NZQA Expiring unit standard / 28449 version 2
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Title / Direct fluxing for hot dip galvanizing
Level / 4 / Credits / 10
Purpose / This unit standard is intended for those specialising in pre-treatment operations for hot dip galvanizing.
People credited with this unit standard are able to direct, and monitor quality of fluxing for hot dip galvanizing.
Classification / Industrial Coatings > Hot Dip Galvanizing
Available grade / Achieved

Guidance Information

1The current version of the following documents must be complied with:

AS/NZS 4680:2006 Hot-dip galvanized (zinc) coatings on fabricated ferrous articles,

After-Fabrication Hot Dip Galvanizing: A practical reference for designers, specifiers, engineers, consultants, manufacturers, and users, Galvanizing Association of New Zealand, available at

manufacturer’s instructions.

2Health 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

3Definition

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 performance criteria

Outcome 1

Direct fluxing for hot dip galvanizing.

Performance criteria

1.1Fluxing requirements are determined in accordance with company procedures.

Rangecomponents – solid, plate, hollow, fabricated.

1.2Surface condition of steel is checked for suitability for fluxing.

Rangeincludes but is not limited to – paint, millscale, rust;

may include – antispatter.

1.3Lifting, moving, immersion and supporting of components in fluxing bath is directed in accordance with company procedures.

Rangecomponents – solid, plate, hollow, fabricated.

1.4Removal of jig and components from fluxing solution is directed in accordance with company procedures.

1.5Any fluxing faults are identified and remedies determined and actioned in accordance with company procedures.

Outcome 2

Monitor quality of fluxing for hot dip galvanizing.

Performance criteria

2.1Consistency of the fluxing processes is monitored in accordance with company procedures.

2.2Where applicable, records of fluxing are kept in accordance with company procedures.

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 / 16 April 2015 / 31 December 2019
Review / 2 / 13 December 2018 / 31 December 2019
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 2019