NZQA registered unit standard
28454 version 1
Page 1 of 3
Title
Plan and monitor quality of centrifuging operations for hot dip
galvanizing
Level
4
Purpose
Credits
10
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.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28454 version 1
Page 2 of 3
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.
planning includes – quantity in basket, immersion time, stirring of
articles in zinc.
Range
1.2
Centrifuging is planned for small components in accordance with company
procedures.
planning includes – transferring of articles, draining baskets, time
in centrifuge, quenching, tipping table, transfer to container; and
may include rumbling.
Range
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 2019
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
16 April 2015
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
N/A
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28454 version 1
Page 3 of 3
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)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016