NZQA Expiring unit standard
25915 version 2
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Title
Carry out a chemical mixing process in a baking yeasts
manufacturing operation
Level
3
Credits
5
Purpose
People credited with this unit standard are able to: prepare the
chemical mixing equipment for operation; operate and monitor
the chemical mixing equipment; shut down the chemical mixing
equipment; record workplace information; and demonstrate
knowledge of the chemical mixing process, in a baking yeasts
manufacturing operation.
Classification
Baking Yeasts Manufacturing > Baking Yeasts Manufacturing
Operations
Available grade
Achieved
Explanatory notes
1
Definitions
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, legislative requirements.
Workplace information may include but is not limited to – standard operating
procedures (SOPs), specifications and production schedules.
Checking equipment status may include but is not limited to – checking that hygiene
and sanitation standards are met, all safety guards are in place and equipment is
operational.
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.
2
Work must be carried out in accordance with organisational requirements, licensing
requirements, legislative requirements, and industrial agreements.
3
Legislation relevant to this unit standard includes but is not limited to – Health and
Safety in Employment Act 1992.
Outcomes and evidence requirements
Outcome 1
Prepare the chemical mixing equipment for operation in a baking yeasts manufacturing
operation.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
25915 version 2
Page 2 of 4
Evidence requirements
1.1
Workplace information is accessed to identify production requirements for
chemical mixing in accordance with organisational requirements.
1.2
Materials and services necessary to the chemical mixing process are confirmed
and available to meet production requirements.
1.3
Chemical mixing equipment is checked in terms of status, condition, and
readiness for use in accordance with organisational requirements.
1.4
The chemical mixing tank and outlet filter are cleaned ready for use in
accordance with organisational requirements.
Outcome 2
Operate and monitor the chemical mixing equipment in a baking yeasts manufacturing
operation.
Range
aspects of the equipment to be monitored may include but are not limited to –
agitation speed, flow rates, quantities, time, temperature;
monitoring may include but is not limited to – the use of production data such as
performance control charts which may be manual or involve the use of a
process control system.
Evidence requirements
2.1
The chemical mixing equipment is started up in accordance with organisational
requirements.
2.2
Control points are monitored to confirm that performance is maintained to meet
production requirements in accordance with organisational requirements.
Range
control points include but are not limited to – setting volume and
temperatures.
2.3
Mixed product meets production requirements.
2.4
Acid, if required, is added in quantities and sequence specified by operating
procedures.
2.5
Out-of-specification product, processes, and equipment performance are
identified, rectified, and/or reported, in accordance with organisational
requirements.
Outcome 3
Shut down the chemical mixing equipment in a baking yeasts manufacturing operation.
Evidence requirements
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3.1
Chemical mixing equipment is shut down in accordance with organisational
requirements.
Range
3.2
25915 version 2
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shut down includes but is not limited to – routine, emergency
situation.
Waste is collected, treated, and disposed of or stored for recycling in
accordance with organisational requirements.
Outcome 4
Record workplace information in a baking yeasts manufacturing operation.
Evidence requirements
4.1
Workplace information is recorded in accordance with organisational
requirements.
Outcome 5
Demonstrate knowledge of the chemical mixing process in a baking yeasts manufacturing
operation.
Evidence requirements
5.1
The purpose of the chemical mixing process is identified in terms of its
relationship to other baking yeasts manufacturing processes.
5.2
Stages during chemical mixing are identified in terms of the changes which
occur.
5.3
Methods of monitoring control points and maintaining control of the chemical
mixing process are identified and described in terms of causes of variation and
any corrective actions required.
Range
5.4
methods may include but are not limited to – recipe and process
specifications, procedures, operating parameters, equipment and
instrumentation components, materials and services, sampling
and testing, product safety, recording requirements.
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.
Replacement information
Primary Industry Training Organisation
SSB Code 101558
This unit standard has been replaced by unit standard
25915
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
25915 version 2
Page 4 of 4
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
15 January 2010
31 December 2017
Review
2
18 June 2015
31 December 2017
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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016