NZQA Expiring unit standard
20513 version 4
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Title
Edgework glass with edgeworking machines
Level
4
Credits
Purpose
8
This unit standard is for experienced people in the glass
processing industry.
People credited with this unit standard are able to prepare for
edgeworking glass using edgeworking machines, and
edgework glass using edgeworking machines.
Classification
Glass and Glazing > Flat Glass
Available grade
Achieved
Explanatory notes
1
Definition
Worksite requirements – refer to instructions to staff on policy and procedures which
are documented in memo or manual format and are available in the workplace.
These requirements include but are not limited to – company specifications and
procedures, work instructions, manufacturer’s specifications, product quality
specifications, legislative requirements.
2
All work to be done in accordance with the requirements of the Health and Safety in
Employment Act 1992 and Resource Management Act 1991.
3
For the purposes of assessment against this unit standard at least three of the
following items of equipment are to be demonstrated – straight line edging machine,
straight line bevelling machine, shaped glass edging machine, shaped bevelling
machine, straight line V groove machine, radius corner machine, double edge
machine, straight line mitreing machine.
Outcomes and evidence requirements
Outcome 1
Prepare for edgeworking glass using edgeworking machines.
Evidence requirements
1.1
Preparation of work area and personal safety precautions are carried out in
accordance with worksite requirements.
Range
preparation includes but is not limited to – selection and use of
protective clothing and safety equipment, identification of hazards;
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
20513 version 4
Page 2 of 3
may include but is not limited to – ventilation of production area,
clearing work area, ensuring cleanliness of work area.
1.2
Edgeworking area is clear of debris and abrasive material before work
commences in accordance with worksite requirements.
1.3
Machine and wheel selection enables the work to be completed to specification
and without damage to the glass or to the tools and equipment.
1.4
Machines and wheels are prepared for edgeworking in accordance with
worksite requirements.
Range
1.5
Equipment is set to meet requirements of the job specifications and a test piece
of glass is run to check settings in accordance with worksite requirements.
Range
1.6
setting requirements may include but are not limited to – thickness
of glass, speed, wheel pressure, edge finish, mitre angle, bevel
width and angle, residual edge, V cut size.
Glass is checked to ensure job specifications and worksite requirements are
met.
Range
1.7
preparation may include but is not limited to – checking and
dressing wheels, checking coolant and water tanks, checking
coolant and lubricant flow, checking for machine wear.
requirements include but are not limited to – correct size, weight
and type, freedom from faults, edge damage, surface damage.
Selection and operation of lifting gear for large glass enables glass to be loaded
onto the machine without damage to the glass or machine, or danger to people
in the workplace.
Outcome 2
Edgework glass using edgeworking machines.
Evidence requirements
2.1
Edgeworking machine is operated in accordance with worksite requirements.
2.2
Glass is cleaned after edgeworking in accordance with worksite requirements.
Range
may include but is not limited to – hand wash and dry, machine
wash and dry.
2.3
Finished glass is checked to ensure it meets job specifications and is free from
surface or edge damage.
2.4
Finished glass is labelled or marked and prepared for dispatch or further
processing in accordance with worksite requirements.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2.5
20513 version 4
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Work area and equipment are left clean and free from edgeworking debris in
accordance with worksite requirements.
Replacement information
This unit standard and unit standards 20522, and 26032
were replaced by unit standard 28772.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 April 2004
31 December 2017
Review
2
21 May 2010
31 December 2017
Review
3
18 June 2015
31 December 2017
Rollover
4
15 October 2015
31 December 2020
Consent and Moderation Requirements (CMR) reference
0073
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016