4820 version 5
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Explain cleaning processes and safe handling of cleaning chemicals in
the dairy industry
Level
3
Credits
4
Purpose
People credited with this unit standard are able to: explain cleaning methods
and processes used in the dairy industry; explain uses and properties of
cleaning chemicals used in the dairy industry; explain safe handling and
storage of cleaning chemicals in the dairy industry; and demonstrate
knowledge of procedures to be followed when a cleaning chemical hazard
occurs in the workplace.
Subfield
Dairy Manufacturing
Domain
Dairy Product Safety and Risk Management
Status
Registered
Status date
26 August 2002
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
Organisational requirements refers 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,
manufacturers’ specifications, and legislative requirements.
2
Legislative requirements in this unit standard refer to legislation and regulations that
include but are not limited to – Health and Safety in Employment Act 1992, Health
and Safety in Employment Regulations 1995, and subsequent amendments.
 New Zealand Qualifications Authority 2016
4820 version 5
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3
Material safety data sheets in this unit standard refer to information sheets on safe
handling and storage of hazardous substances.
Elements and performance criteria
Element 1
Explain cleaning methods and processes used in the dairy industry.
Performance criteria
1.1
Objectives of cleaning are explained in relation to soil removal, product quality,
and product safety.
1.2
Cleaning control variables are explained in relation to maximising efficiency and
effectiveness of cleaning.
Range
1.3
variables – thermal energy, chemical energy, kinetic and
mechanical energy, time.
Cleaning processes are explained in relation to their application for soil removal
and hygiene control.
Range
processes – scrubbing, sweeping, vacuuming, high pressure
cleaning, foam cleaning, cleaning in place.
Element 2
Explain uses and properties of cleaning chemicals used in the dairy industry.
Performance criteria
2.1
Uses of cleaning chemicals are explained in relation to their application for soil
removal and hygiene control.
Range
2.2
chemicals – acids, alkalis, detergents, sanitisers.
Properties of cleaning chemicals are explained in relation to enhancement of
soil removal.
Range
properties – pH, wettability, saponification, protein solvency, action
on mineral deposits, reaction temperature range.
Element 3
Explain safe handling and storage of cleaning chemicals in the dairy industry.
Performance criteria
3.1
Material safety data sheets are explained in relation to their source of supply,
location, and standard format of information provided.
 New Zealand Qualifications Authority 2016
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3.2
Safe handling of cleaning chemicals is explained in relation to the protection of
self and others from harm through contact, absorption, ingestion and inhalation.
Range
3.3
protection – use of safety equipment and protective clothing;
safe handling – dispensing, dilution, transport of chemicals, nonmixing of chemicals, chemical spills, location and use of eye wash
stations and showers.
Safe storage of chemicals is explained in relation to organisational
requirements.
Range
chemicals – acids, alkalis, detergents, pesticides.
Element 4
Demonstrate knowledge of procedures to be followed when a cleaning chemical hazard
occurs in the workplace.
Range
includes but is not limited to – cleaning chemical spillage, external contact with
cleaning chemical on a person.
Performance criteria
4.1
The site procedures manual and safety section is identified and explained in
terms of the type of hazard.
4.2
Health hazard information is identified according to material safety data sheets
and site chemical handling procedures.
4.3
The procedure to be followed when a cleaning chemical hazard occurs is
identified according to material safety data sheets and/or site chemical handling
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.
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.
 New Zealand Qualifications Authority 2016
4820 version 5
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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