BS ISO 27447:2019
$167.15
Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for antibacterial activity of semiconducting photocatalytic materials
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 36 |
This document specifies a test method for the determination of the antibacterial activity of materials that contain a photocatalyst or have photocatalytic films on the surface, by measuring the enumeration of bacteria under irradiation of ultraviolet light.
This document is intended for use with different kinds of semiconducting photocatalytic materials used in construction materials in flat sheet, board, plate shape or textiles that are the basic forms of materials for various applications. It does not include powder, granular or porous photocatalytic materials.
This test method is usually applicable to photocatalytic materials produced for antibacterial effect. Other types of performance of photocatalytic materials, i.e. antifungal activity, antiviral activity, decomposition of water contaminants, self-cleaning, antifogging and air purification, are not determined by this method.
The values expressed in this document are in accordance with the International System of Units (SI).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 9 | Introduction |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 Symbols |
| 13 | 5 Principle |
| 14 | 6 Materials 6.1 Bacteria used and preparation for tests 6.1.1 Film cover method 6.1.2 Glass cover method 6.1.3 Bacteria preparation |
| 15 | 6.2 Chemicals and implements 6.2.1 General 6.2.2 1/500 nutrient broth 6.2.3 Nutrient broth 6.2.4 Nutrient agar 6.2.5 Soybean-casein digest broth with lecithin and polysorbate 80 (SCDLP) 6.2.6 Physiological saline solution 6.2.7 Physiological saline solution for washout |
| 16 | 6.2.8 Non-ionic surfactant 7 Apparatus 7.1 Test equipment 7.2 Cover film 7.3 Cover glass |
| 17 | 7.4 Moisture preservation glass 7.5 Glass tube or glass rod 7.6 Paper filter 7.7 Light source 7.8 UV radiometer 7.9 Punched metal sheet |
| 19 | 8 Test piece 8.1 Film cover method 8.2 Glass cover method 9 Procedure 9.1 General |
| 21 | 9.2 Film cover method 9.3 Glass cover method |
| 22 | 9.4 UV irradiation condition |
| 23 | 9.5 Measurement of the number of living bacteria |
| 24 | 10 Calculation 10.1 General 10.2 Film cover method |
| 25 | 10.3 Glass cover method |
| 26 | 11 Test report |
| 28 | Annex A (informative) Examples of test results |
| 30 | Annex B (informative) Reference data of cover films and cover glasses |
| 32 | Annex C (informative) Reference data of damage caused by ultraviolet to bacteria |
| 34 | Bibliography |
