Nil

ELEMENT

PERFORMANCE CRITERIA

1. Prepare for work

1.1. Work requirements from work instructions to ascertain:

1.1.1. material to be used

1.1.2. process required to complete work tasks

1.1.3. number of sheets to be silvered and holding area for completed items

1.2. Workplace health and safety requirements relevant to operating glass silvering equipment including personal protection needs, are observed throughout the work

1.3. Communication with others involved with the work is established and maintained to ensure efficient workflow coordination, personnel cooperation and safety throughout the application of this competency

1.4. Work sequence is planned in a logical order to suit the job

1.5. Tools, equipment and materials are selected and checked prior to use to ensure that they are appropriate for the work, of the required quality, serviceable and in a safe condition

1.6. Machines are identified and checked for safe and effective operation, including emergency stops, gauges, guards and controls

1.7. Procedures are identified for checking:

1.7.1. quality of materials and items produced

1.7.2. working condition of equipment

1.7.3. quality requirements for each stage of the silvering process

1.8. Communication with others involved with the work is established and maintained to ensure efficient workflow coordination, personnel cooperation and safety throughout the application of this competency

1.9. The processes for obtaining materials and moving completed work to the next process are identified

2. Prepare glass for silvering

2.1. If applicable, existing silver is removed by acid washing, cleaning and/or polishing

2.2. Glass to be silvered is washed with detergent in accordance with workplace procedures or industry practice

2.3. Glass to be silvered is rinsed with demineralised water in accordance with workplace procedures or industry practice

3. Conduct glass silvering operations

3.1. Tinning solution is applied in accordance with workplace procedures or industry practice

3.2. Glass is rinsed with demineralised water in accordance with workplace procedures or industry practice

3.3. Silver solution is applied to glass in accordance with workplace procedures or industry practice

3.4. Glass is washed and blow dried in accordance with workplace procedures or industry practice

3.5. Backing paint is applied in accordance with workplace procedures or industry practice

4. Complete work

4.1. Product is inspected for quality of work and items which do not meet quality requirements discarded or returned for reprocessing in accordance with workplace procedures

4.2. Completed work is placed in holding area in accordance with workplace procedures

4.3. Work area is cleaned and rubbish disposed of as appropriate

4.4. Equipment is cleaned and inspected for serviceability and stored in accordance with workplace procedures

4.5. Unserviceable equipment is tagged and faults identified in accordance with workplace procedures

4.6. Workplace documentation is completed in accordance with workplace requirements

4.7. Tools, equipment and unused materials are removed and stored appropriately

Required skills

collect, organise and understand information related to work orders, basic plans, and safety procedures

communicate ideas and information to enable confirmation of work requirements and specifications, coordination of work with work supervisor, other workers and customers, and the reporting of work outcomes and problems

plan and organise activities including the preparation and layout of the work area and the obtaining of equipment and materials to avoid any back tracking, workflow interruptions or wastage

work with others and in a team by recognising dependencies and using cooperative approaches to optimise workflow and productivity

use mathematical ideas and techniques to correctly complete measurements, calculate work requirements, optimise glass sizes for handling and processing and assemble required materials

use pre-checking and inspection techniques to plan work, avoiding re-working and wastage

use the workplace technology related to the operation of glass silvering equipment

Required knowledge

procedures for the planning, preparation, operation and completion of glass silvering operations

workflow in relation to the operation of glass silvering equipment

workplace procedures for the reporting of material, product or equipment faults

relevant Australian Safety Standards

identify, handle and store hazardous chemicals

characteristics of materials used and uses of products produced by glass silvering operations

workplace safety system requirements related to the operation of glass silvering equipment

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Critical aspects of evidence

Interpret work order/job instruction and locate and apply relevant information to operate glass silvering equipment

Plan and prepare for the conduct of glass silvering operations

Conduct glass silvering operations

Apply safe handling requirements for equipment, products and materials, including use of personal protective equipment

Follow work instructions, operating procedures and inspection practices to:

minimise the risk of injury to self and others

prevent damage to goods, equipment and products

maintain required production output and product quality

As a minimum, demonstrate the ability to:

prepare silvering formulae

perform equipment checks

set up and prepare silvering equipment

clean and prepare glass for silvering

apply tinning, silvering and copper solutions on glass

dry and apply packing paint

strip, buff, clean, prepare and re-silver mirrors

handle and store mirrors

clean solution tanks, lines, spray guns and equipment after use

Work effectively with others

Modify activities to cater for variations in workplace contexts and environment

Resource implications

Glass silvering equipment, demineralised water, acid, silvering chemicals, backing paint, workplace operating procedures, unprocessed materials, personal protective equipment and an appropriate work area.

Method of assessment

Assessment methods must confirm consistency of performance over time and in a range of workplace relevant contexts.

Assessment should be by direct observation of tasks and questioning on underpinning knowledge.

Assessment may be in conjunction with assessment of other relevant units of competency.

Context of assessment

Assessment may occur on the job or in a workplace simulated facility with relevant glass silvering equipment, materials, work instructions and deadlines.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Unit context

Work requires individuals to demonstrate discretion, judgement and problem solving skills in the set up and operation of glass silvering machines and equipment

Work is carried out in accordance with statutory requirements, environment legislation, manual handling procedures and relevant regulations and organisation insurance requirements

OHS requirements may include legislation, standards, building codes, material safety management systems and local safe operating procedures

Work is generally performed individually, with general supervision and may be part of a production process

Glass silvering

Glass silvering involves processes and equipment to silver glass for the manufacture of mirrors and other glass products

Tools and equipment are to include:

semi-automatic and computer-navigated silvering equipment

buffing and cleaning tables

spray booths

copper plating electrodes

extractor fans

dual nozzle spray guns

compressors

solution containers

heated drying racks

water distiller

silvering formulas

tinning solution

backing paint and stripping acid tanks for resilvering

Materials are to include but are not limited to:

annealed

sheet

laminated and toughened glass

Personal protective equipment

Personal protective equipment is to include that prescribed under legislation, regulations and enterprise practices and procedures. It may include:

gauntlets

gloves

safety glasses

respiratory masks

hard hats

safety footwear

aprons and overalls

Information and procedures

Workplace procedures relating to the setting up and operation of glass silvering processes and equipment

Equipment manufacturer specifications and operational procedures

Workplace procedures relating to the handling and movement of glass

Work instructions, including job sheets, cutting lists, plans, drawings and designs

Safety standards include personal protective equipment, OHS regulations and enterprise requirements

Australian Standards

Unit sector

Glass and Glazing

This unit contains employability skills.