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Title / Operate a lactose milling process in a dairy processing operation
Level / 4 / Credits / 5
Purpose / This unit standard is for people carrying out milk product processing in a dairy processing operation.
People credited with this unit standard are able to: demonstrate knowledge of the lactose milling process; prepare to operate a lactose milling process; and operate and monitor a lactose milling process, in a dairy processing operation.
Classification / Dairy Processing > Milk Products
Available grade / Achieved
Explanatory notes
1 Legislation
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.
2 Definitions
Control points refer to those key points in a work process which must be monitored and controlled. This includes food safety (critical), quality and regulatory control points as well as inspection points
Lactose equipment – grinding mills, sieves, conveyors and pumping systems, evaporators, crystallisation tanks, decanting plant, driers.
Materials – lactose and additives or other agents as required, consistent with the provisions of the Joint Australian and New Zealand Food Standards and other organisational requirements.
Monitoring the process – the use of production data such as performance control charts.
Organisational requirements – instructions to staff on policies and procedures which are documented in memo, electronic or manual format and are available in the workplace. These include but are not limited to site-specific and company standard operating procedures, food safety and quality management requirements.
Workplace information– Standard Operating Procedures (SOPs), specifications, production schedules and batch and/or recipe instructions.
3 This unit standard must be assessed in a realistic workplace environment. The candidate must be under realistic time pressures and use relevant commercial equipment.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the lactose milling process in a dairy processing operation.
Evidence requirements
1.1 The purpose of the lactose milling process is outlined in terms of the relationships between the milling process and other related processes.
1.2 The stages and changes which occur during lactose milling are identified and explained in terms of the effects of process stages on the end product.
1.3 Materials preparation requirements are identified and explained in terms of the effect of variation on the process.
1.4 The main methods used to mill lactose are identified and explained in terms of the variables in the process.
Range variables include but are not limited to – plant specifications, raw materials.
1.5 Methods of monitoring control points and maintaining control of the process are identified and outlined in terms of the common causes of variation and corrective action required.
Range methods include but are not limited to – process specifications, procedures, operating parameters, equipment and instrumentation components, materials and services, sampling and testing, recording requirements.
1.6 Shut-down, cleaning and sanitation requirements are identified and explained in terms of the changeover process and different types of shut-downs.
1.7 Safety issues related to the lactose milling process are identified and outlined in terms of organisational requirements.
Range safety issues include but are not limited to – health and safety hazards and controls, lockout and tag procedures, environmental protection and controls.
Outcome 2
Prepare to operate a lactose milling process in a dairy processing operation.
Evidence requirements
2.1 Workplace information is accessed to identify production requirements for milling in accordance with organisational requirements.
2.2 Materials and services necessary to the lactose milling process are confirmed and available to meet production requirements.
2.3 Milling equipment is checked to confirm status, condition and readiness for use in accordance with organisational requirements.
2.4 The milling process is set to meet production outputs in accordance with organisational requirements.
Outcome 3
Operate and monitor the lactose milling process in a dairy processing operation.
Evidence requirements
3.1 The lactose milling process is started up in accordance with organisational requirements.
3.2 Lactose milling equipment, product and control points are monitored to confirm that they meet production requirements.
Range monitoring may include but is not limited to – monitoring control points and parameters, adjusting operating parameters, plant checks, identifying sampling and testing requirements, taking samples, handling samples, dispatch of samples, conducting tests.
3.3 Any out-of-specification product, process and equipment performance is identified, rectified and/or reported in accordance with organisational requirements.
3.4 Lactose milling equipment is cleaned and sanitised in accordance with organisational requirements.
3.5 Waste is collected, treated and disposed of or stored for recycling in accordance with organisational requirements.
3.6 Workplace information is recorded in accordance with organisational requirements.
3.7 Lactose milling equipment is shut down in accordance with organisational requirements.
Range shutdown includes but is not limited to – putting plant on standby, routine, emergency situation.
Planned review date / 31 December 2020Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for Assessment /Registration / 1 / 27 July 2005 / 31 December 2016
Rollover / 2 / 17 July 2009 / 31 December 2016
Review / 3 / 16 July 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 (CMR). 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 if you wish to suggest changes to the content of this unit standard.
Primary Industry Training OrganisationSSB Code 101558 / Ó New Zealand Qualifications Authority 2015