ISO 17168-4:2018

Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for air-purification performance of semiconducting photocatalytic materials under indoor lighting environment — Part 4: Removal of formaldehyde

This document specifies a test method for the determination of the air-purification performance, with regards to the removal of formaldehyde, of materials that contain a photocatalyst or have photocatalytic films on the surface, usually made from semiconducting metal oxides such as titanium dioxide or other ceramic materials, by continuous exposure of a test piece to the model air pollutant under illumination from indoor light. This document is intended for use with different kinds of materials, such as construction materials in flat sheet, board or plate shape, which are the basic forms of materials for various applications. This document also applies to materials in honeycomb form, and to plastic or paper materials containing ceramic microcrystals and composites. This document does not apply to powder or granular photocatalytic materials. This test method is usually applicable to photocatalytic materials produced for air purification. This method is not suitable for the determination of other performance attributes of photocatalytic materials, i.e. decomposition of water contaminants, self-cleaning, antifogging and antibacterial actions.

Titre manque — Partie 4: Titre manque

General Information

• Status: Published
• Publication Date: 18-Sep-2018
• ICS: 81.060.30 - Advanced ceramics
• Technical Committee: ISO/TC 206 - Fine ceramics
• Drafting Committee: ISO/TC 206/WG 9 - Photocatalysis
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 12-Mar-2024

Relations

• Revised: ISO 22197-4:2013 - Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for air-purification performance of semiconducting photocatalytic materials — Part 4: Removal of formaldehyde
• Effective Date: 01-Jun-2013

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 17168-4
First edition
2018-09
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Test method for air-purification
performance of semiconducting
photocatalytic materials under indoor
lighting environment —
Part 4:
Removal of formaldehyde
Reference number
ISO 17168-4:2018(E)
©
ISO 2018

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ISO 17168-4:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 17168-4:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
6 Apparatus . 2
6.1 Test equipment . 2
6.2 Test gas supply . 3
6.3 Photoreactor . 4
6.4 Light source . 6
6.5 UV sharp cut-off filter . 6
6.6 Analytical system . 6
7 Test piece . 6
8 Procedure. 6
8.1 General aspects . 6
8.2 Pretreatment of test piece .
...