BS ISO 15727:2020 pdf download

10-08-2020 comment

BS ISO 15727:2020 pdf free download.UV-C devices — Measurement of the output of a UV-C lamp.
This document specifies the measurement of the output of a UV-C lamp, types of UV-C lamp, lamp ballast, and safety issues.
It is applicable to the output measurement of linear UV-C disinfection lamps.
This document specifies a measurement method for evaluating output power of UV-C lamps installed in heating, ventilation and air conditioning (HVAC) systems. The method includes the simulation measurement of UV-C output power of UV-C lamps under various temperatures and various air velocities, and under conditions that the axial direction of the lamp is parallel or perpendicular to the air flow direction. It can reliably evaluate and compare the UV-C output power of UV-C lamps in the ultraviolet germicidal irradiation (UVGI) device based on the testing results. If the microbial inactivation rate of a particular UVGI device equipped with the same type of UV-C lamp is known, the microbial inactivation rate of the UVGI device at various temperatures and at various air velocities can be evaluated.
In recent years, these germs bring much more intense effect, including frequent occurrences of sick building syndrome, elevated nosocomial infection rate, rapid increase of air-conditioning energy consumption (a microbe film a few millimetres thick accumulates on the air conditioner coil, reducing the heat transfer efficiency of the air treatment unit),smelly air-conditioned rooms and resurgence
of tuberculosis. Many people have a drop in their own productivity and spend more on medical care because headache, chest congestion, disturbance in respiration, neurasthenia, nausea and state of mind are fidgety are the most common symptoms for people staying in the air-conditioned rooms. In additio people in air-conditioned rooms are more susceptible to the infection of ophthalmic and nasitis.
Meanwhile, clinical medical evidence suggests that various disease heart disease,
neurasthenia, memory decline and influenza, correlate with polluted indoor air. The improvement of indoor air quality is desperately needed.
Ultraviolet air disinfection devices are invented in such circumstances. Most ultraviolet air disinfection devices circulate the air indoors With media filtration and a high-efficiency UV-C lamp, disinfection devices have good effects of filtration of dust in air, meanwhile, it can kill germs and viruses directly Ind cut the spread of disease. Disinfection devices application can reduce indoor air pollution, improve indoor air quality and provide protection against pneumonia, influenza and other respiratory diseases.

Download infomation Go to download
Note: If you can share this website on your Facebook,Twitter or others,I will share more.
BS 4479-4:1990 pdf download BS Standards

BS 4479-4:1990 pdf download

BS 4479-4: 1990 pdf free download.Design of articles that are to be coated - Recommendations for paint coatings and varnish coatings. This part of BS 4479 gives recommendations for the design of parts that are to be...
Download Now
BS 4479-5:1990 pdf download BS Standards

BS 4479-5:1990 pdf download

BS 4479-5:1990 pdf free download.Design of articles that are to be coated - Recommendations for anodic oxidation coatings. This Part of BS 4479 gives recommendations for the design of metal parts that are to be coated by...
Download Now
BS 4479-6:1990 pdf download BS Standards

BS 4479-6:1990 pdf download

BS 4479-6:1990 pdf free download.Design of articles that are to be coated - Part 6:Recommendations for hot-dip metal coatings. BS 4479-6:1990 gives recommendations for the design of metal parts that are to be coated by hot dipping,...
Download Now

LEAVE A REPLY

Anonymous netizen Fill in information