NZQA registered unit standard
28458 version 1
Page 1 of 3
Title
Direct fettling for hot dip galvanizing
Level
4
Purpose
Credits
10
This unit standard is intended for those specialising in fettling
for hot dip galvanizing.
People credited with this unit standard are able to inspect metal
components after hot dip galvanizing and direct fettling for hot
dip galvanizing.
Classification
Industrial Coatings > Hot Dip Galvanizing
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Unit standard 28442, Fettle components after hot dip
galvanizing.
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;
ASTM E376-11 Standard Practice for Measuring Coating Thickness by MagneticField or Eddy-Current (Electromagnetic) Examination Methods, available at
http://www.astm.org/;
Manufacturer’s instructions.
2
Health and safety procedures must be followed in accordance with workplace and
legislative requirements for all tasks leading to assessment of 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
28458 version 1
Page 2 of 3
Outcomes and evidence requirements
Outcome 1
Inspect metal components after hot dip galvanizing
Range
evidence is required of inspecting at least three types of component, of which a
minimum of one has been double-end dipped.
Evidence requirements
1.1
Hot dip galvanized components are inspected for coating defects in accordance
with company procedures.
defects – lack of adherence, roughness.
Range
1.2
Inspection identifies defects outside the control of the galvanizer.
defects – design, fabrication, steel composition.
Range
1.3
Non-compliant components are identified and remedial work actioned in
accordance with AS/NZS 4680 and company procedures.
Range
repaired or re-dipped, rejection
Outcome 2
Direct fettling for hot dip galvanizing.
Range
evidence of direction of removal of dags, zinc runs, ash or dross inclusions.
2.1
Fettling is directed to ensure correct tool selection in accordance with company
procedures.
2.2
Fettling is directed to ensure zinc coating integrity is maintained 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
N/A
Consent and Moderation Requirements (CMR) reference
0114
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28458 version 1
Page 3 of 3
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