Safety Testing and Certification Services for Ultraviolet Radiation Devices (2023)

Ultraviolet (UV)testing and certification

In the current global situation, questions surrounding sanitation, germicidal properties, and UV devices are more in focus than ever before. Safety considerations around the use of UV lighting and radiation are critical when so many new products are entering the markets of lighting, appliances, consumer products, healthcareand more.

UVC radiation has sanitizing properties and has many uses in commercial, healthcare, and consumer settings. UVC has germicidal benefits, depending on exposure dose (based on strength, proximity and time). However, there are serious risks to UVC exposure, so safety precautions are essential.

A critical term to keep in mind when discussing UVC is containment, which refers to a set of design criteria in which people are not exposed to excessive UVC but the germs are. You will see "containment"used throughout this site in reference to the design criteria. In consumer oriented germicidal devices containment is achieved by locating the UVC source within the product enclosure. In contrast, germicidal devices intended for use by trained professionals in controlled settings may have exposed UVC sources. With these designs, product and site safeguards and intended use are considerations for evaluation and certification.

These different approaches relate to higher risks of improper use (intentional or otherwise) by consumers who may not follow (or understand) safety warnings on the product or the packaging. In contrast, trained professionals are expected to follow safety instructions and use necessary protective equipment.

NEW: Position paper on UVC-C germicidal devices

Consumer UVC germicidal devices are entering the market rapidly because of an increased demand for sanitizing and germicidal capabilities in the face of COVID-19. But are they all safe? Read our latest position paper to learn more.

Can UL Solutions help me achieve safety certification for my UVproduct?

UL Solutions offers a path to safety certification for most commercial and healthcare UVC devices, and specific types of consumer UVC devices. UVC products intended for use by trained professionals in controlled settings are evaluated based on product and site safeguards and their intended use. Trained professionals are expected to follow safety instructions and use necessary protective equipment.

UL Solutions can certify eligible UVC (180-280 nm = UVC short-wave) devices for safety using UL Standards for the product type. Where the Standard does not already include photobiological safety requirements for UVC, ACGIH, ANSI/IES RP-27 or IEC 62471 for photobiological assessments will apply.

Work with UL Solutions to help ensure that your products meet the requirements to safely use UVC light, with proper labels to warn users of the dangers of exposure and photobiological assessment to address personal injury concerns for UVC.

Remember that safety certifications address risks like electric shock, fire and personal injury but safety certifications do not address efficacy claims. (For performance claims, see UL Verify information below.)

The resources on this page can serve as a starting point to understanding the risks, containment criteria and basic certification information for various UVC product types. UL Solutions has integrated services to help you navigate the safe deployment, use and maintenance of UVC devices. Contact us to discuss the specifics of your product and path forward.

Please refer to the chart below to see which UVC products in consumer, commercial, and healthcare applications are eligible for safety certifications.

Type of UVC DeviceSample ImageEnvironmentAssessing the risksSafety Certification(s)

Home-use portable sterilizer

Marketed to clean a room in the home, with or without a timer

Safety Testing and Certification Services for Ultraviolet Radiation Devices (2)ConsumerPortable equipment with uncontained UV source. UV overexposure risk is addressed via integral safeguards;
  1. motion detection as a critical control function, and
  2. activation cycle requirements and operating time limits.
UL 8803 Outline of Investigation
IEC 62471 for photobiological assessment
Personal portable sterilizer/wand

Marketed to be handheld and moved over surfaces to sterilize

Safety Testing and Certification Services for Ultraviolet Radiation Devices (3)ConsumerUVC is NOT contained — it may produce ozone. Device may be used by untrained persons unfamiliar with the risks involved.

There is a risk that people and pets could accidentally be exposed to UVC and be injured, and ozone may be emitted. The exposure dose to people can be far above acceptable levels and can cause injury. Integral timers or proximity and orientation sensors pose concerns with accuracy and reliability of these safeguards as well as opportunities for misuse or bypass.

(Video) How to know if a UVC device will be safe and effective

Stationary (non-handheld) products for use in an unoccupied area with specific safeguards may have a path to safety certification.

NOT eligible for certification for consumer use; for medical and professional applications, contact UL Solutions to discuss.
Home-use air cleaners with internal (contained) UVC

Marketed to homes and offices

Safety Testing and Certification Services for Ultraviolet Radiation Devices (4)ConsumerUVC is contained

The UVC source is inside the product enclosure and a safeguard disables the UVC when an access door is opened.

UL 507 for electrical investigation; standard includes personal injury requirements for UVC based on ANSI RP-27 for photobiological assessment.
Portable UVC sterilization box

Marketed to clean cell phones, small personal devices

Safety Testing and Certification Services for Ultraviolet Radiation Devices (5)Consumer and CommercialUVC is contained

The UVC source is inside the enclosure; opening the door will disable the UV source. Testing would ensure that any UV “leakage” will be within safe exposure dose limits.

UL 73 for electrical investigation; standard includes personal injury requirements for UVC based on ANSI RP-27 for photobiological assessment.
Upper room (UVGI)

Mounted out of easy reach, typically 2.3 m (7 feet) from floor

Safety Testing and Certification Services for Ultraviolet Radiation Devices (6)CommercialPermanently mounted, i.e., fixed, equipment intended to be installed and operated in non-residential locations. UVC containment is achieved based on product design features, plus site safeguards.UL 8802 Outline of Investigation

IEC 62471 for photobiological assessment

Commercial/industrial heating and ventilation

May also be found in home settings

Safety Testing and Certification Services for Ultraviolet Radiation Devices (7)CommercialUVC is contained inside the air duct and not visible

Access is restricted to qualified personnel during installation and service. The design also includes other product safeguards such as ON/OFF switch and interlock switch

UL 1598 (or UL 153) and UL 1995 for electrical investigation; UL 1995 includes personal injury requirements for UVC based on ANSI/IES RP-27 for photobiological assessment
Water treatment plants

UVC disinfects the water as an alternative to chlorination

Safety Testing and Certification Services for Ultraviolet Radiation Devices (8)CommercialUVC is contained inside a water vessel and not visible

Access is restricted to qualified personnel during installation and service.

UL 979 for water treatment equipment

ANSI RP-27 for photobiological assessment

Equipment sterilization

Sterilizing robots

Used in hospital operating rooms as a secondary tool for disinfection

Safety Testing and Certification Services for Ultraviolet Radiation Devices (9)

Safety Testing and Certification Services for Ultraviolet Radiation Devices (10)

(Video) How Ultraviolet Light Could Help Stop The Spread Of Coronavirus

Healthcare and CommercialUVC containment is achieved by limiting access to the space so people are not present during disinfection.

In addition, the equipment includes reliable safeguards and is operated by staff with training for its proper use.

In healthcare facility and laboratory settings – UL 61010 for electrical investigation; the standard references IEC 62471 for photobiological assessment to address personal injury concerns for UVC.

In commercial settings – UL 73 for electrical investigation; standard includes personal injury requirements for UVC based on ANSI/IES RP-27 for photobiological assessment.

Germicidal systems

(may have regular lights inaddition to UV emitters)

Safety Testing and Certification Services for Ultraviolet Radiation Devices (11)Healthcare and CommercialPermanently mounted, i.e., fixed, equipment intended to be installed and operated in non-residential locations. UVC containment is achieved based on product safeguards, trained staff and site safeguards.UL 8802 Outline of Investigation

IEC 62471 for photobiological assessment

UV Lamps and Components

(Ballasts, LED drivers, UV light sources, Controls & Sensors)

Safety Testing and Certification Services for Ultraviolet Radiation Devices (12)ComponentsComponents for use in UVC equipment and germicidal systems; contact UL Solutions to discuss the specific use and design as well as the intended operation, e.g., within luminaires or only within equipment designed specifically for germicidal applications.Various, as applicable

Can UL Solutionshelp me measure UVperformance?

All products are eligible for performance testing such as photobiologic, photometric and ingress testing. Performance can be assessed with or without a safety certification and will not include a UL Mark. Contact us to discuss specific performance measurements and risk categories.

UL Solutions also offers the UL Verify program in which marketing claims made by a brand about their products, processes, systems or facilities are tested and verified by UL Solutions as credible.

Nonmedical UVC products

The use of UVC devices in schools, offices, hospitality/entertainment, food services, airports/transportation/car services and many other locations are a key focus for building owners, facilities managers and administrators alike.

Anyone involved with germicidal and disinfecting products should be interested in the safe use of UVC devices related to lighting, HVAC, appliances and other product categories. From functional safety to predictive modeling and robotic technology, UL Solutions can help you navigate the use of UVC in enclosed products, UVGI applications, open air technology and more.

(Video) Can Ultraviolet UV Light Sanitize CoronaVirus | UV Sterilizer Experiment

Personal hygiene, healthcare and medical products

The use of UVC devices in hospitals and healthcare settings, research laboratories and other locations are a key focus for facility and lab managers, EHS and administrators alike. The use of UVC devices for healthcare and personal hygiene include the home environment as well.

Anyone involved with germicidal and disinfecting products should be interested in the safe use of UVC devices related to medical, healthcare, and personal health and hygiene. From functional safety to predictive modeling and robotic technology, UL Solutions can help you navigate the use of UVC in enclosed products, UVGI applications, open air technology and more.

“[Our UVC] project was a great example of the cooperative and collaborative relationship our two organizations have built. My compliments to UL for taking the lead on this important issue.”

  • Reed Bradford
  • Cooper Lighting Solutions
(Video) Ultraviolet (UV) Can Kill Bacteria & Viruses – Learn The Basics
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FAQs

What is UV certificate? ›

The UV STANDARD 801 label is an independent testing and certification system with which textiles can be tested, certified and labelled according to how well they protect against UV rays.

Which test is performed for UV protection? ›

Xenon arc testing is mainly used to assess color/appearance changes over time as a result of indoor/outdoor exposure to UV light either directly from the sun or through glass (indoor conditions).

What is UVC testing? ›

OVERVIEW - The Atlas UVCTest™ is designed to test the durability of materials exposed to UVC radiation centered at 254 nm. It is based on the popular UVTest fluorescent/UV platform, with special modifications for safety and reliability.

What are the 3 types of UVR? ›

Types of UV Radiation Rays

UV radiation is classified into three primary types: ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC), based on their wavelengths.

What is ASME UV stamp? ›

ASME UV Stamp

Certifies Allied Valve Inc. is qualified and approved to assemble Pressure Relief Valves (PRV) for use in Section VIII applications including all uses outside of boilers and pressure vessels.

What does ASME Section 1 cover? ›

ASME Section I covers steam applications on fired vessels (boilers).

How do you test UV stability? ›

Another way to test UV stability is using xenon arc weathering. Xenon arc testers generate visible, UV, and infrared light, allowing them to closely replicate natural sunlight. Using different filters over the lights adjusts the heat and levels of radiation to achieve the desired effect.

How do you test a UV protection lens? ›

Most sunglasses today have UV protection embedded in the lens rather than coated over it, and most reputable brands list UV protection on their label. Look for a label that says “100% protection against both UVA and UVB” or “100% protection against UV 400.”

How is UV stability measured? ›

In order to test the UV stability of polymers several weathering test methods have been developed using artificial light sources to provide accelerated test procedures. These test methods are used to predict the UV stability of a product over a number of years.

Which UV ray is most harmful? ›

Short-wavelength UVC is the most damaging type of UV radiation.

Which type of UV radiation is least harmful? ›

Consistent, unprotected exposure to any source of UV radiation can be harmful. UVC rays penetrate the body the least, mostly effecting weak points such as the eyes.

Can you feel UV radiation on your skin? ›

But you can't see or feel the sun's UV radiation. UV can reach you directly from the sun. It can also be reflected off different surfaces and scattered by particles in the air. Your senses cannot detect UV radiation, so you won't notice it is all around you and you won't notice any skin damage until it has been done.

Is there a difference between UV light and blacklight? ›

In a nutshell, there isn't quite a difference, but a misunderstanding of the terms. Black light is nothing but UVA light, while UV light is basically composed out of UVA, UVB and UVC. So in other words, black light is UV light(450-100nm), covering the 400-320nm spectrum.

Are UVC rays harmful? ›

A: UVC radiation can cause severe burns of the skin and eye injuries (photokeratitis). Avoid direct skin exposure to UVC radiation and never look directly into a UVC light source, even briefly. Skin burns and eye injuries from UVC exposure usually resolve within a week with no known long-term damage.

How do you measure UV light intensity? ›

The Quantification of UV. There are two common ways to measure UV radiation: compare the amount of UV energy relative to the light emitted by a source, or measure the absolute amount of UV energy an object receives over its surface.

What does ASME certification mean? ›

If a company is ASME certified, it means it adjusted its processes to some of the highest safety and quality standards in the world. ASME-certified products are reliable and perform consistently, comply with government regulations in more than 100 countries, and are more easily shipped internationally.

What is ASME stamp certified? ›

U Stamp Certification

This certification is denoted by the 'U Stamp' for pressure vessels. Established in 1911, ASME formed necessary regulations to govern and control the manufacturing of pressure vessels & steam boilers to reduce the risk of any mishaps and explosions on factory premises.

Why is ASME stamp required? ›

Why it's so important: 1) Safety: Many pressure vessels house contents that are potentially hazardous materials at high pressures. Keeping those contents secure should be a top priority for the safety of everyone near these vessels. An ASME stamp ensures that the tank holding these contents was built properly.

What does ASME Section 2 cover? ›

This part contains the individual specifications for ferrous materials that are allowed in the construction of pressure vessels and piping designed according to the ASME BPVC. Part A covers all forms of ferrous material products like wrought, castings, forgings, plates, piping valves, bolting, etc.

What is ASME Section XIII? ›

This Section provides rules for the overpressure protection of pressurized equipment such as boilers, pressure vessels, and piping systems.

What is ASME Section IX? ›

ASME section IX is a part of the ASME boiler pressure vessel code that contains the rules for qualifying welding procedures and welders. It is also used to qualify welders and procedures for welding to ASME B31.

What type of light is UV? ›

Ultraviolet (UV) light falls in the range of the EM spectrum between visible light and X-rays. It has frequencies of about 8 × 1014 to 3 × 1016 cycles per second, or hertz (Hz), and wavelengths of about 380 nanometers (1.5 × 105 inches) to about 10 nm (4 × 107 inches).

What is UV light made of? ›

A UV lamp is different from a regular lamp because it's typically made of quartz instead of glass. Inside, there is an inert gas mixed with mercury. When the lamp is plugged in, electricity reacts with the mercury, and the lamp produces UV light. The type of UV light emitted depends on the pressure inside the lamp.

Is UV protection the same as blue light protection? ›

Is UV Protection the Same As Blue Light Protection? In most cases, yes. Choose sunglasses that offer 100% UV protection and they will also absorb most of the harmful blue light, also known as HEV rays.

How do I know if my sunglasses are UV protected? ›

How to tell if a pair of sunglasses offers UV protection. You can tell whether sunglasses offer UV protection by checking if the frame features the CE or UV400 mark. The category for the lens shade (0-4) should also be marked on the frame, for example, 'C3' followed by 'CE'.

Do normal glasses have UV protection? ›

Well, yes – but you might not realise that your normal, everyday glasses can help protect you from UV light too.

What is the unit of measurement for UV light? ›

The intensity of UV radiation is measured in the units of milliwatts per square centimetre (mW/cm2) which is energy per square centimetre received per second. Also, it is measured in the units of millijoules per square centimetre (mJ/cm2), which is energy received per unit area in a given time.

How is ultraviolet radiation calculated? ›

Use the instrument's sensitivity to convert the output voltage to W/m², for instance, 0.4 Volt, which is closely linked to an erythemal radiation value of 0.0675 W/m². That then needs to be multiplied by a factor of 40 m²/W to get the UVI value, in this case, 2.7.

What is the UV coating? ›

UV coating, is a surface treatment process where liquid UV ink is applied to a printed paper surface and cured on a special machine (autoprint fine coat series) using ultraviolet light. The coating hardens or cures when it is exposed to the ultraviolet radiation.

What is UV finish for wood? ›

UV coating is a type of wood finish that involves the surface being cured by ultraviolet radiation. Unlike typical wood finishing processes that use heavy amounts of harmful solvents and VOCS, 100% UV radiation coating uses little to no VOCs in the process.

What is UV coating used for? ›

UV Coating is a tough clear-coat applied over printed materials to 1) protect against scratches, tears and fingerprints and 2) enhance the brilliance of the ink colors.

What is UV coating on plastic? ›

UV coating is the application of a clear or colored coating compound to plastic parts that is then cured by ultraviolet (UV) light. The coating can be applied over an entire product, a single side or specific spots.

How do you test UV coating? ›

There are only two ways to test the UV protection of sunglasses. The first is to visit your local optician to have them test the lenses for you (they may or may not be so helpful). The second is to test them yourself with a UV light flashlight at home!

Is UV coating toxic? ›

A UV-cured coating won't release harmful chemicals. It also provides longer protection for the wood. This type of coating can be used for a variety of products, not just wood. You can use it for metal, glass, printers, concrete, fabric and paper.

Is UV coating flammable? ›

No work-in-process and reduced quality costs. Cleaner - No volatile organic compounds (VOCs), no hazardous air pollutants (HAPs), or non-flammable.

Is UV coating waterproof? ›

Is UV coating waterproof? No, UV coating is not waterproof, but it is water resistant. UV coating shouldn't be confused with other types of paper finishing processes, such as aqueous coating and lamination.

What is factory UV finish? ›

UV-cured urethane (or simply 'UV urethane') is the most common type of finish for factory-finished ('prefinished') wood flooring. The finish is applied to the wood at the factory and then hardened via a chemical reaction triggered by ultra violet (UV) light.

What is UV lacquer? ›

UV lacquer is a hard wearing layer sits on top of wood surface that cured by high energy UV rays. In contrast to UV oil, it does not penetrate into wood, instead, it bonds to the surface of the wood, and form a layer on top.

Is UV coating environmentally friendly? ›

Environmental Benefits

UV powder is an environmentally friendly coating, containing no solvents, VOCs, HAPs, irritating monomers and oligomers. It is safe to use and can be reclaimed and recycled.

Is UV coating water based? ›

Water-based UV coatings are an industry breakthrough. This technology allows us to match or create any custom color, without limitations to shade. This allows for more color and coating options for our clients. Water-based UV coatings are also excellent when it comes to coverage and light stability.

What type of light is UV? ›

Ultraviolet (UV) light falls in the range of the EM spectrum between visible light and X-rays. It has frequencies of about 8 × 1014 to 3 × 1016 cycles per second, or hertz (Hz), and wavelengths of about 380 nanometers (1.5 × 105 inches) to about 10 nm (4 × 107 inches).

What is UV treatment on glasses? ›

Ultraviolet (UV) treatment

Another beneficial lens treatment is an invisible dye that blocks ultraviolet (UV) light. Just as sunscreen keeps the sun's UV rays from harming your skin, UV-protective treatments for eyeglass lenses block those same rays from damaging your eyes.

What is the full form of UV? ›

Ultraviolet (UV) Radiation.

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