ISO/PAS 16617

Clean cookstoves and clean cooking solutions — Guidance for evaluation

The document will provide guidance on evaluating clean cookstoves. The goal is to ensure a cookstove assessment protocol is fit for a particular purpose, recognizing the stove itself is just one part of complex, interacting systems. The document will neither specify test methods nor recommend pre-determined procedures

Fourneaux et foyers de cuisson propres — Guide d'évaluation

General Information

• Status: Not Published
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: ISO/TC 285 - Clean cookstoves and clean cooking solutions
• Drafting Committee: ISO/TC 285 - Clean cookstoves and clean cooking solutions
• Current Stage: 6000 - International Standard under publication
• Completion Date: 05-Jul-2024

Standards Content (Sample)

FINAL DRAFT
Publicly
Available
Specification
ISO/DPAS 16617
ISO/TC 285
Clean cookstoves and clean cooking
Secretariat: KEBS
solutions — Guidance for evaluation
Voting begins on:
2024-05-09
Voting terminates on:
2024-07-04
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/DPAS 16617:2024(en) © ISO 2024

FINAL DRAFT
ISO/DPAS 16617:2024(en)
Publicly
Available
Specification
ISO/DPAS 16617
ISO/TC 285
Clean cookstoves and clean cooking
Secretariat: KEBS
solutions — Guidance for evaluation
Voting begins on:
Voting terminates on:
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DPAS 16617:2024(en) © ISO 2024

ii
ISO/DPAS 16617:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Multiple aspects of cooking systems . 3
5 System identification . 4
5.1 System identification overview .4
5.2 System of action . .5
5.3 System of desired impact .5
5.4 Implications of system choice .5
6 Determining fitness for purpose . 6
6.1 Validity and relevance .6
6.2 Situational appropriateness or contextuality .6
6.3 Transparency and traceability .6
7 Quantifying variability . 7
7.1 General .7
7.2 Reporting experimental error and uncertainty .7
7.3 Variability due to critical inputs .8
7.4 Combining sources of variability .8
8 Reporting single-outcome evaluation . . 8
9 Reporting multi-outcome evaluation . 9
Bibliography .11

iii
ISO/DPAS 16617:2024(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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
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 285, Clean cookstoves and clean cooking
solutions.
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/DPAS 16617:2024(en)
Introduction
The significance of standardization in the cookstove sector is well established. In addition to the documents
published by ISO, there are many other “evaluation instruments” in existence throughout the world, covering
different aspects of clean cookstoves and clean cooking solutions. These various evaluation instruments
(standards, protocols, test methods, etc.) serve a multitude of purposes by examining a range of different
metrics.
Determining the pros and cons of each evaluation instrument can be challenging. To address this gap, this
document provides guidelines to assist in assessing and identifying which evaluation instrument is most
appropriate to address the specific needs of a particular situation. This guidance is intended to better inform
stakeholders in order to ensure that the end product is fit for purpose in a holistic sense.

v
FINAL DRAFT Publicly Available Specification ISO/DPAS 16617:2024(en)
Clean cookstoves and clean cooking solutions — Guidance for
evaluation
1 Scope
This document provides guidance for examining evaluation instruments that assess cooking systems. The
goal is to ensure that a cooking system evaluation instrument achieves its objectives and is fit for a particular
purpose. Doing so means recognizing that the stove is one part of a series of complex and interacting
systems, many of which are variable.
The document includes procedures to ensure that:
— an evaluation instrument captures the necessary input measures at an appropriate level of detail and
quality;
— outputs from the evaluation instrument are accurate, repeatable, reproducible, and appropriate for
assessing the stated outcome.
The document also provides guidance to interpret the outputs of an evaluation instrument when reporting.
The document does not specify test methods nor recommend pre-determined procedures or benchmarks of
performance (also known as tiers).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO/TR 21276, Clean cookstoves and clean cooking solutions — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 21276 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
cooking system
combination of cookstove (3.2), fuel, cooking equipment, cooking environment (including ventilation (3.16))
and cooking practice
[SOURCE: ISO/TR 21276:2018, 3.5.4]
3.2
cookstove
appliance primarily employed for the cooking of food, but which can also be employed for space or water
heating, or other purposes
[SOURCE: ISO/TR 21276:2018, 3.1.7]

ISO/DPAS 16617:2024(en)
3.3
correlative relationship
relationship between a proxy metric (3.10) and the desired outcome (3.5), both of which are relevant to the
system of desired impact (3.15)
3.4
critical input
aspect of a system (3.13) that affects the value of a measured performance metric (3.9), and that can vary
throughout a system of desired impact (3.15)
3.5
desired outcome
outcome that the evaluator wishes to achieve in the system of desired impact (3.15)
3.6
evaluation instrument
specified methodology of measuring or collecting data using a documented procedure
Note 1 to entry: The term evaluation instrument is akin to “test method”, “protocol”, or “evaluation tool”.
Note 2 to entry: An evaluation instrument can consist of a series of different tests or data collection steps.
Note 3 to entry: An evaluation instrument can result in either quantitative or qualitative data, such as representing
physical properties or social measures.
3.7
fitness for purpose
assessment of an evaluation instrument (3.6) ascertaining it is capable of sufficiently meeting the objectives
for which it is to be applied
3.8
mechanistic relationship
predictable connection between the performance metric (3.9) (a measure in the system of action (3.14)) and
the proxy metric (3.10) (a measure in the system of desired impact (3.15))
3.9
performance metric
measurable quantity characterizing the behaviour of the system of action (3.14) with regard to some aspect
of a cooking system (3.1)
3.10
proxy metric
measurable quantity in the system of desired impact (3.15), which is related to the desired outcome (3.5)
3.11
reporting framework
approach to document and disseminate findings from an evaluation instrument (3.6)
3.12
safety
ability of a cookstove (3.2) to be operated at an acceptable level of risk of harm
[SOURCE: ISO/TR 21276:2018, 3.3.22]
3.13
system
collection of elements that can be grouped with
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1 ISO PAS /DPAS 16617 (DRAFT)
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3 Secretariat: KEBS
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4 Date: 2023-12-082024-04-24
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5 Clean Cookstovescookstoves and Clean Cooking Solutions — .
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6 clean cooking solutions — Guidance for Evaluationevaluation
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10 Warning for WDs and CDs
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11 This document is not an ISO International Standard. It is distributed for review and comment. It is subject to .
12 change without notice and may not be referred to as an International Standard.
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13 Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
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© ISO PAS 16617 (DRAFT) – All rights reserved

ISO #####-#:####(X)
2 © ISO #### – All rights reserved

ISO/DPAS 16617:(en)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
Formatted: Indent: Left: 0 pt, Right: 0 pt, Adjust
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
space between Latin and Asian text, Adjust space
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
between Asian text and numbers
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Formatted: French (Switzerland)
EmailE-mail: [e-mail]
Formatted: French (Switzerland)
Website: www.iso.orgwww.iso.org
Formatted: French (Switzerland)
Published in Switzerland
Formatted: English (United Kingdom)
Formatted: English (United Kingdom)
iii
ISO/DPAS 16617:(en)
Contents
Foreword . Error! Bookmark not defined.
Introduction . Error! Bookmark not defined.
1 Scope . Error! Bookmark not defined.
2 Normative references . Error! Bookmark not defined.
3 Terms and definitions . Error! Bookmark not defined.
4 Multiple aspects of cooking systems . Error! Bookmark not defined.
5 System identification . Error! Bookmark not defined.
5.1 System identification overview . Error! Bookmark not defined.
5.2 System of action . Error! Bookmark not defined.
5.3 System of desired impact . Error! Bookmark not defined.
5.4 Implications of system choice . Error! Bookmark not defined.
6 Determining fitness for purpose . Error! Bookmark not defined.
6.1 Validity and relevance . Error! Bookmark not defined.
6.2 Situational appropriateness or contextuality . Error! Bookmark not defined.
6.3 Transparency and traceability . Error! Bookmark not defined.
7 Quantifying variability . Error! Bookmark not defined.
7.1 General to variability . Error! Bookmark not defined.
7.2 Reporting experimental error and uncertainty . Error! Bookmark not defined.
7.3 Variability due to critical inputs . Error! Bookmark not defined.
7.4 Combining sources of variability . Error! Bookmark not defined.
8 Reporting single-outcome evaluation . Error! Bookmark not defined.
9 Reporting multi-outcome evaluation . Error! Bookmark not defined.
Bibliography . Error! Bookmark not defined.

Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Multiple aspects of cooking systems . 3
5 System identification . 3
5.1 System identification overview . 3
5.2 System of action . 4
5.3 System of desired impact . 4
5.4 Implications of system choice . 5
6 Determining Fitness for Purpose . 5
6.1 Validity and relevance . 5
6.2 Situational appropriateness or contextuality . 5
6.3 Transparency and traceability . 6
7 Quantifying variability . 7
7.1 Introduction to variability . 7
7.2 Reporting experimental error and uncertainty . 7
iv
ISO/DPAS 16617:(en)
7.3 Variability due to critical inputs . 7
7.4 Combining sources of variability . 8
8 Reporting Single-Outcome Evaluation . 8
9 Reporting Multi-Outcome Evaluation . 9
Bibliography . 10

v
ISO/DPAS 16617:(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 documentsdocument 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 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents.www.iso.org/patents. ISO shall not be held responsible for identifying any or all such
patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
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.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 285, Clean cookstoves and clean cooking
solutions, Working Group 1.
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.htmlwww.iso.org/members.html.
vi
ISO/DPAS 16617:(en)
Introduction
The significance of standardization in the cookstove sector is already well established by the activity in
ISO/TC 285. In addition to the documents published by ISO, there are many other “evaluation instruments” in
existence throughout the world, covering different aspects of clean cookstoves and clean cooking solutions.
These various evaluation instruments (standards, protocols, test methods, etc.) serve a multitude of purposes
by examining a range of different metrics.
Determining the pros and cons of each evaluation instrument can be challenging. To address this gap,
instrument should be chosenis most appropriate to address the specific needs of a particular situation. By
providing this This guidance, is intended to better inform stakeholders will be better informedin order to
ensure that the end- product is fit for purpose in a holistic sense.

vii
ISO/DPAS 16617:(en)
Formatted: Right: 42.55 pt, Bottom: 28.35 pt, Gutter:
Clean Cookstovescookstoves and Clean Cooking Solutions —
0 pt, Section start: New page, Header distance from
edge: 36 pt, Footer distance from edge: 14.15 pt,
clean cooking solutions — Guidance for Evaluationevaluation
Numbering: Restart each page
Formatted: Main Title 1, Space After: 0 pt
1 Scope
Formatted: Font: Bold
This document provides guidance for examining evaluation instruments that assess cooking systems. The goal
is to ensure that a cooking system evaluation instrument achieves its objectives and is fit for a particular
purpose: doing. Doing so requiresmeans recognizing that the stove itself is just one part of a series of complex
and interacting systems, many of which are variable.
The document includes procedures to ensure that :
— an evaluation instrument captures the necessary input measures at an appropriate level of detail and
quality; and that
— outputs from the evaluation instrument are accurate, repeatable, reproducible, and appropriate for
assessing the stated outcome.
The document also provides guidance to interpret the outputs of an evaluation instrument when reporting.
The document does not specify test methods nor recommend pre-determined procedures noror benchmarks
of performance, sometimes (also known as tiers.).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the
...