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Control centrifugation operations in sugar refining

Level / 3
Credits / 7

PurposeThis unit standard is for people who are currently working in jobs which involve controlling the centrifugation process in a sugar refinery.

People credited with this unit standard are able to: use safe working practices; demonstrate an understanding of centrifugation in sugar refining; evaluate centrifugation operations; and identify and control centrifugation operation problems.

Subfield / Food and Related Products Processing
Domain / Food and Related Product Production
Status / Registered
Status date / 27 February 2008
Date version published / 27 February 2008
Planned review date / 31 December 2013
Entry information / Open.
Accreditation / Evaluation of documentation and visit by NZQA and industry.
Standard setting body (SSB) / Competenz
Accreditation and Moderation Action Plan (AMAP) reference / 0111

This AMAP can be accessed at

Special notes

1Legislation relevant to this unit standard may include but is not limited to: Health and Safety in Employment Act 1992; Health and Safety in Employment Regulations 1995; Food Act 1981; Food Hygiene Regulations 1974; Food (Safety) Regulations 2002; and Resource Management Act 1991.

2Definitions

Organisational procedures refer to documents that include: worksite rules, codes, and practices; equipment operating instructions; production specifications; documented quality management systems; and health and safety requirements.

PPE refers to personal protective equipment and may include but is not limited to: protective clothing, gloves, safety glasses/headwear/footwear, hearing protection, safety devices.

3Competenz acknowledges the assistance provided by the South African Qualifications Authority in permitting unit standard 114283 Control centrifugation operations to be used as the basis for this unit standard.

Elements and performance criteria

Element 1

Use safe working practices.

Performance criteria

1.1PPE is used in accordance with organisational procedures.

1.2Work environment is kept clean and free from hazards in accordance with organisational procedures.

Rangehazards to – personnel, product, plant.

1.3Documentation is referred to and/or completed in accordance with organisational procedures.

Element 2

Demonstrate an understanding of centrifugation in sugar refining.

Performance criteria

2.1The purpose of centrifugation in sugar refining is explained in accordance with organisational procedures.

Rangeincludes but is not limited to – affination, refined, and boil-out centrifugation operation.

2.2The impact of centrifugation on sugar refinery operations is explained in accordance with organisational procedures.

Rangeincludes but is not limited to – refinery throughput, efficiency, refined pan yield, boil-out liquor quality, boil-out liquor volume, carbonatation, filtration processes, and specialty product yields.

Element 3

Evaluate centrifugation operations in sugar refining.

Performance criteria

3.1The performance of the centrifugals is monitored in accordance with organisational procedures.

Rangeincludes but is not limited to – fugal basket thickness, effective purging, station throughput, minimising rework and crystal quality.

3.2The performance of the centrifugals is assessed in accordance with organisational procedures.

Rangeincludes but is not limited to – sugar moisture, crystal colour, boil-out liquor colour, boil-out liquor reducing sugar content, melter liquor colour, melter reducing sugar content, pan yields, specialty product quality, and molasses purity.

Element 4

Identify and control centrifugation operation problems.

Performance criteria

4.1Abnormal deviations are identified and controlled through liaison with relevant parties in accordance with organisational procedures.

Rangeincludes but is not limited to – maintenance personnel, shift team leaders, and other operators.

4.2Abnormal deviations are reported to the relevant parties in accordance with organisational procedures.

Rangeincludes but is not limited to – mechanical and electrical faults of the fugals and associated equipment, product quality, and refinery throughput issues.

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 if you wish to suggest changes to the content of this unit standard.

 New Zealand Qualifications Authority 2018