4175 version 6
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Set up and monitor a Twistset machine
Level
4
Credits
24
Purpose
People credited with this unit standard are able to: prepare chemicals for
Twistset processing; set up Twistset for processing; and monitor yarn during
Twistset processing.
Subfield
Textiles Manufacture
Domain
Woollen Yarn Processing
Status
Registered
Status date
23 April 2008
Date version published
23 April 2008
Planned review date
31 December 2013
Entry information
Prerequisite: Unit 4174, Process yarn in a Twistset
machine, or demonstrate equivalent knowledge and
skills.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0030
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Performance of the elements must comply with the Hazardous Substances and New
Organisms Act 1996; the Health and Safety in Employment Act 1992; and the
Resource Management Act 1991.
2
Workplace productivity and quality requirements must be met.
3
Workplace procedures refer to the verbal or documented procedures for performing
work activities and include health and safety, operational, environmental, and quality
management requirements. They may refer to manuals, manufacturer's
specifications, codes of practice, or policy statements.
 New Zealand Qualifications Authority 2016
4175 version 6
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Elements and performance criteria
Element 1
Prepare chemicals for Twistset processing.
Performance criteria
1.1
Liquor and chemical handling, storage, discharge, and disposal procedures are
described in terms of workplace requirements and local authority regulations.
1.2
Chemicals are identified and confirmed with workplace procedure.
1.3
Chemicals are prepared in accordance with workplace procedures.
1.4
Chemicals batches prepared for stock are tested in accordance with workplace
procedures to confirm that batch meets specifications.
Element 2
Set up Twistset for processing.
Performance criteria
2.1
Twistset machine is prepared for operation in accordance with workplace
procedures.
Range
yarn identified, creel loaded, tension devices, break detectors,
yarn thread up, freize unit, coiler speed, belt speed, bowl
conditions, squeeze press operation, dryer conditions,
accumulator settings, winder speed, cone length, cone magazines,
initial chemical charges, chemical addition controls, liquor flows.
Element 3
Monitor yarn during Twistset processing.
Performance criteria
3.1
Process conditions are monitored and maintained during processing in
accordance with workplace procedures.
3.2
Samples are taken and tests carried in accordance with workplace procedures.
3.3
Test results are assessed and machine and chemical adjustments made to
achieve product quality in accordance with workplace procedures.
Please note
Providers must be accredited by NZQA, 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.
 New Zealand Qualifications Authority 2016
4175 version 6
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Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
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