oSIST prEN ISO 25325:2025

SLOVENSKI STANDARD
01-december-2025
Zahteve za usposabljanje potapljačev v okviru državljanske znanosti (ISO/DIS
25325:2025)
Requirements for the training of citizen science divers (ISO/DIS 25325:2025)
Anforderungen an die Ausbildung von Citizen Science Tauchenden (ISO/DIS
25325:2025)
Exigences relatives à la formation des plongeurs scientifiques citoyens (ISO/DIS
25325:2025)
Ta slovenski standard je istoveten z: prEN ISO 25325
ICS:
03.100.30 Vodenje ljudi Management of human
resources
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 25325
ISO/TC 228
Requirements for the training of
Secretariat: UNE
citizen science divers
Voting begins on:
ICS: 03.100.30
2025-10-16
Voting terminates on:
2026-01-08
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
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Reference number
ISO/DIS 25325:2025(en)
DRAFT
ISO/DIS 25325:2025(en)
International
Standard
ISO/DIS 25325
ISO/TC 228
Requirements for the training of
Secretariat: UNE
citizen science divers
Voting begins on:
ICS: 03.100.30
Voting terminates on:
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
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BE CONSIDERED IN THE LIGHT OF THEIR
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Published in Switzerland Reference number
ISO/DIS 25325:2025(en)
ii
ISO/DIS 25325:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Competencies . 2
5 Prerequisites for training . 2
5.1 General .2
5.2 Minors and vulnerable persons .2
5.3 Health requirements .2
5.4 Diving competencies .2
6 Introductory information . 2
7 Theoretical knowledge . 3
7.1 Scientific methodologies and protocols .3
7.1.1 General .3
7.1.2 Generic methods .3
7.1.3 Survey techniques .3
7.2 Diving environments and conditions .4
7.3 Navigation and orientation during scientific projects .4
7.4 Physiological, psychological, behavioural studies .4
8 Practical scientific diving skills . 4
9 Requirements for the provision of training . 5
9.1 Instructors .5
9.2 Risk assessment .5
9.3 Emergency equipment and procedures.6
9.3.1 Emergency equipment .6
9.3.2 Emergency procedures .6
9.4 Practical training parameters .6
10 Qualification criteria . . 7
10.1 Knowledge .7
10.2 Skills . .7
Bibliography . 8

iii
ISO/DIS 25325:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
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For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 228, Tourism and related services, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 329,
Tourism and related services, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO/DIS 25325:2025(en)
Introduction
This document is aimed primarily at recreational divers wishing to become citizen science divers and
sets minimum requirements for the training of these citizen science divers. It will be beneficial both to
organizations involved in training citizen science divers and the scientific diving community as a whole.
This document is considered the minimum competency standard for recognition as a citizen science diver.
It is intended to provide guidance regarding agreed-upon minimum training requirements, thereby easing
barriers to cross-programme co-operation and reciprocity through common acknowledgment of the basic
skill set for citizen science divers. It provides guidance to scientists wishing to involve such divers in
scientific projects of the capabilities and limitations of individuals trained according to this standard.
Divers trained according to this document may take part in projects under the supervision of a project
leader, or independently while following proper safety and data collection protocols.

v
DRAFT International Standard ISO/DIS 25325:2025(en)
Requirements for the training of citizen science divers
1 Scope
This document specifies minimum requirements for the training of citizen science divers to assist in the
conduct of scientific diving projects.
This document specifies evaluation criteria for these competencies.
This document specifies the requirements under which training is provided, in addition to the general
requirements for recreational diving service provision in accordance with ISO 24803.
2 Normative references
The following documents are referred to in the text in such
...