NZQA registered unit standard
21176 version 3
Page 1 of 3
Title
Describe the process of measuring zinc coating and measure
thickness of hot dip galvanized zinc coatings
Level
3
Credits
2
Purpose
People credited with this unit standard are able to describe the
process of measuring hot dip galvanized zinc coating and
measure hot dip galvanized zinc coating thickness.
Classification
Industrial Coatings > Hot Dip Galvanizing
Available grade
Achieved
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, website 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
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
Describe the process of measuring hot dip galvanized zinc coating.
Evidence requirements
1.1
The reasons multiple readings are required, and methods of taking readings,
are described in accordance with After-Fabrication Hot Dip Galvanizing, ASTM
E376-06 and/or manufacturer’s instructions.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
21176 version 3
Page 2 of 3
1.2
The effects of surface texture and profile are described in relation to coating
thickness readings.
1.3
The accuracy and calibration requirements for non-destructive testing methods
are described in accordance with manufacturer’s instructions.
Outcome 2
Measure hot dip galvanized zinc coating thickness.
Range
plate, fabricated item, small component, hollow component, circular surface.
Evidence requirements
2.1
Readings are taken in accordance with manufacturer’s instructions.
2.2
Average of readings is calculated and recorded in accordance with AS/NZS
4680 or ASTM E376-11.
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
21 October 2004
31 December 2016
Review
2
23 January 2009
31 December 2016
Review
3
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.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
21176 version 3
Page 3 of 3
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