NZQA registered unit standard
28415 version 1
Page 1 of 3
Title
Fill high pressure cylinders designed for use in SCUBA with
Enriched Air Nitrox (EANx)
Level
4
Credits
3
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of the filling of SCUBA dive cylinders with EANx;
and fill high pressure cylinders designed for use in SCUBA with
EANx.
Classification
Diving > Diving - General
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
People seeking credit for this unit standard must hold a current
Environmental Protection Authority Approved Filler certificate
or demonstrate equivalent knowledge and skills.
Explanatory notes
1
Industry technical and safety criteria refers to the candidate performance being
carried out in accordance with the Hazardous Substances (Compressed Gases)
Regulations 2004 and code(s) of practice approved by the Environmental Protection
Authority (EPA) pursuant to sections 78 and 79 of the Hazardous Substances and
New Organisms Act 1996.
2
All filling 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, and the Hazardous Substances (Compressed
Gases) Regulations 2004.
3
Sufficiency for this unit standard requires the blending and testing of a minimum of
two dive cylinders with EANx. One of which must be blended to EAN32 and one of
which must be blended to EAN36.
4
Filling of cylinders may only be carried out at approved EPA accredited EANx filling
stations.
5
Whilst conducting cylinder filling the candidate must be supervised by a current EPA
approved EANx filler who can take over and stop the filling procedure at any time.
6
Definitions
Skills Active Aotearoa Limited
SSB Code 101576
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28415 version 1
Page 2 of 3
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.
Organisational requirements refer to a providers own policies and associated
documents.
SCUBA refers to Self Contained Underwater Breathing Apparatus.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the filling of SCUBA dive cylinders with EANx.
Evidence requirements
1.1
Markings, identification and labelling of cylinders used for EANx SCUBA diving
are described in accordance with industry technical and safety criteria.
Range
1.2
The purpose and principles of the Hazardous Substances (Compressed Gases)
Regulations 2004 in relation to the filling of cylinders with EANx for SCUBA
diving are described in accordance with industry technical and safety criteria.
Range
1.3
gas identification band, oxygen clean certifying label, gas
percentage label, manufacturers name or symbol, specification,
third party inspection agency, date of manufacture, LAB or SP
number, water capacity, tare weight, working pressure, test
pressure, visual inspection tag, hydrostatic test stamp, serial
number, class 2 dangerous goods markings.
primary objective, restrictions on persons able to charge
compressed gas containers with nitrox, approval of nitrox fillers,
enforcement, compliance.
Procedures for blending, testing and storing cylinders with EANx used in
SCUBA are described in accordance with industry technical and safety criteria
and organisational requirements.
Range
blending procedures, maximum permitted oxygen percentage in
nitrox, gas quality for mixed gas diving, changes of gas traffic from
compressed air to nitrox, nitrox cylinder cleaning requirements,
testing mixed gas percentages, cylinder transportation, storage,
care and maintenance, customer and organisational protocols for
dispensing nitrox cylinders.
Outcome 2
Fill high pressure cylinders designed for use in SCUBA with EANx.
Evidence requirements
Skills Active Aotearoa Limited
SSB Code 101576
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
2.1
EANx SCUBA cylinders are blended, analysed and labelled in accordance with
industry technical and safety criteria and organisational requirements.
Range
2.2
28415 version 1
Page 3 of 3
pre filling procedures, identifying complying and non-complying
cylinders, blending procedures, testing procedures for EAN32 and
EAN36 percentages, cylinder labelling.
EANx SCUBA cylinder storage and protocols for dispensing nitrox cylinders to
customers is conducted in accordance with industry technical and safety criteria
and organisational requirements.
Replacement information
This unit standard replaced unit standard 8272.
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
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