UPF TestIng | Ultraviolet Protection Factor Testing for Clothing And Fabrics

Ultraviolet Protection Factor (UPF) Test Includes First 2 Samples

Solar Light performs accurate UPF testing for clothing and fabrics to all major worldwide standards: AATCC 183, BS EN 13758-1, GBT18830-2009, and NZS 4399 – please advise which you need, and we will perform the testing accordingly. We can include a UPF Certification Report optionally which details the specific measurements of your samples, as well as equipment used in the testing, and all relevant data points. (Please note: Some of the standards require laundering the article prior to testing.) Typical turnaround is only a few days after we receive the prepared samples to test.

UPF Testing costs $250.00 and includes the first 2 samples.

**Additional samples cost $75.00 each**

A UPF Certificate Report covering all samples tested is optional, for $75.00 additional. Please select from the Testing Options below. Preferred sample size is 5×5 inches (or 13 x 13 cm). All testing is performed dry, and any samples sent should be pre-laundered if the UPF standard selected calls for it.



Each Additional Sample $75


UPF Certificate Report (covers all samples). See TEST SAMPLES tab below for examples.


If you want your samples mailed back upon completion, select Yes. There will be a $25 handling fee added and you will be able to ship via your UPS or Fedex account at checkout.



What is UPF Testing?
Ultraviolet Protection Factor (UPF) is a spectral transmission analysis which can quantify exactly how much UV radiation permeates materials. The UPF Rating Scale is between 15 and 50:

15-24 is good
is very good
or higher is

For example, a shirt with a UPF rating of 15 means that 1/15th of the sun’s UV radiation can reach the wearer’s skin, while a shirt with a UPF rating of 50 means that only 1/50th of the sun’s UV radiation can reach the wearer’s skin. Another way to perceive this rating is a UPF of 20 (allowing 1/20th of UV through) is equivalent to blocking 95%.  A UPF of 40 blocks 97.5% and a UPF of 50 blocks 98%.

UPF ratings are becoming more prevalent in the civilian clothing industry as people seek alternatives to sunscreen lotions, though it should be noted that UPF gauges a fabric’s effectiveness against both UVA and UVB light, while sunscreen’s SPF number pertains only to a sunscreen’s effectiveness against UVB rays (the sunburn-causing segment of the ultraviolet spectrum.) High-risk groups with an elevated need for high UPF-rated clothing include fair skinned, sun-sensitive people, children, and people who spend extended time at high elevation, equatorial regions, and near reflective surfaces such as snow and water.

Online Ordering:

1. Select from the options above and add to cart.

2. Complete your order. During checkout process, should you want your sample(s) returned, you will have the option of using your own shipping account for return shipping, or our shipping carriers.

3. View instructions for preparing your order for shipment to us [HERE].

Manual Ordering:

To send Materials and Equipment to Solar Light Company for Testing:

1. Complete the necessary form and mark box “Attn: Materials Testing Laboratory”.

2. Issue a purchase order or include payment information.

3. Provide specific shipping instructions for the return shipment if applicable, and email PO with Return Form to Solar Light Company

4. Enclose a copy of the completed form in the package with the sample(s).

Ship prepaid via UPS or FedEx, fully insured to:

Solar Light Company, LLC
Attn: Materials Testing Laboratory
100 East Glenside Avenue
Glenside, PA. 19038 USA

 UPF Standards

  • AATCC TM183-2010 “Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation through Fabrics”
  • ASTM D6544 “UPF Standard Practice for Preparation of Textiles Prior to Ultraviolet (UV) Transmission Testing”
  • ASTM D6603 “Standard Specification for Labeling of UV-Protective Textiles1″
  • AS_NZS_4399 “Sun protective clothing— Evaluation and classification”
  • BS EN 13758-1 “Textiles – Solar UV protective properties – Method of test for apparel fabrics”
  • GBT18830-2009 “Textiles – Evaluation for solar ultraviolet protective properties”

This field can't be Empty

Test and Measurement Equipment

Light Sources
Solar Light Model 16S-150-003 Short Arc Xenon UV Solar Simulators
Solar Light Model 16S-300-003 Short Arc Xenon UV Solar Simulators

UVA Fluorescent lamps
UVA+B Fluorescent lamps
UVC Fluorescent lamps
High Intensity Visible Fluorescent lamps

Solar Light Model LS-1000 6″ Air Mass
Solar Light Model LS-1000 6″ UV Solar Simulator

Solar Light Model PMA2100 dual channel data-logging radiometer
Solar Light Model PMA2107 UVA+B Sensors
Solar Light Model PMA2110 UVA Sensors
Solar Light Model PMA2144 Class II Pyranometer

X-rite Color Eye 7000A Spectrophotometer

Optronic Laboratories Model 750 Double Grating Monochromator System
Optronic Laboratories Model 740 A/D Double Grating Monochromator
Optronic Laboratories Model 730A Radiometer
Optronic Laboratories Model 740-1C Controller
Optronic Laboratories Model OL 220M Quartz-halogen lamp
Optronic Laboratories Model 65DS Precision Current Source

Solar Light 290SPF UV Transmission Analyzer

Controlled Environmental Test Equipment
Stability Environments Controlled Temperature, Humidity & Light Walk-in Chamber
Stability Environments 33 cu ft Controlled Temperature & Humidity Reach-in Chamber
Tenny Environmental Chamber