Elements and Performance Criteria

Legislative/regulatory requirements

All work must comply with relevant Federal and State or Territory legislative or regulatory requirements.


Types of special spotting agents include:

Wet-side and dry-side agents which include:

sodium thiosulphate

formic acid

oxalic acid

iodine

acetone

methyl alcohol

oxidising and reducing bleaches

digestion agents

solvents

detergents


Safety and handling requirements include:

personal protective equipment (PPE)

procedures for use of certain types of container materials (eg: plastic, metal)

flammability

solubility

sample testing requirements

requirements for mixing and diluting


Procedures for identifying the type of stain include:

considering the information provided by the customer

identifying the colour of the stain

identifying the feel or odour of the stain


Type of stain includes:

organic or non-organic

dye stains

albumin stains

protein stains

vegetable adhesives

mustard

tomato sauce

wine


Special fabrics include:

taffeta

satin

crepe

chiffon

moire fabrics

embossed fabrics

pile fabrics

velvet

metallic fabric

pigment print

flock prints

acetate sharkskin

sequins

wools and silks

smooth silks and cottons


Fabric requirements include:

tamping requirements

brushing requirements

special needs for keeping fabric flat or not

rinsing needs

procedures for use of certain equipment and chemicals

susceptibility to breaks and creasing

side of fabric upon which to apply spotting


Advanced spotting processes and procedures include:

Processes include:

digestion

bleaching

Procedures include:

steam treatment

synthetic detergent treatment

ammonia action

chemical action

oxidising

reducing


Resource requirements include:

spotting board

drying cabinet

tumbler

spotting brushes

spatula

towel

cheesecloth

blotters

relevant machines and equipment


Factors affecting spotting procedures include:

time

temperature

moisture

pH concentration


OHS practices

OHS practices must include hazard identification and control, risk assessment and implementation of risk reduction measures specific to the tasks described by this unit, and may include:

manual handling techniques

standard operating procedures

personal protective equipment

safe materials handling

taking of rest breaks

ergonomic arrangement of workplaces

following marked walkways

safe storage of equipment

housekeeping

reporting accidents and incidents

other OHS practices relevant to the job and enterprise


Relevant documentation includes:

information about the procedure employed

customer invoicing

customer pick up information

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Demonstrates skills and knowledge to:
follow the steps for stain identification
establish and identify the spotting requirements
prepare articles for spotting
perform spotting procedures
Consistently applies skills and knowledge when:
organising work
completing tasks
identifying improvements
using workplace practices
using OHS practices
recording and reporting accidents and incidents
assessing operational readiness of equipment used and work processes
recognising and adapting to cultural differences in the workplace, including modes of behaviour and interactions
completing work systematically with attention to detail without damage to goods and equipment

Context and specific resources for assessment
Assessment may occur on the job or in an appropriately simulated environment and requires access to work areas, materials and equipment and to information on workplace practices and OHS practices.

Guidance information for assessment
This unit may be assessed independently or in combination with other relevant units.