Among the ultraviolet wavelength ranges, UV-C has been shown to possess the highest efficacy in terms of microbial inactivation and, as a result, this technology is widely used to decontaminate surfaces, air, and water.
Test labs offer both UKAS accredited and in-house validated testing to determine the efficacy of your UV-C technology in terms of microbial activity, safety levels and UV-C output measurement.
While many UV-C whole-room decontamination devices have been developed since the beginning of the COVID-19 pandemic, the technology has also been utilised in more novel ways. At Test Labs, we have experience in adapting the test methods of UV-C standards to better fit these devices, helping us provide data that more accurately reflects the device’s intended usage.
Frequently Asked Questions
What is UV‑C Technology Efficacy Testing?
UV‑C Technology Efficacy Testing evaluates how effectively ultraviolet‑C light systems inactivate microorganisms on surfaces, in air, or within defined environments. Testing assesses microbial reduction performance, UV‑C output, and safety parameters to demonstrate that the technology performs as intended under realistic use conditions.
What types of UV‑C technologies can be tested?
We test a wide range of UV‑C technologies, including conventional 254–255 nm UV‑C lamps, UV‑C LEDs (265-275 nm), and Far‑UV‑C systems (e.g. 222 nm). Testing can be applied to fixed units, mobile systems, enclosed devices, or integrated disinfection solutions, depending on their intended use and claims.
Which standards are used for UV‑C efficacy testing?
UV‑C efficacy testing is performed in line with BS 8628:2022, which defines quantitative methods for assessing automated ultraviolet disinfection activities by direct illumination. Where required, testing can be provided with UKAS‑accredited reporting to support regulatory and commercial claims.
How is microbial efficacy assessed?
Microbial efficacy is assessed by exposing selected microorganisms to the UV‑C system under defined conditions and measuring the reduction achieved. Testing can include bactericidal, sporicidal, fungicidal, and yeasticidal organisms, allowing performance to be demonstrated against relevant real‑world contamination.
Can safety and UV‑C output be evaluated as part of testing?
Yes. Testing can include verification that UV‑C output levels meet applicable safety requirements and that human exposure limits are respected. Output measurement and safety assessments are conducted using recognised standards and validated in‑house methods appropriate to the technology being evaluated.