BS ISO 10678:2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Fine ceramics (advanced ceramics, advanced technical ceramics). Determination of photocatalytic activity of surfaces in an aqueous medium by degradation of methylene blue
Hardcopy , PDF
28-10-2024
English
31-10-2010
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Foreword
1 Scope
2 Terms and definitions
3 Symbols and units
4 Principle
5 Apparatus
6 Calibration
7 Measuring and conditioning solution
8 Sample preparation
9 Preparation of the measurement
10 Procedure of the measurement
11 Evaluation of results
12 Precision
13 Test report
Annex A (informative) - Example of a data evaluation
Annex B (informative) - Examples of suitable measuring devices
Annex C (informative) - Results of the inter-laboratory test
Bibliography
Describes a method for the determination of the photocatalytic activity of surfaces by degradation of the dye molecule methylene blue (MB) in aqueous solution using artificial ultraviolet (UV) radiation, and characterizes the ability of photoactive surfaces to degrade dissolved organic molecules on ultraviolet radiation.
| Committee |
RPI/13
|
| DevelopmentNote |
Supersedes 09/30184697 DC. (10/2010)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This International Standard specifies a method for the determination of the photocatalytic activity of surfaces by degradation of the dye molecule methylene blue (MB) in aqueous solution using artificial ultraviolet (UV) radiation, and characterizes the ability of photoactive surfaces to degrade dissolved organic molecules on ultraviolet radiation.
The test method specified is also applicable to evaluation of the specific photocatalytic self-cleaning activity of surfaces covered with respective coatings.
This method is not applicable to characterizing the photoactivity of surfaces on visible illumination, regarding direct soiling, degradation of gaseous molecules and the determination of antimicrobial photoactivity of surfaces.
NOTE Correlations between these different kinds of photocatalytic activity can, however, exist, in particular at surfaces exhibiting low photonic efficiencies.
| Standards | Relationship |
| ISO 10678:2010 | Identical |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
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