gas and nitrogen

f

instrumentation of cargo containment and handling systems including that of gauging sampling and temperature control and pressure monitoring systems

Procedures and regulatory requirements for loading discharge handling and condition monitoring of liquefied gas cargo including

a

cargo loading and discharging preparations and procedures

b

Checklists

c

cargo condition maintenance on passage and in harbour

d

e

procedures for cargo transfer and changing cargoes

f

tank cleaning procedures

g

cargo sampling

h

ballasting and deballasting

i

warm up and gas freeing procedures

j

cooling down of a gasfree system from ambient temperature and the safety precautions involved

k

emergency procedures ie preplanned action in the event of leaks fire collision stranding emergency cargo discharge and personnel casualty

Cargo tank vent systems and procedures

a

types of filters strainers expansion devices and flame screens used

b

the storage generation and distribution systems for the most commonly used inert gas systems

TDMMAB MANAGE PROCEDURES FOR THE HANDLING LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

TDMMA407B MANAGE PROCEDURES FOR THE HANDLING, LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

c

liquid recirculation and reliquefaction systems

d

e

the function and use of gas detection and monitoring systems and CO monitoring systems

f

the firefighting safety and rescue systems appropriate for liquefied gas tankers

Liquefied gas cargo handling systems and equipment and the procedures for their use

Principles of liquefied gas cargo containment including

a

containment systems

b

rules

c

surveys

d

e

materials

f

coatings

g

insulation

h

compatibility

The properties and characteristics of liquefied gases and their vapours including

a

the definition of gas

b

simple gas laws

c

the gas equation

d

e

diffusion and mixing of gases

f

compression of gases

g

liquefaction of gases

h

refrigeration of gases

i

critical temperature

j

the practical significance of flashpoint

k

upper and lower explosive limits

l

autoignition temperature

m

compatibility of gases

n

reactivity

o

polymerisation

TDMMAB MANAGE PROCEDURES FOR THE HANDLING LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

TDMMA407B MANAGE PROCEDURES FOR THE HANDLING, LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

p

inhibitors

The properties of single liquids including

a

densities of liquids and vapours

b

variation with temperature

c

vapour pressure and temperature

d

The nature and properties of solutions including

a

the solubility of gases in liquids

b

miscibility between liquids

c

effects of temperature change

d

e

effects of dissolved substances on melting and boiling points

f

hydrates their formation and dispersion

g

hygroscopicity

h

drying of air and other gases

i

dewpoint and lowtemperature effects

Principles of toxicity of liquefied gas including

a

the modes by which liquefied gases and their vapours may be toxic

b

the toxic properties of inhibitors and of products of combustion of both materials of construction and of liquefied gases carried

c

acute and chronic effects of toxicity

d

e

the threshold limit value TLV

f

hazards of skin contact inhalation and ingestion

g

medical first aid and administering of antidotes

Maritime communication techniques as they are applied in the loading discharge handling and condition monitoring of liquefied gas cargo

TDMMAB MANAGE PROCEDURES FOR THE HANDLING LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

TDMMA407B MANAGE PROCEDURES FOR THE HANDLING, LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

REQUIRED SKILLS

This describes the basic skills required for this unit

Read and interpret instructions regulations procedures and information relevant to the management of the handling loading and discharging of liquefied gas cargoes

Communicate effectively with others during the handling loading and discharging of liquefied gas cargoes

Provide leadership to others during the handling loading and discharging of liquefied gas cargoes

Take appropriate initiatives related to the handling loading and discharging of liquefied gas cargoes

Interpret and apply security and safety practices and regulations when managing the handling loading and discharging of liquefied gas cargoes

Modify activities dependent on differing workplace contingencies risk situations and environments

Identify and solve problems associated with the handling loading and discharging of liquefied gas cargoes and take appropriate action based on available information

Monitor and anticipate problems and risks related to the handling loading and discharging of liquefied gas cargoes and take appropriate action

Adapt to differing types of vessels port facilities cargoes and equipment

Monitor the use of equipment related to the handling loading and discharging of liquefied gas cargoes

TDMMAB MANAGE PROCEDURES FOR THE HANDLING LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

TDMMA407B MANAGE PROCEDURES FOR THE HANDLING, LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria the Range Statement and the Assessment Guidelines for this Training Package

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, , the Range Statement and the Assessment Guidelines for this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

Assessment must confirm appropriate knowledge and skills to

a

Manage the safe loading discharge handling and condition maintenance of cargo on a liquefied gas tanker

b

Ensure all required safety and hazard control procedures are implemented during loading discharge handling and condition maintenance operations

c

Identify typical problems that may occur during liquefied gas cargo loading discharge handling and condition maintenance operations and take appropriate action

d

e

Apply relevant international conventions IMO and national codes tanker safety guides and port regulations related to liquefied gas tanker cargo operations

f

Communicate effectively with others during liquefied gas cargo handling and maintenance operations

Evidence required for demonstration of consistent performance

a

Performance is demonstrated consistently over a period of time and in a suitable range of contexts

b

Consistently applies underpinning knowledge and skills when

managing the safe loading discharge handling and condition maintenance of cargo on a liquefied gas tanker

identifying and evaluating liquefied gas cargo handling problems and determining appropriate courses of action

identifying and implementing improvements to liquefied gas cargo handling procedures

applying safety and hazard control precautions relevant to liquefied gas cargo handling operations

c

Shows evidence of application of relevant workplace procedures including

relevant sections of IMO STCW Code and AMSA Marine Orders

OHampS regulations and hazard prevention policies and procedures

ISM Code safety management system procedures and work instructions on the conduct of maintenance on liquefied gas tankers

TDMMAB MANAGE PROCEDURES FOR THE HANDLING LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

TDMMA407B MANAGE PROCEDURES FOR THE HANDLING, LOADING AND DISCHARGING OF LIQUEFIED GAS CARGOES

Evidence required for demonstration of consistent performance

continued

relevant manufacturers guidelines relating to the use of liquefied gas cargo handling plant and equipment including instructions on equipment capability and limitations

following onboard housekeeping processes

pollution management processes

d

e

Work is completed systematically with required attention to detail

f

Recognises and adapts appropriately to cultural differences in the workplace including modes of behaviour and interactions among crew and others

Context of assessment

a

Assessment of competency must comply with the assessment requirements of the relevant maritime regulations

b

Assessment of this unit must be undertaken within relevant marine authority approved and audited arrangements by a registered training organisation

As a minimum assessment of knowledge must be conducted through appropriate writtenoral examinations and

Appropriate practical assessment must occur

i

at the registered training organisation andor

ii

on an appropriate working or training vessel

Specific resources required for assessment

Access is required to opportunities to

a

participate in a range of practical exercises case studies andor other exercises that demonstrate the skills and knowledge to manage the safe loading discharge handling and condition maintenance of cargo on a liquefied gas tanker andor

b

manage the safe loading discharge handling and condition maintenance of cargo on board an operational liquefied gas tanker

VARIABLE

a.

Work must be carried out:

1

b.

Work is performed:

1

c.

Work involves:

1

d.

Work requires:

1

a

Vessel may include:

1

b

Liquefied gas cargo handling operations may be carried out:

1

2

3

4

5

6

7

VARIABLE

b

Liquefied gas cargo handling operations may be carried out:

(continued)

8

during liquefied gas cargo sampling

c

Operational cargo handling cycle of a liquefied gas tanker may include:

1

2

3

4

5

6

7

8

d

Liquefied gas cargo handling systems and equipment may include:

1

2

3

4

5

6

7

8

9

10

11

12

e

Personal protection clothing and equipment may include:

1

2

3

4

VARIABLE

f

Hazards associated with liquefied gas cargoes may include:

1

sources of ignition leading to explosion and fire

2

3

4

5

6

7

g

Documentation and recordsmay include:

1

2

3

4

5

6

7

8

9

10

11

h

Applicable legislation, regulations and codes may include:

1

2

VARIABLE

h

Applicable legislation, regulations and codes may include:

(continued)

3

instructions of relevant maritime authorities concerning liquefied gas cargo operations

4