Overview
IEC PAS 63313:2021 is an internationally recognized, publicly available specification issued by the International Electrotechnical Commission (IEC). This document provides important safety guidelines for the use of germicidal UV-C irradiation, particularly focusing on UV-C sources and products that emit radiation in the wavelength range of 180 nm to 280 nm. These guidelines aim to assist manufacturers, regulators, and end-users in addressing the safe deployment and handling of UV-C devices, especially as they become more widely used for disinfection purposes in the response to global health challenges.
The standard specifically excludes products and applications already covered by their own safety standards, such as UV-C water and air disinfection equipment (covered under IEC 60335-2-109 and IEC 60335-2-65), as well as products that combine UV-C with chemicals, and devices emitting outside the UV-C range.
Key Topics
- UV-C Safety Requirements: Summarizes essential safety criteria based on the photobiological safety standard IEC 62471, tailored to sources emitting in the 180 nm - 280 nm range.
- Irradiance and Exposure: Details methods for measuring effective UV-C irradiance, categorizing equipment based on risk groups, and establishing maximum exposure times and safe distances.
- Ozone Safety: Offers safeguard guidance for devices that generate ozone (particularly those below 240 nm) to prevent harmful human exposure, referencing international exposure limits.
- Labeling and User Information: Specifies requirements for warning labels, instructional materials, and user manuals to ensure safe installation, operation, and maintenance.
- Safeguard Measures: Distinguishes between types of safeguards (instructional, time, equipment, containment, personal), and sets forth when each is required based on risk group classification and device accessibility.
Applications
IEC PAS 63313:2021 is highly relevant for:
- Manufacturers of UV-C Devices: Providing product designers and engineers with guidance on photobiological and ozone safety, as well as instructions for correct labeling and user training.
- Facility Managers and Installers: Ensuring that UV-C irradiation devices installed in medical facilities, public spaces, and industrial settings comply with international safety standards.
- Regulatory Authorities: Offering a basis for safety assessments and market surveillance in situations where dedicated product standards may not yet exist.
- End-Users and Purchasers: Informing consumers and professionals about the hazards associated with UV-C radiation and the need for compliance with clear safety guidelines.
The standard is particularly applicable to a broad variety of UV-C disinfection devices not already specifically regulated, helping prevent human and material hazards, and mitigating related risks such as the production of ozone.
Related Standards
- IEC 62471:2006 "Photobiological safety of lamps and lamp systems": The foundational standard for evaluating the photobiological hazards of UV, visible, and infrared radiation.
- IEC 62368-1:2018 "Audio/video, information and communication technology equipment ‒ Part 1: Safety requirements": Incorporates general safety requirements, including ozone exposure limits.
- IEC 60335-2-65 and IEC 60335-2-109: Product-specific safety standards for UV-C air and water disinfection equipment, respectively.
- UL 867: A North American standard relevant for ozone emission testing in air cleaners.
- CIE 155, CIE 239: Guidance for the effectiveness and spectroradiometric measurement of UV-C light sources.
By adhering to IEC PAS 63313:2021, stakeholders can ensure a consistent and recognized approach to safety in the rapidly evolving field of UV-C disinfection technologies. This standard bridges current gaps, pending the development of comprehensive product-specific international safety standards.