NZQA registered unit standard / 28161 version 1
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Title / Demonstrate knowledge of unfired pressure equipment used in the energy and chemical industry
Level / 3 / Credits / 5
Purpose / This theory-based unit standard is for entry-level people working as boiler and energy and chemical process operators.
People credited with this unit standard are able to demonstrate knowledge of: unfired pressure equipment used in the energy and chemical industry; and unfired pressure equipment used in an energy and chemical plant.
Classification / Energy and Chemical Plant > Operation of Energy and Chemical Plant
Available grade / Achieved

Explanatory notes

1Definitions

Energy and chemical plant may be in – petrochemical, agri-nutrient, power generation, dairy processing, meat processing, and wood fibre manufacturing, or other plants that operate with a combination of high temperatures, pressures, steam and/or chemicals in gas, liquid or solid form.

Plant – the operational unit, equipment and/or workplace at which the person is working.

Unfired pressure equipment – equipment that is operated under pressure but is not directly fired.

2Legislation relevant to this unit standard includes but is not limited to – Hazardous Substances and New Organisms Act 1996, Health and Safety in Employment Act 1992, Resource Management Act 1991.

Outcomes and evidence requirements

Outcome 1

Demonstrate knowledge of unfired pressure equipment used in the energy and chemical industry.

Evidence requirements

1.1Types of unfired pressure equipment are identified and described in terms of their use.

Rangeevidence is required of four types.

1.2The use of carbon steel and alloy steel in the construction of unfired pressure vessels is explained in terms of its purpose.

1.3Internal features of unfired pressure vessels are described in terms of their purpose.

Rangeinternal features include but are not limited to – impingement plates, deflectors, stand pipes, boots, trays, packing, demister pads, weirs, distributors.

1.4External features of unfired pressure vessels are described in terms of their purpose.

Rangeexternal features include but are not limited to – gauge glass, safety valves, compensation plates, instrumentation, vents, drains.

Outcome 2

Demonstrate knowledge ofunfired pressure equipment used in an energy and chemical plant.

Evidence requirements

2.1Unfired pressure equipment used at a plant are identified and described in terms of their types.

Rangeevidence is required of three types of equipment.

2.2The different types of unfired pressure equipment are identified and described in terms of the plant identification coding system and their purpose.

2.3The components of the unfired pressure equipment are described in term of the process flows and normal operating parameters of the equipment.

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 / 24 October 2014 / N/A
Consent and Moderation Requirements (CMR) reference / 0079

This CMR can be accessed at

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 Primary Industry Training Organisation if you wish to suggest changes to the content of this unit standard.

Primary Industry Training Organisation
SSB Code 101558 /  New Zealand Qualifications Authority 2018