prEN ISO 10121-1

Test method for assessing the performance of gas-phase air cleaning media and devices for general ventilation - Part 1: Gas-phase air cleaning media (ISO/DIS 10121‑1:2025)

ISO 10121-1:2014 aims to provide an objective laboratory test method, a suggested apparatus, normative test sections and normative tests for evaluation of three different solid gas-phase air cleaning media (GPACM) or GPACM configurations for use in gas-phase air cleaning devices intended for general filtration applications. ISO 10121-1:2014 is specifically intended for challenge testing and not for general material evaluation or pore system characterization. The three different types of GPACM identified in ISO 10121-1:2014 are GPACM-LF (particles of different shape and size intended for e.g. Loose Fill applications), GPACM-FL (FLat sheet fabric intended for e.g. flat one layer, pleated or bag type devices) and GPACM-TS (three dimensional structures that are many times thicker than flat sheet and e.g. used as finished elements in a device). The tests are conducted in an air stream and the GPACM configurations are challenged with test gases under steady-state conditions. Since elevated gas challenge concentrations (relative to general ventilation applications) are used, test data should be used to compare GPACM within the same configuration and not for the purpose of predicting performance in a real situation. It is also not implied that different GPACM configurations can be directly compared. The primary intention is to be able to compare like GPACM configurations to like, not between GPACM configurations. Testing of complete devices is described in ISO 10121‑2.
To ensure objectivity for test equipment suppliers, no specific design of the test apparatus is defined: an example is illustrated in an annex. Instead normative demands for media sample holder design, apparatus properties and validation tests are specified.

Methode zur Leistungsermittlung von Medien und Vorrichtungen zur Reinigung der Gasphase für die allgemeine Lüftung - Teil 1: Medien zur Reinigung der Gasphase (ISO/DIS 10121‑1:2025)

Méthodes d'essai pour l'évaluation de la performance des médias et des dispositifs de filtration moléculaire pour la ventilation générale - Partie 1: Médias de filtration moléculaire (GPACM) (ISO/DIS 10121‑1:2025)

L'ISO 10121-1:2014 a pour objet de fournir une méthode d'essai en laboratoire objective, un appareillage recommandé, des sections d'essai normatives et des essais normatifs pour l'évaluation de trois différents média de filtration moléculaire (GPACM) ou de configurations de GPACM utilisés dans des dispositifs de filtration moléculaire destinés à des applications de filtration générale. L'ISO 10121-1:2014 concerne spécifiquement les essais et non l'évaluation générale des matériaux ou la caractérisation du système de pores. Les trois types différents de GPACM identifiés dans l'ISO 10121-1:2014 sont le GPACM-LF (particules de différentes formes et tailles destinées par exemple aux applications utilisant un médium en vrac), le GPACM-FL (feuille textile plane destinée par exemple aux dispositifs plans à une seule couche, aux dispositifs plissés ou aux dispositifs à sac) et le GPACM-TS (structures tridimensionnelles beaucoup plus épaisses qu'une feuille plane et utilisées par exemple en tant qu'éléments finis dans un dispositif). Les essais sont réalisés dans un flux d'air et les configurations de GPACM sont soumises à essai avec des gaz d'essai dans des conditions de régime établi. Des concentrations élevées de gaz d'essai (par rapport aux applications de ventilation générale) étant utilisées, il convient d'utiliser les données d'essai pour comparer les GPACM dans la même configuration et non dans le but de prédire les performances en situation réelle. Cela ne signifie pas non plus que différentes configurations de GPACM peuvent être comparées directement. L'objectif principal est de pouvoir comparer des configurations de GPACM similaires et non des configurations de GPACM différentes. Les essais relatifs aux dispositifs complets sont décrits dans l'ISO 10121.
Pour garantir l'objectivité vis-à-vis des fournisseurs d'équipement d'essai, aucune conception spécifique de l'appareillage d'essai n'est normalisée: un exemple est donné en annexe. En revanche, les exigences normatives relatives à la conception du porte-échantillon pour média, aux propriétés des appareils et aux essais de validation sont spécifiées.

Preskusne metode za ocenjevanje lastnosti sredstev in naprav za čiščenje zraka v plinski fazi za splošno prezračevanje - 1. del: Sredstva za čiščenje zraka v plinski fazi (ISO/DIS 10121-1:2025)

General Information

• Status: Not Published
• Publication Date: 04-Jan-2027
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: CEN/TC 195 - Air filters for general air cleaning
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 03-Sep-2025
• Completion Date: 03-Sep-2025
• Ref Project: oSIST prEN ISO 10121-1:2025 - Test method for assessing the performance of gas-phase air cleaning media and devices for general ventilation - Part 1: Gas-phase air cleaning media (ISO/DIS 10121-1:2025)

Relations

• Revises: EN ISO 10121-1:2014 - Test method for assessing the performance of gas-phase air cleaning media and devices for general ventilation - Part 1: Gas-phase air cleaning media (ISO 10121-1:2014)
• Effective Date: 04-Oct-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2025
Preskusne metode za ocenjevanje lastnosti sredstev in naprav za čiščenje zraka v
plinski fazi za splošno prezračevanje - 1. del: Sredstva za čiščenje zraka v plinski
fazi (ISO/DIS 10121-1:2025)
Test method for assessing the performance of gas-phase air cleaning media and devices
for general ventilation - Part 1: Gas-phase air cleaning media (ISO/DIS 10121-1:2025)
Methode zur Leistungsermittlung von Medien und Vorrichtungen zur Reinigung der
Gasphase für die allgemeine Lüftung - Teil 1: Medien zur Reinigung der Gasphase
(ISO/DIS 10121-1:2025)
Méthodes d'essai pour l'évaluation de la performance des médias et des dispositifs de
filtration moléculaire pour la ventilation générale - Partie 1: Médias de filtration
moléculaire (GPACM) (ISO/DIS 10121-1:2025)
Ta slovenski standard je istoveten z: prEN ISO 10121-1
ICS:
13.040.99 Drugi standardi v zvezi s Other standards related to air
kakovostjo zraka quality
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 10121-1
ISO/TC 142
Test method for assessing the
Secretariat: UNI
performance of gas-phase air
Voting begins on:
cleaning media and devices for
2025-06-11
general ventilation —
Voting terminates on:
2025-09-03
Part 1:
Gas-phase air cleaning media
Méthodes d'essai pour l'évaluation de la performance des médias
et des dispositifs de filtration moléculaire pour la ventilation
générale —
Partie 1: Médias de filtration moléculaire (GPACM)
ICS: 91.140.30
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Reference number
ISO/DIS 10121-1:2025(en)
DRAFT
ISO/DIS 10121-1:2025(en)
International
Standard
ISO/DIS 10121-1
ISO/TC 142
Test method for assessing the
Secretariat: UNI
performance of gas-phase air
Voting begins on:
cleaning media and devices for
general ventilation —
Voting terminates on:
Part 1:
Gas-phase air cleaning media
Méthodes d'essai pour l'évaluation de la performance des médias
et des dispositifs de filtration moléculaire pour la ventilation
générale —
Partie 1: Médias de filtration moléculaire (GPACM)
ICS: 91.140.30
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 is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
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Published in Switzerland Reference number
ISO/DIS 10121-1:2025(en)
ii
ISO/DIS 10121-1:2025(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 8
4.1 Symbols .8
4.2 Abbreviated terms .9
5 Testing of different GPACM configurations . 10
5.1 General .10
5.2 Test setup and normative GPACM sample holder .10
5.3 Raw data, sampling accuracy and normative generation parameters . 12
5.4 Test parameters for the standardized benchmark test . 13
5.4.1 General . 13
5.4.2 Challenge test concentration . 13
5.4.3 GPACMs for VOC tested with toluene . 13
5.4.4 GPACMs for acids and bases tested with SO and NH respectively . 13
2 3
5.4.5 Retentivity test . 13
5.5 Test parameters selected between user and supplier .14
5.5.1 General .14
5.5.2 Face velocity and material thickness .14
5.5.3 Challenge compound . .14
5.5.4 Challenge concentration .14
5.5.5 Temperature and relative humidity .14
5.5.6 Test duration .14
6 Test sequence .15
6.1 General . 15
6.2 Conditioning and pressure drop determination . 15
6.2.1 Procedure . 15
6.2.2 Calculations . .16
6.2.3 Reporting and graphs .16
6.3 Capacity determination .16
6.3.1 Procedure (continued from 6.2.1) . .16
6.3.2 Calculations . .16
6.3.3 Reporting and graphs .19
6.4 Retentivity determination .19
6.4.1 General .19
6.4.2 Procedure (continued from 6.3.1) .19
6.4.3 Calculations . . 20
6.4.4 Reporting and graphs . 20
7 Validation of test setup.20
7.1 General . 20
7.2 Determination of rise time and decay time . 20
7.2.1 Procedure . 20
7.2.2 Calculations . .21
7.2.3 Reporting and graphs .21
8 Evaluation and report .22
8.1 Test report introduction . 22
8.2 Test report example . 22
9 Safety features . .26

iii
ISO/DIS 10121-1:2025(en)
Annex A (normative) Test equip
...