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Carry out a homogenising process in the dairy industry
Level
3
Credits
4
Purpose
People credited with this unit standard are able to: prepare homogenising
equipment for operation; operate and monitor the homogenising equipment;
shut down homogenising equipment; record workplace information; and
demonstrate knowledge of the homogenising process.
Subfield
Dairy Manufacturing
Domain
Dairy Processing
Status
Registered
Status date
30 June 2003
Date version published
17 July 2009
Planned review date
31 December 2014
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Primary Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0022
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Work must be carried out in accordance with organisational requirements, licensing
requirements, legislative requirements, and industrial awards and agreements.
2
Workplace information may include Standard Operating Procedures (SOPs),
specifications, production schedules and batch/recipe instructions.
3
Homogenising equipment typically includes a supply pump, homogeniser block,
homogenising valve, pressure gauge, back-pressure valve and pressure relief valve.
Related equipment may include a deaeration unit.
4
Homogenising equipment may include pressure, micro-gap, centrifugal and
ultrasonic homogenisers.
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5
Confirming equipment status involves checking that hygiene and sanitation standards
are met, all safety guards are in place and equipment is operational.
6
Services may include power, steam, water, vacuum and compressed and
instrumentation air.
7
Process operation and monitoring functions may be manual or involve the use of a
process control system.
8
Definitions
Control points refer to those key points in a work process which must be monitored
and controlled. This includes food safety, quality and regulatory control points as
well as inspection points.
Legislative requirements include but are not limited to – Animal Products Act 1999,
Animal Products (Dairy) Regulations 2005, relevant Dairy Specifications/Notices.
Organisational 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 – site specific requirements,
company quality management requirements.
Elements and performance criteria
Element 1
Prepare homogenising equipment for operation.
Performance criteria
1.1
Workplace information is accessed to identify production requirements for
homogenisation.
1.2
Materials and services necessary for the homogenisation process are confirmed
and available to meet production requirements.
1.3
Homogenising equipment is checked in terms of status, condition and readiness
for use.
1.4
Homogenising equipment is set up to meet production requirements.
Element 2
Operate and monitor the homogenising equipment.
Range
monitoring may include but is not limited to – temperature, pressure,
throughput.
Performance criteria
2.1
Homogenising equipment is started up in accordance with organisational
requirements.
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2.2
Control points are monitored to confirm that performance is maintained to meet
specifications.
Range
2.3
monitoring may include but is not limited to – taking samples and
conducting tests.
Homogenising equipment is monitored in terms of operating condition.
Range
monitoring may include but is not limited to – carrying out routine
maintenance.
2.4
Homogenised product meets production specifications.
2.5
Out-of-specification product, process and equipment performance is identified,
rectified and/or reported in accordance with organisational requirements.
2.6
Homogenising equipment is cleaned and sanitised in accordance with
organisational requirements.
Element 3
Shut down the homogenising equipment.
Performance criteria
3.1
Homogenising equipment is shut down in accordance with organisational
requirements.
Range
3.2
shutdown – routine, emergency situation.
Waste is collected, treated and disposed of or stored for recycling in
accordance with organisational requirements.
Element 4
Record workplace information.
Performance criteria
4.1
Workplace information is recorded in accordance with workplace requirements.
Element 5
Demonstrate knowledge of the homogenising process.
Performance criteria
5.1
The purpose and basic principles of homogenisation are identified in terms of
links to related processes.
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5.2
The effects of raw materials are identified in terms of homogenisation process
outcomes.
Range
effects may include but are not limited to – solids (brix), acidity,
temperature, consistency and colour.
5.3
The quality requirements of homogenised products are identified.
5.4
Methods of monitoring control points and maintaining control of homogenising
equipment are identified in terms of causes of variation and corrective action
required.
Range
methods may include but are not limited to – process
specifications, procedures, operating parameters, equipment and
instrumentation components, materials and services, sampling
and testing, recording requirements.
5.5
Cleaning and sanitation requirements are identified in terms of changeovers
and types of shutdowns.
5.6
Safety issues are identified in terms of responsibilities for reporting problems.
Range
safety issues may include but are not limited to – health and safety
hazards and controls, lockout and tag procedures, environmental
protection and controls.
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.
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 the Primary Industry Training Organisation standards@primaryito.ac.nz if
you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016