Features

What standards does the Sol-UV series comply to?

All Sol-UV simulators spectral output are certified to be compliant to FDA CFR Part 201.327, ISO 24444:2010(e) First Edition, and the International SPF Test Method (CTFASA/COLIPA/JCIA/CTFA: May 2006 for Spectral Match. With an optional filter, it can deliver JCIA UVA compliant output.

Applicable Standards

FDA: 21 CFR Part 201, Labeling and Effectiveness Testing; Sunscreen Drug Products for Over-the-Counter Human Use. § 201.327(i)(i) SPF test procedure. (1) UV source (solar simulator). (i) Emission spectrum. Federal Register / Vol. 76, No. 117 / Friday, June 17, 2011 / Rules and Regulations page 35661. ISO: 24444:2010(e), First edition 2010-11-15, Sun protection test methods - In vivo determination of the sun protection factor (SPF), Annex B, Definition of UV solar simulator output. Specifically section B.2.5 Solar simulator and filtration and section B.3.1 UV solar simulator acceptance limits. COLIPA: International Sun Protection Factor (SPF) Test Method (CTFASA/COLIPA/JCIA/CTFA: May 2006) COLIPA, 223 Rue de la Loi 223/2, Bte 2, B-1040 Brussels, Belgium (www.colipa.com).

Spatial Uniformity of Irradiance

Colipa Irradiance Response Curve

The irradiance uniformity over the work area is important to achieve and maintain. Hot spots can lead to errors in delivered dosage. The Sol-UV simulators spatial uniformity performance standard is designed to minimize hot spots and delivers less than 5% non uniformity across the entire work area. Spectral uniformity is also maintained over the work plane.

UV Simulator Housing

The Sol-UV housing provides a safe enclosure for the lamp. It is equipped with safety interlock systems to ensure operator and system safety. An integral fan(s) and filter blower provides forced air-cooling to maintain optimal lamp, optics and housing temperature. An Ozone free lamp is used to minimize exposure to ozone. The Oriel Sol-UV Simulator includes a shutter that is a rugged, single-blade shutter design specified for 1 million cycles. Real-world performance has exceeded 10 million cycles. The shutter has a minimum exposure time of 200 ms and can be controlled via a contact closure or logic level input, or a convenient push-button switch on the illuminator housing.

Temporal Stability

Temporal stability is also important in minimizing dosage errors. Oriel instruments experience in designing ultra stable power supplies provides that the output light is stable over time in order to ensure that the lamp fluctuations do not impact delivery of the erthemal dose desired. The typical drift over 24 hour is less than 2% (Max-Min) / (Max + Min)

Xenon Arc Lamp

All Sol-UV model simulators are equipped with a Xenon arc lamp with output varied using the integrated variable attenuator aperture which provides the ability to vary the output from 10- 100% of the maximum available solar constants. The combination of lamp and filters produces the characteristic COLIPA/FDA/ISO compliant output. The average lamp life during which the system maintains spectral compliance is 1000 hours. The filters utilized require no maintenance. Replacement filters in the event a filter is broken, are sold separately.

Power Supply

The highly regulated power supply provides constant electrical power to the Xenon lamp. Lamp usage can be monitored in accumulated hours from the power supply. It is important to replace the lamp at the end of its rated life to maintain appropriate spectral match. The lamp’s output and spectral match can not be assured with continued use beyond the specified lifetime (@1000 hours).

UVA Filter Kit

Sol-UV-A-F response curve in Sol-UV

Photobiology Applications

SPF testing (in-vivo or in-vitro), Photo-Toxicity Testing, Photo-Allergy Testing, Photo-Carcinogenicity Testing, Photo-Genotoxicity Testing

Maintaining An Oriel Sol-UV Solar Simulator

In order to facilitate the measurements and adjustments necessary to maintain spatial uniformity, Oriel has developed a manual uniformity measurement tool to allow rapid measurement and determination of performance. The use of these tools allows you to maintain the Oriel Sol-UV simulator within stated performance specifications.