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Title / Plan and monitor quality of centrifuging operations for hot dip galvanizing
Level / 4 / Credits / 10
Purpose / This unit standard is intended for those specialising in centrifuging for hot dip galvanizing.
People credited with this unit standard are able to plan the application of zinc coating to small metal components using the hot dip galvanizing and the centrifuging processes, and monitor quality of completed galvanized and centrifuged components.
Classification / Industrial Coatings > Hot Dip Galvanizing
Available grade / Achieved
Entry information
Recommended skills and knowledge / Unit standard 28451, Direct hot dipping for hot dip galvanizing; and unit standard 28462, Use a centrifuge to hot dip galvanize small metal components.
Explanatory notes
1 The current version of the following documents must be complied with:
AS/NZS 4680:2006 Hot-dip galvanized (zinc) coatings on fabricated ferrous articles, available at http://www.standards.co.nz;
After-Fabrication Hot Dip Galvanizing: A practical reference for designers, specifiers, engineers, consultants, manufacturers, and users, Galvanizing Association of New Zealand, available at http://www.galvanizing.org.nz;
manufacturer’s instructions.
2 Health and safety procedures must be followed in accordance with workplace and legislative requirements for all tasks leading to assessment against this standard. Personal protective equipment (PPE) must be used throughout operations in accordance with company procedures and manufacturer’s instructions.
3 Definition
Company procedures refer to all documented policies and procedures of the candidate’s employer at the time of training including, but not limited to, those relating to health, safety, environment, quality, and operations.
Outcomes and evidence requirements
Outcome 1
Plan the application of zinc coating to small metal components using the hot dip galvanizing and the centrifuging processes.
Range components – threaded, non-threaded, hollow section, castings, chain;
Evidence requirements
1.1 Dipping of small components in preparation for centrifuging is planned in accordance with company procedures.
Range planning includes – quantity in basket, immersion time, stirring of articles in zinc.
1.2 Centrifuging is planned for small components in accordance with company procedures.
Range planning includes – transferring of articles, draining baskets, time in centrifuge, quenching, tipping table, transfer to container; and may include rumbling.
Outcome 2
Monitor quality of completed galvanized and centrifuged components.
Evidence requirements
2.1 Centrifuged components have a smooth, uniform, continuous coating and, where relevant, clean threads.
2.2 Consistency of the galvanized components is monitored in accordance with company procedures.
2.3 Where applicable, records of completed galvanized and centrifuged component jobs are kept in accordance with company procedures.
Planned review date / 31 December 2019Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for Assessment /Registration / 1 / 16 April 2015 / N/A
Consent and Moderation Requirements (CMR) reference / 0114
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 NZ Motor Industry Training Organisation (Incorporated) (MITO) if you wish to suggest changes to the content of this unit standard.
NZ Motor Industry Training Organisation (Incorporated) (MITO)SSB Code 101542 / Ó New Zealand Qualifications Authority 2015