NZQA Expiring unit standard
21170 version 3
Page 1 of 3
Title
Demonstrate knowledge of the fluxing process and flux metal
components at a hot dip galvanizing facility
Level
3
Credits
3
Purpose
People credited with this unit standard are able to demonstrate
knowledge of the fluxing process and flux metal components at
a hot dip galvanizing facility.
Classification
Hot Dip Galvanizing > Hot Dip Galvanizing Operations
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Prerequisites: Unit 3800, Operate a radio remote or pendant
controlled overhead crane and lift and place regular loads; Unit
25130, Describe hazards, safety and emergency procedures,
and exhibit safe working practices at a hot dip galvanizing
facility; and Unit 25133, Demonstrate knowledge of venting and
draining for hot dip galvanizing; or demonstrate equivalent
knowledge and skills.
Explanatory notes
This unit standard is
expiring
1
The current version of the following documents must be complied with:
Health and Safety in Employment Act 1992;
Health and Safety in Employment Regulations 1995;
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, telephone 09 589 5400, fax 09 579 8907, website
http://www.galvanizing.org.nz.
2
Definitions
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.
Double-end dipping refers to galvanizing articles that are longer than the bath by
dipping one end of the component at a time.
Surging refers to the motion of a component within the solution causing a wave.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
21170 version 3
Page 2 of 3
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the fluxing process at a hot dip galvanizing facility.
Evidence requirements
1.1
The purpose of the fluxing process, chemicals used, and fluxing temperature
are described in accordance with After-Fabrication Hot Dip Galvanizing.
1.2
The length of time required for the fluxing process is described in relation to
different component thicknesses.
1.3
Fluxing process is described in terms of double-end dipping.
1.4
The process of checking fabricated components before and after fluxing is
explained in terms of venting and drainage requirements.
Range
includes but is not limited to – sealed hollow sections, overlapping
sealed sections, welded plates, internally vented and drained.
Outcome 2
Flux metal components at a hot dip galvanizing facility.
Evidence requirements
2.1
2.2
2.3
Hazards of the fluxing process are identified and controlled in accordance with
legislative requirements and company procedures.
This unit standard is
Hazards of components to be fluxed are identified and controlled in accordance
with company procedures.
expiring
Range
hazards include but are not limited to – crane, chemical splash,
load instability, obstructions, personnel, surging.
Range
hazards include but are not limited to – venting, drainage, fixing,
balance.
Components and jig are lifted and moved to flux bath, immersed, and supported
in fluxing solution in accordance with company procedures.
Range
2.4
components – solid, plate, hollow, fabricated.
Jig and components are removed from fluxing solution and visually inspected
for quality of fluxing, drainage, and venting in accordance with company
procedures.
Range
may include but is not limited to – hole size, paint, anti–spatter,
grease, mill scale, rust.
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
21170 version 3
Page 3 of 3
2.5
Any drainage, venting, and fluxing faults are remedied in accordance with
company procedures.
2.6
Components are drained and dried before transferring to the next process in
accordance with company procedures.
Replacement information
This unit standard has been replaced by unit standard
28440.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
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
31 December 2016
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.
This unit standard is
expiring
Providers and Industry Training Organisations, which have been granted consent and
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
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