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ISO 18560-1-2014 pdf free download
ISO 18560-1-2014 pdf free download.Fine ceramics (advanced ceramics, advanced technical ceramics) Test method for air-purification performance of semiconducting photocatalytic materials by test chamber method under indoor lighting environment Part 1:Removal of formaldehyde
Céramiques techniques — Méthode d’essai pour mesurer les performances des inatériaux photocatalytiques semiconducteurs pour purifier I’air selon Ia méthode de Ia chambre d’essai dans un environnement d’éclairage intérleur — Pa rtie 1: Elimination du form a Idéhyde.
6.5 Supply air spiked with formaldehyde
Apply a standard gas (with known formaldehyde concentration) or a stable source like a formaldehyde solution as specified in ISO 6353-3, or paraformaldehyde. to generate air spiked with formaldehyde that can be supplied to the test chamber. Stability of formaldehyde concentration shall be monitored.
6.6 Temperature and humidity controls
The temperature shall be maintained either by installing the test chamber in a temperature controlled environment, such as a constant-temperature climate chamber, or by maintaining the required temperature in the chamber. Relative humidity shall be maintained in accordance with Z2..i.Temperature and humidity controls of the supply air are described in ISO 16000-9.
6.7 Air flow meter
An air flow meter shall be installed at the inlet or the outlet of the test chamber to measure the air flow rate through the chamber.
6.8 Light source and UV sharp cut-off filter
The light source for indoor lighting environment is specified in ISO 14605. A halophosphate or triphosphor fluorescent lamp with a correlated colour temperature of between 3 800 K to 4 500 K shall he used. When a triphosphor fluorescent lamp Is used for evaluating, the fluorescent lamp of the CIE 1974 general colour rendering Index (Ra) defined by CIE 13.3 higher than 80 shall be selected. A UV sharp cut-off filter specified in ISO 14605 shall be used under UV cut-off condition. The test specimen shall be irradiated uniformly through the window by the light source. The light source that requires warming up shall be equipped with a shutter. The distance between the light source and the chamber shall be adjusted so that the illuminance on the test specimen surface is 1 000 lx ± 50 lx. The irradiance along the length of the test specimen shall also be constant within ± 5 %. The illuminance shall be measured with an illuminance meter which has been calibrated by a calibration laboratory. Reflection plate of luminaire and a shielding device of the reactor from external light are to show small or constant absorption in 1W and indoor light. The reactor shall be shielded from external light if necessary.
6.9 Air sampling devices
The inlet and outlet air of the test chamber shall both be sampled.
If a duct or tube is used, it shall be as short as possible and maintained at the same air temperature as that in the test chamber. Such a duct or tube shall be made of a material with a very low sorption capacity, such as polytetrafluoroethylene.
The sum of sampling air (low rates shall he smaller than the air flow rate into the chamber. Sampling devices shall comply with the specifications of ISO 16000-3.ISO 18560-1-2014 pdf free download.
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