NZQA registered unit standard
28414 version 1
Page 1 of 4
Title
Complete a dive in open water using Enriched Air Nitrox (EANx)
Level
3
Credits
3
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of EANx diving; perform nitrox cylinder content
analysis; and plan and perform EANx dives in open water.
Classification
Diving > Diving - General
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Hold a current fit to dive medical clearance signed by a
physician.
People seeking credit for this unit standard must hold either the
PADI or SSI Open Water certification, or Unit 28392, SCUBA
dive in open water to maximum depth of 18 metres, or
demonstrate equivalent knowledge and skills.
Explanatory notes
1
Industry technical and safety criteria refer to dive instruction, supervision and
performance being carried out in accordance with the standards, procedures and
training materials of the respective dive training agency. The agency must meet or
exceed the World Recreational Scuba Training Council training standards.
2
All dive operations must comply with the requirements of the Health and Safety in
Employment Act 1992, the Health and Safety in Employment Regulations 1995, the
Accident Compensation Act 2001, AS/NZS 2299.3:2003 Occupational diving
operations – Recreational industry diving and snorkelling operations and the
Guidelines for Occupational Diving 2004.
3
Sufficiency for this unit standard requires the analysis of the content of a filled
cylinder containing EAN32 or EAN36, and a minimum of two open water dives.
4
Definitions
Dive plan refers to the procedures by which the accredited dive provider’s diving
operations are implemented for all dives required to meet this standard.
Enriched Air Nitrox (EANx) refers to either of the two gas mixtures used for
recreational EANx SCUBA diving which have an oxygen concentration greater than
the 21% present in normal atmospheric air – commonly referred to as EAN32 and
EAN36.
Skills Active Aotearoa Limited
SSB Code 101576
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28414 version 1
Page 2 of 4
Open water is any natural body of water realistic of local diving conditions in terms of
water movement, temperature, visibility, depth and aquatic life.
PADI refers to the Professional Association of Diving Instructors.
SCUBA refers to Self Contained Underwater Breathing Apparatus.
SSI refers to Scuba Schools International.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of EANx diving.
Evidence requirements
1.1
The benefits of EANx diving and breathing less nitrogen are described in
accordance with industry technical and safety criteria.
Range
1.2
The disadvantages or limitations of EANx diving and breathing more oxygen are
described in accordance with industry technical and safety criteria.
Range
1.3
additional training, special equipment, cost and convenience of
cylinder fills, additional risk of oxygen toxicity.
EANx diving equipment and protocols are described in accordance with industry
technical and safety criteria.
Range
1.4
increased bottom time, improved safety.
using standard equipment, regulators, gauges, valves and
cylinders used for nitrox, cylinder markings, oxygen analysers,
protocols for dispensing nitrox, the need to analyse cylinder
content.
Planning in relation to EANx diving is described in accordance with industry
technical and safety criteria.
Range
managing exposure to nitrogen using air based dive tables,
managing exposure to nitrogen using a nitrox programmable dive
computer, managing exposure to oxygen.
Outcome 2
Perform nitrox cylinder content analysis.
Evidence requirements
2.1
Nitrox cylinder content analysis is performed in accordance with industry
technical and safety criteria.
Outcome 3
Plan and perform EANx dives in open water.
Skills Active Aotearoa Limited
SSB Code 101576
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28414 version 1
Page 3 of 4
Evidence requirements
3.1
Dive planning and preparation is conducted and parameters established for
EANx dives in accordance with industry technical and safety criteria.
Range
3.2
analysing the content of nitrox cylinder, dive objective, assessment
of dive site and environmental conditions, hazard identification,
emergency procedures including lost buddy, maximum depth and
bottom time, returning air pressure, entry and exit procedures,
descent and ascent procedures, direction, communication, safety
and specialist equipment setup, personal dive equipment
selection, assembly and checks, buddy team selection and
checks, roles and responsibilities including that of topside
personnel.
EANx dives are performed in accordance with the dive plan and industry
technical and safety criteria.
Replacement information
This unit standard replaced unit standard 8271.
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
20 November 2014
N/A
Consent and Moderation Requirements (CMR) reference
0099
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
Skills Active Aotearoa Limited
SSB Code 101576
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28414 version 1
Page 4 of 4
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 Skills Active Aotearoa Limited info@skillsactive.org.nz if you wish to
suggest changes to the content of this unit standard.
Skills Active Aotearoa Limited
SSB Code 101576
 New Zealand Qualifications Authority 2016