15206 version 5
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Perform basic process operations for injection stretch-blow moulding
Level
1
Credits
5
Purpose
People credited with this unit standard are able to: identify and take
precautions against operation hazards; perform basic process operations;
and demonstrate knowledge of scrap material granulating. This unit standard
is to enable entry level people to perform basic process operations in an
injection stretch-blow moulding operation.
Subfield
Plastics Processing Technology
Domain
Injection Stretch-Blow Moulding
Status
Registered
Status date
18 September 2009
Date version published
18 September 2009
Planned review date
31 December 2013
Entry information
Recommended: Unit 23128, Demonstrate basic
knowledge of plastics production processes and
materials; or demonstrate equivalent knowledge and
skills.
Accreditation
Evaluation of documentation by NZQA and industry.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0134
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
This unit standard applies to either single stage or two stage injection stretch-blow
moulding processes.
2
All work practices must meet enterprise health and safety requirements.
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3
Definitions
Enterprise means an organisation where training and/or assessment is taking place,
and/or where the trainee is employed.
Enterprise procedure is defined as actions which comply with the policies, systems,
and directives in a particular enterprise. Enterprise procedure must comply with the
requirements of the Health and Safety in Employment Act 1992, and subsequent
amendments.
Elements and performance criteria
Element 1
Identify and take precautions against operation hazards.
Performance criteria
1.1
The danger and consequences of heating plastics materials in injection stretchblow moulding equipment are identified, and precautions are taken in
accordance with enterprise procedure.
Range
1.2
danger – burns, fumes;
consequences may include – molten material, purging, pressure
build-up, thermal degradation.
Machine, ancillary equipment, product, and plastics material hazards are
identified, and precautions are taken in accordance with enterprise procedure.
Range
machine hazards include – pinch areas, guard removal, guard
interlock bypassing, high pressure air, low pressure air, electricity,
electric shock, hydraulic hazards, hot oil for mould conditioning,
exhaust air.
Element 2
Perform basic process operations.
Performance criteria
2.1
The principle parts of the injection stretch-blow moulding injection, handling, and
blow cycles are identified.
Range
2.2
injection cycle – injection, injection profile, injection pressure, hold
pressure, screwback, cooling, opening, ejection, closing;
handling cycle may include – preform transport, temperature
profiling;
blow cycle – stretch, blow, cooling, exhaust air, opening, product
removal, closing.
Enterprise terminology is used to describe product, production, and equipment.
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2.3
Basic post-moulding operations are performed in accordance with enterprise
procedure.
Range
2.4
Raw material is loaded and dried in accordance with enterprise procedure, with
no damage to the plant, personnel, or material.
Range
2.5
loading hoppers, drying material.
Emergency stopping of the injection stretch-blow moulding equipment and
ancillary equipment is demonstrated in accordance with enterprise procedure.
Range
2.6
basic post-moulding operations may include – product removal,
product inspection, product packaging, scrap processing.
evidence may be simulated if required.
Production recording is carried out in accordance with enterprise procedure.
Element 3
Demonstrate knowledge of scrap material granulating.
Performance criteria
3.1
Scrap material is identified and differentiated from waste in accordance with
enterprise procedures.
Range
rubbish, re-usable plastics.
3.2
The purpose, principle of operation, and safety systems of material scrap
granulating equipment are described.
3.3
Personal safety equipment requirements for use when operating scrap
granulating equipment are described.
Range
3.4
safety equipment includes – ear protection, eye protection.
Hazards associated with the use of scrap granulating equipment are described.
Range
hazards – personal injury, material contamination, granulator
damage.
Please note
Providers must be accredited by the Qualifications Authority, or an inter-institutional body
with delegated authority for quality assurance, before they can report credits from
assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
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Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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.
Comments on this unit standard
Please contact Competenz info@competenz.org.nz if you wish to suggest changes to the
content of this unit standard.
 New Zealand Qualifications Authority 2016