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Process wool grease

Level / 3
Credits / 3

Purpose This unit standard is for people working in the wool scouring industry. People credited with this unit standard are able to prepare and use a wool grease recovery system to recover wool grease, identify problems in the operation of the equipment, produce product to the required quality, carry out minor maintenance and maintain records as required.

Subfield / Textiles Manufacture
Domain / Wool Scouring
Status / Registered
Status date / 25 January 1995
Date version published / 25 June 2007
Planned review date / 31 December 2010
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 / 0030

This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.

Special notes

All activities will be carried out in accordance with the Health and Safety in Employment Act 1992.

Elements and performance criteria

Element 1

Prepare drums and grease storage tank.

Performance criteria

1.1 Drums and tanks are prepared for use according to workplace practice.

Range cleaned internally to remove all contaminants and impurities, labels and identification from previous use are removed, damaged drums removed from stock.

Element 2

Separate grease by thermal cracking.

Performance criteria

2.1 Process conditions are monitored and maintained according to work instructions and workplace practice.

Range temperature, time.

2.2 Grease is run-off to separator and/or bulk storage tank or drums according to workplace practice and work instructions.

Element 3

Process grease in a separator.

Performance criteria

3.1 Separator is assembled and checked according to machinery manufacturer’s instructions.

Range cleanliness of parts, oil level, vibration free, no liquor leaks.

3.2 Flows and pumps are started according to operating procedures.

3.3 Equipment is monitored and adjustments made to ensure plant is operating to workplace requirements.

Range feed, liquor temperatures, pump operation.

3.4 Grease flow to bulk storage tank or drum is monitored and feed rate to the separator is adjusted to maintain grease quality.

Element 4

Take samples, record production, and mark drums.

Performance criteria

4.1 Production and related information recorded according to plant practice.

4.2 Drums are marked and weighed according to work instruction.

4.3 Samples of grease are taken and graded to industry specification.

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

Ó New Zealand Qualifications Authority 2013