NZQA registered unit standard
28981 version 1
Page 1 of 3
Title
Demonstrate knowledge of the risks, testing and control of
microorganisms in a dairy processing operation
Level
3
Purpose
Credits
5
This theory-based entry-level unit standard is for people
carrying out basic milk processing functions in a dairy
processing operation.
People credited with this unit standard are able to demonstrate
knowledge of: the risks the main types of microorganisms pose
to a dairy processing operation; the classification and routine
testing of microorganisms; and the microbiological controls
used for the prevention of product contamination, in a dairy
processing operation.
Classification
Dairy Processing > Milk Processing
Available grade
Achieved
Explanatory notes
Legislation relevant to this unit standard includes but is not limited to the Animal Products
Act 1999, Health and Safety in Employment Act 1992, and Animal Products (Dairy)
Regulations 2005.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the risks the main types of microorganisms pose to a dairy
processing operation
Evidence requirements
1.1
Bacteria are described in terms of the risks they pose to a dairy processing
operation.
1.2
Fungi are described in terms of the risks they pose to a dairy processing
operation.
1.3
Bacteriophage are described in terms of the risks they pose to a dairy
processing operation.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28981 version 1
Page 2 of 3
Outcome 2
Demonstrate knowledge of classification and routine testing of microorganisms in a dairy
processing operation.
Evidence requirements
2.1
Classification and binomial nomenclature of microorganisms is described in
terms of general classification into genera and species.
2.2
Routine test techniques for microorganisms are described in terms of their
general purposes
Range
routine test techniques may include but are not limited to – swabs,
exposure plates, in-process samples, final product samples;
evidence is required of two test techniques.
Outcome 3
Demonstrate knowledge of the microbiological controls used for the prevention of product
contamination in a dairy processing operation.
Evidence requirements
3.1
Microbiological control is described in terms of pre-requisites for hygiene and
product safety
Range
pre-requisites may include but are not limited to – personal
hygiene, factory and plant hygiene, raw material control, building
and plant design, environmental control, water quality,
pasteurisation;
evidence is required for five pre-requisites.
3.2
Microbiological control is described in terms of sampling points for monitoring
and controlling the micro flora of a dairy product relevant to the individual’s
workplace.
3.3
Consequences of failure to follow microbiological controls and procedures are
identified and described in terms of organisational requirements.
Planned review date
31 December 2020
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28981 version 1
Page 3 of 3
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
18 June 2015
N/A
Consent and Moderation Requirements (CMR) reference
0022
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 (CMRs). 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.
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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016