ISO 30500:2025
(Main)Non-sewered sanitation systems — Prefabricated integrated treatment units — General safety and performance requirements for design and testing
Non-sewered sanitation systems — Prefabricated integrated treatment units — General safety and performance requirements for design and testing
This document specifies general safety and performance requirements for design and testing as well as limited sustainability considerations such as recovery of nutrients, water consumption and reuse, energy consumption and recovery, and a life cycle assessment for non-sewered sanitation systems (NSSS). This document is applicable to NSSS that are either manufactured as one package, or manufactured as a set of prefabricated components designed to be assembled in one location without further fabrication or modification that influences the NSSS function. An NSSS, for the purposes of this document, is a prefabricated integrated treatment unit, comprising frontend (toilet facility) and backend (treatment facility) components that: a) collects, conveys and fully treats the specific input within the NSSS, to allow for safe reuse or disposal of the generated solid and liquid outputs, and the safe emission of air, noise and odour outputs; b) is designed to operate without being connected to a networked sewer or networked drainage systems. This document also covers NSSS backend components that are designed to be integrated with one or more specified frontends. This document is primarily intended for NSSS that are designed to operate without being connected to water and electricity networks. However, it may also be applied to systems that utilize supplies of either water or electricity, or both. This document defines the basic treatable input as primarily human excreta and gives options for extending the range of input substances. Requirements for the protection of human health and the environment are provided by the specified quality of the outputs, and recirculated water, if any. This document provides criteria for the safety, functionality, usability, reliability and maintainability of the system, as well as its compatibility with environmental protection goals. This document does not cover the following aspects: — guidelines for selection, installation, operation and maintenance, and management of NSSS; — requirements for the amount or type of energy or resources to recover; — transportation of treated output outside of the NSSS (e.g. manual transport, transportation by truck or trunk pipes) for further processing, reuse, or disposal; — treatment processes taking place at another location separate from that of the frontend and backend components; — external reuse and disposal of NSSS output; — the plane or surface (e.g. flooring, concrete pad) upon which a fully assembled NSSS is situated; — NSSS constructed in situ without prefabricated parts.
Systèmes d’assainissement autonomes — Unités de traitement intégrées préfabriquées — Exigences générales de performance et de sécurité pour la conception et les essais
Le présent document spécifie les exigences générales de sécurité et de performance relatives à la conception et aux essais de tels systèmes, ainsi que des considérations limitées relatives à la durabilité, telles que la récupération des nutriments, la consommation et la réutilisation de l’eau, la consommation et la réutilisation de l’énergie, et une analyse du cycle de vie pour les systèmes d’assainissement autonomes (SAA). Le présent document s’applique aux SAA fabriqués soit sous forme d’un ensemble unique, soit sous forme d’un groupe d’éléments préfabriqués conçus pour être assemblés en un endroit donné, sans fabrication ni modification supplémentaires ayant une influence sur la fonction du SAA. Pour les besoins du présent document, un SAA est une unité de traitement intégrée préfabriquée, comprenant des composants d’interfaces amont (toilettes) et aval (installation de traitement), qui: a) collecte, transporte et traite entièrement les produits entrants spécifiques du SAA, pour permettre d’éliminer ou de réutiliser en toute sécurité les produits sortants solides, liquides et gazeux ainsi générés, ainsi que d’émettre en toute sécurité l’air, le bruit et des odeurs; b) est conçu pour fonctionner sans être raccordé à un réseau d’égouts ou de drainage. Le présent document couvre également les composants de l’interface aval des SAA qui sont conçus pour être intégrés à un ou plusieurs composants spécifiés de l’interface amont. Le présent document concerne principalement les SAA qui sont conçus pour fonctionner sans être raccordés aux réseaux d’eau et d’électricité. Cependant, il peut également s’appliquer aux systèmes qui utilisent des alimentations soit en eau soit en électricité, ou les deux. Le présent document définit les produits entrants de base pouvant être traités comme étant principalement des excreta humains, et propose des solutions pour élargir la gamme des substances entrantes. Les exigences pour la protection de la santé humaine et de l’environnement sont fournies par la qualité spécifiée des produits sortants, et de l’eau de recirculation le cas échéant. Le présent document fournit les critères concernant la sécurité, la fonctionnalité, la facilité d’utilisation, la fiabilité et la facilité d’entretien du système, ainsi que sa compatibilité avec les objectifs de protection de l’environnement. Le présent document ne couvre pas les aspects suivants: — les lignes directrices pour la sélection, l’installation, l’exploitation et la maintenance, et la gestion des SAA; — les exigences relatives à la quantité ou au type d’énergie ou de ressources à récupérer; — le transport des produits sortants traités en dehors du SAA (par exemple, transport manuel, transport par camion ou tuyauterie) en vue d’une transformation, d’une réutilisation ou d’une élimination ultérieures; — les processus de traitement réalisés sur un autre site que celui des composants des interfaces amont et aval; — la réutilisation externe ou l’élimination des produits sortants du SAA; — le plan ou la surface (par exemple, revêtement de sol, dalle de béton) sur laquelle est situé un SAA entièrement assemblé; — les SAA construits in situ sans éléments préfabriqués.
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Buy Standard
Standards Content (Sample)
International
Standard
ISO 30500
Second edition
Non-sewered sanitation systems —
2025-07
Prefabricated integrated treatment
units — General safety and
performance requirements for
design and testing
Systèmes d’assainissement autonomes — Unités de traitement
intégrées préfabriquées — Exigences générales de performance
et de sécurité pour la conception et les essais
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO 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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 2
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions .2
3.1.1 System components .2
3.1.2 System inputs and outputs .3
3.1.3 System safety and integrity . . .4
3.1.4 System use and impact.6
3.2 Abbreviated terms .6
4 General requirements . 8
4.1 User requirements.8
4.2 Metric system .8
4.3 Design capacity and operability.8
4.3.1 Treatable input .8
4.3.2 Treatment capacity .8
4.3.3 Menstrual hygiene products .8
4.3.4 Overload protection.9
4.3.5 Operability following non-usage .9
4.3.6 Operability following short-term shutdown .9
4.3.7 Operability following long-term shutdown .9
4.3.8 Continuous use .9
4.3.9 Safe state .9
4.4 Performance requirements .9
4.4.1 General .9
4.4.2 Solid output, effluent and recirculated water requirements . .9
4.4.3 Odour emissions requirements .10
4.4.4 Noise requirements .10
4.4.5 Air emissions requirements .10
4.5 Expected design lifetime .10
4.6 Ergonomic design .10
4.7 Secure design .10
4.8 Operating conditions .10
4.8.1 Ambient temperature range .10
4.8.2 Ambient air humidity .11
4.8.3 Atmospheric pressure .11
4.9 Requirements for NSSS components .11
4.9.1 General .11
4.9.2 Hygienic design .11
4.9.3 Tightness .11
4.9.4 Cleanability of surfaces .11
4.9.5 Chemical and biological additives . 12
4.9.6 Requirements for ease of operation . 12
4.10 Material requirements. 12
4.10.1 Durability of materials . 12
4.10.2 Fire resistance of materials . 12
4.11 Connections and joining elements . 12
4.12 General safety design requirements . 13
4.12.1 Safety of edges, angles, and surfaces. 13
4.12.2 Fire and explosion protection. 13
4.12.3 Structural integrity. 13
4.12.4 Prevention of hazardous contact with partially treated liquids and reuse .14
4.12.5 Underground systems .14
iii
4.12.6 External impacts .14
4.13 Information and marking .14
4.13.1 Information and warnings .14
4.13.2 Marking and labelling . 15
4.14 Maintenance . 15
4.14.1 Reasonable configuration, adjustment, and maintenance activities . 15
4.14.2 Location and access of configuration, adjustment, and maintenance points . 15
4.14.3 Discharge and cleaning . 15
4.14.4 Tools and devices .16
4.14.5 User manual .16
4.14.6 Handling and transport of the NSSS .16
5 Technical requirements . 16
5.1 Safety assessment .16
5.2 Operational requirements .17
5.2.1 General .17
5.2.2 Intentional starting of NSSS operation .17
5.2.3 Intentional stopping of NSSS operation .17
5.2.4 Emergency stop .
...
Norme
internationale
ISO 30500
Deuxième édition
Systèmes d’assainissement
2025-07
autonomes — Unités de traitement
intégrées préfabriquées
— Exigences générales de
performance et de sécurité pour la
conception et les essais
Non-sewered sanitation systems — Prefabricated integrated
treatment units — General safety and performance requirements
for design and testing
Numéro de référence
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2025
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
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Publié en Suisse
ii
Sommaire Page
Avant-propos .vi
Introduction .vii
1 Domaine d’application . 1
2 Références normatives . 2
3 Termes, définitions et abréviations . 2
3.1 Termes et définitions .2
3.1.1 Composants du système .2
3.1.2 Produits entrants et sortants du système .3
3.1.3 Sécurité et intégrité du système .5
3.1.4 Utilisation et impact du système.6
3.2 Abréviations.7
4 Exigences générales . . 8
4.1 Exigences de l’utilisateur.8
4.2 Système métrique .9
4.3 Capacité de conception et fonctionnement.9
4.3.1 Produits entrants traitables .9
4.3.2 Capacité de traitement .9
4.3.3 Produits d’hygiène menstruelle.9
4.3.4 Protection contre les surcharges .9
4.3.5 Fonctionnement à la suite d’une non-utilisation .9
4.3.6 Fonctionnement à la suite d’un arrêt de courte durée .10
4.3.7 Fonctionnement à la suite d’un arrêt de longue durée .10
4.3.8 Utilisation en continu .10
4.3.9 État de sécurité .10
4.4 Exigences de performance .10
4.4.1 Généralités .10
4.4.2 Exigences relatives aux produits sortants solides, aux effluents et à l’eau de
recirculation .10
4.4.3 Exigences relatives aux émissions d’odeurs .10
4.4.4 Exigences relatives au bruit .11
4.4.5 Exigences relatives aux émissions atmosphériques .11
4.5 Durée de vie prévue à la conception .11
4.6 Conception ergonomique . . .11
4.7 Conception sécurisée .11
4.8 Conditions de fonctionnement . . .11
4.8.1 Plage de température ambiante.11
4.8.2 Humidité de l’air ambiant . 12
4.8.3 Pression atmosphérique . 12
4.9 Exigences relatives aux composants des SAA . . 12
4.9.1 Généralités . 12
4.9.2 Conception hygiénique . 12
4.9.3 Étanchéité . 12
4.9.4 Facilité de nettoyage des surfaces . 13
4.9.5 Additifs chimiques et biologiques . 13
4.9.6 Exigences relatives à la facilité d’utilisation . 13
4.10 Exigences relatives aux matériaux . 13
4.10.1 Durabilité des matériaux . 13
4.10.2 Résistance au feu des matériaux .14
4.11 Connexions et éléments d’assemblage .14
4.12 Exigences générales de conception liées à la sécurité .14
4.12.1 Sécurité des arêtes, des angles et des surfaces .14
4.12.2 Protection contre les incendies et les explosions .14
4.12.3 Intégrité de la structure . 15
iii
4.12.4 Prévention du contact dangereux avec des liquides partiellement traités et
réutilisation . 15
4.12.5 Systèmes souterrains . 15
4.12.6 Influences extérieures . 15
4.13 Informations et marquage .16
4.13.1 Informations et avertissements .16
4.13.2 Marquage et étiquetage .16
4.14 Maintenance .17
4.14.1 Activités raisonnables de configuration, de réglage et de maintenance .17
4.14.2 Emplacement et accès aux points de configuration, de réglage et de maintenance .17
4.14.3 Évacuation et nettoyage .17
4.14.4 Outils et appareils .17
4.14.5 Mode d’emploi .18
4.14.6 Manipulation et transport du SAA .18
5 Exigences techniques .18
5.1 Évaluation de la sécurité .18
5.2 Exigences fonctionnelles.18
5.2.1 Généralités .18
5.2.2 Démarrage intentionnel du SAA .18
5.2.3 Arrêt intentionnel du SAA.19
5.2.4 Arrêt d’urgence .
...
FINAL DRAFT
International
Standard
ISO/FDIS 30500
ISO/PC 305
Non-sewered sanitation systems —
Secretariat: ANSI
Prefabricated integrated treatment
Voting begins on:
units — General safety and
2025-04-17
performance requirements for
Voting terminates on:
design and testing
2025-06-12
Systèmes d'assainissement autonomes — Unités de traitement
intégrées préfabriquées — Exigences générales de performance
et de sécurité pour la conception et les essais
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/FDIS 30500:2025(en) © ISO 2025
FINAL DRAFT
ISO/FDIS 30500:2025(en)
International
Standard
ISO/FDIS 30500
ISO/PC 305
Non-sewered sanitation systems —
Secretariat: ANSI
Prefabricated integrated treatment
Voting begins on:
units — General safety and
performance requirements for
Voting terminates on:
design and testing
Systèmes d'assainissement autonomes — Unités de traitement
intégrées préfabriquées — Exigences générales de performance
et de sécurité pour la conception et les essais
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 2025
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 30500:2025(en) © ISO 2025
ii
ISO/FDIS 30500:2025(en)
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 2
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions .2
3.1.1 System components .2
3.1.2 System inputs and outputs .3
3.1.3 System safety and integrity . . .4
3.1.4 System use and impact.6
3.2 Abbreviated terms .7
4 General requirements . 8
4.1 User requirements.8
4.2 Metric system .8
4.3 Design capacity and operability.8
4.3.1 Treatable input .8
4.3.2 Treatment capacity .8
4.3.3 Menstrual hygiene products .9
4.3.4 Overload protection.9
4.3.5 Operability following non-usage .9
4.3.6 Operability following short-term shut down .9
4.3.7 Operability following long-term shut down .9
4.3.8 Continuous use .9
4.3.9 Safe state .9
4.4 Performance requirements .10
4.4.1 General .10
4.4.2 Solid output, effluent and recirculated water requirements . .10
4.4.3 Odour emissions requirements .10
4.4.4 Noise requirements .10
4.4.5 Air emissions requirements .10
4.5 Expected design lifetime .10
4.6 Ergonomic design .10
4.7 Secure design .10
4.8 Operating conditions .11
4.8.1 Ambient temperature range .11
4.8.2 Ambient air humidity .11
4.8.3 Atmospheric pressure .11
4.9 Requirements for NSSS components .11
4.9.1 General .11
4.9.2 Hygienic design .11
4.9.3 Tightness . 12
4.9.4 Cleanability of surfaces . 12
4.9.5 Chemical and biological additives . 12
4.9.6 Requirements for ease of operation . 12
4.10 Material requirements. 12
4.10.1 Durability of materials . 12
4.10.2 Fire resistance of materials . 13
4.11 Connections and joining elements . 13
4.12 General safety design requirements . 13
4.12.1 Safety of edges, angles, and surfaces. 13
4.12.2 Fire and explosion protection. 13
4.12.3 Structural integrity.14
4.12.4 Prevention of hazardous contact with partially treated liquids and reuse .14
4.12.5 Underground systems .14
iii
ISO/FDIS 30500:2025(en)
4.12.6 External impacts .14
4.13 Information and marking .14
4.13.1 Information and warnings .14
4.13.2 Marking and labelling . 15
4.14 Maintenance . 15
4.14.1 Reasonable configuration, adjustment, and maintenance activities . 15
4.14.2 Location and access of configuration, adjustment, and maintenance points .16
4.14.3 Discharge and cleaning .16
4.14.4 Tools and devices .16
4.14.5 User manual .
...
ISO/FDIS 30500:2025(en)
ISO/PC 305
Secretariat: ANSI
Date: 2025-02-2104-03
Non-sewered sanitation systems — Prefabricated integrated
treatment units — General safety and performance requirements for
design and testing
Systèmes d'assainissement autonomes — Unités de traitement intégrées préfabriquées — Exigences générales
de performance et de sécurité générales pour la conception et les essais
FDIS stage
ISO/FDIS 30500:2025(en)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO'sISO’s member body in the country of the requester.
ISO Copyright Officecopyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: E-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland.
ii
ISO/FDIS 30500:2025(en)
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Terms, definitions and abbreviated terms . 2
4 General requirements . 8
5 Technical requirements . 17
6 Additional requirements for the frontend . 22
7 Performance testing . 25
8 Sustainability . 37
Annex A (normative) Test methods and additional testing requirements . 40
Annex B (normative) Risk assessment and list of significant hazards . 78
Annex C (normative) User manuals . 86
Annex D (informative) Sustainability measures . 89
Annex E (informative) Design considerations . 91
Annex F (informative) Health and environment parameters — Notes and references . 95
Annex G (informative) Remote monitoring . 97
Annex H (informative) Guidelines of electrically operated spray toilet seat used for frontends of
NSSS — comfortability aspects . 104
Annex I (Normative) Alternative feedstocks and characterisation . 108
Annex J (Informative) Summary of parameters declared by manufacturer and parameters
tested by third-party laboratory . 117
Bibliography . 118
iii
ISO/FDIS 30500:2025(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 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 Project Committee ISO/PC 305, Sustainable non-sewered sanitation systems.
This second edition cancels and replaces the first edition (ISO 30500:2018), which has been technically
revised.
The main changes are as follows:
—
— Clause 2 normative references have been updated;
— Clause 3 terms and definitions have been updated;
— technical information throughout the document has been aligned with the state of art;
— the bibliography has been updated.
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/FDIS 30500:2025(en)
Introduction
It is estimated that 1,5 billion people do not have access to basic sanitation systems. The devastating
consequences of the lack of sanitation facilities include an estimated 2,0 billion people globally using a source
of drinking water that is faecally contaminated, and in March of 2024, the World Health Organization (WHO)
reported that around 444,000 children under 5 years of age dying per year, primarily from dysentery-like
diarrhoeal diseases.
In March 2013, the United Nations (UN) issued a global call to action to eliminate the practice of open
defecation by 2025. However, by 2018, the plan to end open defecation had been extended to 2030 and
beyond. Although open defecation is often associated with low-income regions, it is also an increasing problem
in urban areas of higher-income regions, where the provision of public toilets has been reduced for economic
[ ]
reasons. 158 [158]. The UN and regional sanitation leaders have concluded that areas where open defecation
is common have the highest levels of child death and disease, as a result of ingesting human faecal matter that
has entered the food or water supply. A lack of safe, private sanitation is also associated with the highest
overall levels of malnutrition, poverty and disparity between rich and poor, and makes women and girls more
vulnerable to violence.
On 1 January 2016, the 17 UN Sustainable Development Goals (SDG) were launched, including SDG 6:
ensureEnsure access to water and sanitation for all. The SDGs are a set of goals to end poverty, protect the
planet and ensure prosperity for all as part of the new UN sustainable development agenda.
Targets 6.2 and 6.3 of SDG 6 state:
— — by 2030, achieve access to adequate and equitable sanitation and hygiene for all and end open
defecation, paying special attention to the needs of women and girls and those in vulnerable situations;
— — by 2030, improve water quality by reducing pollution, eliminating dumping and minimizing release of
hazardous chemicals and materials, halving the proportion of untreated wastewater and substantially
increasing recycling and safe reuse globally.
In May 2024, the UN released the report United Nations System-Wide Strategy for Water and Sanitation, which
highlighted that progress on SDG 6 was ‘"off-track.’." To accelerate progress, the report identifies five Global
[ ]
Accelerators, including innovation. 156Innovation [156]. In this context, the purpose of this document is to
support the development of stand-alone sanitation systems designed to address sanitation needs while
promoting economic, social, and environmental sustainability through strategies that include minimizing
resource consumption (e.g. water, energy) and converting human excreta to safe output.
This document is intended to promote the development and implementation of prefabricated integrated
treatment units as non-sewered sanitation systems (NSSS), notably where other sanitation systems are not
cost effective, unavailable or impractical. This aims to ensure human health and safety as well as protecting
the environment.
However, this document does not attempt to exhaustively address sustainability concerns with respect to
NSSS.
The concept of the NSSS is indicated in Figure 1Figure 1,, showing the integration of the frontend(s) and
backend(s) along with the input and output. Inputs entering the NSSS primarily comprise of human faeces and
urine, menstrual blood, bile, flushing water, anal cleansing water, toilet paper, and other bodily fluids/solids.
Outputs substances exiting the NSSS include the products of the backend treatment process such as solid
output and effluent, as well as noise, air and odour emissions.
By design, NSSS operate without being connected to a networked sewer or networked drainage systems. The
NSSS can be either manufactured as one package or manufactured as a set of prefabricated components
v
ISO/FDIS 30500:2025(en)
designed to be assembled without further fabrication or modification that influences the system function. The
prefabricated components of NSSS are intended to require minimal work to be integrated and quickly provide
fully functioning sanitation systems.
vi
ISO/FDIS 30500:2025(en)
vii
ISO/FDIS 30500:2025(en)
Figure 1 — Concept of a NSSS
In NSSS, the frontend includes user interfaces such as a urinal, squatting pan, or sitting pan, which maycan
apply evacuation mechanisms ranging from conventional flush, pour flush, and dry toilets to novel evacuation
mechanisms such as those employing mechanical forces requiring little to no water. Conventional and novel
evacuation mechanisms maycan be combined with urine diversion applications (e.g. urine diversion flush
toilet, urine diversion dry toilet). Backend treatment technologies and processes of NSSS range from biological
or chemical to physical unit processes (e.g. anaerobic and aerobic digestion, combustion, electrochemical
disinfection, membranes). Some systems maycan use only one of these technologies or processes while others
maycan apply various unit processes in combination through several treatment units.
viii
FINAL DRAFT International Standard ISO/FDIS 30500:2025(en)
Non-sewered sanitation systems — Prefabricated integrated
treatment units — General safety and performance requirements for
design and testing
1 Scope
This document specifies general safety and performance requirements for design and testing as well as limited
sustainability considerations such as recovery of nutrients, water consumption and reuse, energy
consumption and recovery, and a life cycle assessment for non-sewered sanitation systems (NSSS).
This document is applicable to NSSS that are either manufactured as one package, or manufactured as a set of
prefabricated components designed to be assembled in one location without further fabrication or
modification that influences the NSSS function.
An NSSS, for the purposes of this document, is a prefabricated integrated treatment unit, comprising frontend
(toilet facility) and backend (treatment facility) components that:
a) a) collects, conveys and fully treats the specific input within the NSSS, to allow for safe reuse or disposal
of the generated solid and liquid outputs, and the safe emission of air, noise and odour outputs;
b) b) is designed to operate without being connected to a networked sewer or networked drainage systems.
This document also covers NSSS backend components that are designed to be integrated with one or more
specified frontends.
This document is primarily intended for NSSS that are designed to operate without being connected to water
and electricity networks. However, it may also be applied to systems that utilize supplies of either water or
electricity, or both.
This document defines the basic treatable input as primarily human excreta and gives options for extending
the range of input substances. Requirements for the protection of human health and the environment are
provided by the specified qua
...
PROJET FINAL
Norme
internationale
ISO/FDIS 30500
ISO/PC 305
Systèmes d’assainissement
Secrétariat: ANSI
autonomes — Unités de traitement
Début de vote:
intégrées préfabriquées
2025-04-17
— Exigences générales de
Vote clos le:
performance et de sécurité pour la
2025-06-12
conception et les essais
Non-sewered sanitation systems — Prefabricated integrated
treatment units — General safety and performance requirements
for design and testing
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
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AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
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Numéro de référence
ISO/FDIS 30500:2025(fr) © ISO 2025
PROJET FINAL
ISO/FDIS 30500:2025(fr)
Norme
internationale
ISO/FDIS 30500
ISO/PC 305
Systèmes d’assainissement
Secrétariat: ANSI
autonomes — Unités de traitement
Début de vote:
intégrées préfabriquées
2025-04-17
— Exigences générales de
Vote clos le:
performance et de sécurité pour la
2025-06-12
conception et les essais
Non-sewered sanitation systems — Prefabricated integrated
treatment units — General safety and performance requirements
for design and testing
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
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ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
© ISO 2025 INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
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Publié en Suisse Numéro de référence
ISO/FDIS 30500:2025(fr) © ISO 2025
ii
ISO/FDIS 30500:2025(fr)
Sommaire Page
Avant-propos .vi
Introduction .vii
1 Domaine d’application . 1
2 Références normatives . 2
3 Termes, définitions et abréviations . 2
3.1 Termes et définitions .2
3.1.1 Composants du système .2
3.1.2 Produits entrants et sortants du système .3
3.1.3 Sécurité et intégrité du système .5
3.1.4 Utilisation et impact du système.6
3.2 Abréviations.7
4 Exigences générales . . 8
4.1 Exigences de l’utilisateur.8
4.2 Système métrique .9
4.3 Capacité de conception et fonctionnement.9
4.3.1 Produits entrants traitables .9
4.3.2 Capacité de traitement .9
4.3.3 Produits d’hygiène menstruelle.9
4.3.4 Protection contre les surcharges .9
4.3.5 Fonctionnement à la suite d’une non-utilisation .9
4.3.6 Fonctionnement à la suite d’un arrêt de courte durée .10
4.3.7 Fonctionnement à la suite d’un arrêt de longue durée .10
4.3.8 Utilisation en continu .10
4.3.9 État de sécurité .10
4.4 Exigences de performance .10
4.4.1 Généralités .10
4.4.2 Exigences relatives aux produits sortants solides, aux effluents et à l’eau de
recirculation .10
4.4.3 Exigences relatives aux émissions d’odeurs .10
4.4.4 Exigences relatives au bruit .11
4.4.5 Exigences relatives aux émissions atmosphériques .11
4.5 Durée de vie prévue à la conception .11
4.6 Conception ergonomique . . .11
4.7 Conception sécurisée .11
4.8 Conditions de fonctionnement . . .11
4.8.1 Plage de température ambiante.11
4.8.2 Humidité de l’air ambiant . 12
4.8.3 Pression atmosphérique . 12
4.9 Exigences relatives aux composants des SAA . . 12
4.9.1 Généralités . 12
4.9.2 Conception hygiénique . 12
4.9.3 Étanchéité . 12
4.9.4 Facilité de nettoyage des surfaces . 13
4.9.5 Additifs chimiques et biologiques . 13
4.9.6 Exigences relatives à la facilité d’utilisation . 13
4.10 Exigences relatives aux matériaux . 13
4.10.1 Durabilité des matériaux . 13
4.10.2 Résistance au feu des matériaux .14
4.11 Connexions et éléments d’assemblage .14
4.12 Exigences générales de conception liées à la sécurité .14
4.12.1 Sécurité des arêtes, des angles et des surfaces .14
4.12.2 Protection contre les incendies et les explosions .14
4.12.3 Intégrité de la structure . 15
iii
ISO/FDIS 30500:2025(fr)
4.12.4 Prévention du contact dangereux avec des liquides partiellement traités et
réutilisation . 15
4.12.5 Systèmes souterrains . 15
4.12.6 Influences extérieures . 15
4.13 Informations et marquage .16
4.13.1 Informations et avertissements .16
4.13.2 Marquage et étiquetage .16
4.14 Maintenance .17
4.14.1 Activités raisonnables de configuration, de réglage et de maintenance .17
4.14.2 Emplacement et accès aux points de configuration, de réglage et de maintenance .17
4.14.3 Évacuation et nettoyage .17
4.14.4 Outils et appareils .
...
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