ISO 15727-2020 pdf free.UV-C devices – Measurement of theoutput of a UV-C lamp.
This document specifies the measurement of the output of a Uv-C lamp, types of Uv-C lamp, lampballast, and safety issues.
lt 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 installedin heating,ventilation and air conditioning (HVAC) systems. The method includes the simulationmeasurement of Uv-C output power of uv-C lamps under various temperatures and various airvelocities,and under conditions that the axial direction of the lamp is parallel or perpendicular tothe air flow direction. It can reliably evaluate and compare the Uv-C output power of Uv-C lamps inthe ultraviolet germicidal irradiation (uvGI) device based on the testing results. If the microbialinactivation rate of a particular UVGl device equipped with the same type of Uv-C lamp is known, themicrobial inactivation rate of the UVGl device at various temperatures and at various air velocities canbe evaluated.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references,only the edition cited applies. Forundated references, the latest edition of the referenced document (including any amendments) applies.ISO 15858,UV-C Devices -Safety information — Permissible human exposure
ISO 29464:2017, Cleaning of air and other gases — Terminology
ISO/IEC 17025,General requirements for the competence of testing and calibration laboratoriesCIE S 017,International Lighting Vocabulary
For the purposes of this document, the terms and definitions given in ISo 29464,CIE S 017 and thefollowing apply.
Uv-C radiation conversion efficiency
ability of a Uv-C(3.2) lamp to convert electrical power into Uv-Cradiation power
Note 1 to entry:The ratio is the Uv-C radiation power accounting for the electrical power of the UV-C lamp.TheUv-C conversion efficiency of a low pressure uV-C lamp (3.5) at 253,7 nm is between 25 % and 45 %.The Uv-Cconversion efficiency should be not less than 30 % in an air disinfection field under all circumstances due toenergy consumption of the system.ISO 15727 pdf download.