NZQA Expiring unit standard
Title
21169 version 3
Page 1 of 3
Demonstrate knowledge of the rinsing process and rinse metal components at a hot dip galvanizing facility
3 Credits 1 Level
Purpose People credited with this unit standard are able to: demonstrate knowledge of the rinsing process at a hot dip galvanizing facility, and rinse metal components after degreasing and/or pickling at a hot dip galvanizing facility.
Classification
Available grade
Entry information
Hot Dip Galvanizing > Hot Dip Galvanizing Operations
Achieved
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.
This unit standard is
1 The current version of the following documents must be complied with: expiring
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;
Surging refers to the motion of a component within the solution causing a wave.

New Zealand Qualifications Authority 2020 NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
This unit standard is expiring
New Zealand Qualifications Aut

NZQA Expiring unit standard 21169 version 3
Page 2 of 3
Outcome 1
Demonstrate knowledge of the rinsing process at a hot dip galvanizing facility.
Evidence requirements
Rinsing process is described in terms of purpose. 1.1
1.2 The process of checking fabricated components before and after rinsing 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
Rinse metal components at a hot dip galvanizing facility.
Range rinsing after degreasing and/or pickling.
Evidence requirements
2.1 Hazards of the rinsing process are identified and controlled in accordance with legislative requirements and company procedures.
Range hazards include but are not limited to – crane, chemical splash, load instability, obstructions, personal injury.
2.2
2.3
Hazards of components to be rinsed are identified and controlled in accordance
This unit standard is
Range hazards include but are not limited to – venting, drainage, fixing, expiring
Jig and components are lifted and moved to rinsing bath, immersed, and supported in rinsing solution in accordance with company procedures.
Range components – solid, plate, hollow, fabricated.
2.4 Jig and components are removed from rinsing solution and visually inspected for quality of drainage and venting in accordance with company procedures.
Range may include but is not limited to – mill scale, rust.
2.5 Any drainage and venting faults are remedied in accordance with company procedures.
2.6 Components are completely drained before transferring to the next process in accordance with company procedures.

New Zealand Qualifications Authority 2020 NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542
This unit standard is expiring
New Zealand Qualifications Aut

NZQA Expiring unit standard
Replacement information
21169 version 3
Page 3 of 3
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
Consent and Moderation Requirements (CMR) reference
31 December 2016
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 This unit standard is expiring
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.
This unit standard is expiring
NZ Motor Industry Training Organisation
(Incorporated) (MITO)
SSB Code 101542

New Zealand Qualifications Authority 2020 New Zealand Qualifications Aut