QuantaDose™ UV/UVC Photochromic Test Card
Also referred to as UVC Indicator Strip, UV Germicidal Test Strips, UVC Reactive Strips, UVC Dosimeter Strips, UVC Dosimeter Cards, UVC Intensity Labels, UVC Test Strips, UV-C Test Card, UVC Indicator Card, UVC Light Test Strips, UVC Detector, UVC Test Kit, UVC Visualizer Strips, UVC Visualizer Strips and most accurately called a Photochromic UVC Measurement Test Card.
The CDC website link here recommends using direct Ultraviolet germicidal irradiation (UVGI) @ 0.5–1.8 J/cm2 in very clean environments to be effective against Influenza A (H1N1), Avian influenza A virus (H5N1), Influenza A (H7N9), A/Anhui/1/2013,Influenza A (H7N9),A/Shanghai/1/2013,MERS-CoV, SARS-CoV, H1N1, Influenza A/PR/8/34, MS2 bacteriophage with antimicrobial efficacy 99.9% for all above tested viruses.
However most people don’t live in medical staffed clean rooms, so an effective dosage under current CDC disinfection guidelines for Ultraviolet germicidal irradiation (UVGI) is 1,000 – 3,000 mJ/cm2 to ensure 99.9% deactivation when dust particles can be present.
The QuantaDose will have a noticeable color change that occurs between approximately 500-800 mJ/cm2 in the lower dose response area under direct 253.7 nm UVC light. This is on the lowest end of UVC power intensities allowed under the CDC’s recommended guidelines for using UVGI.
If you are not getting a color change displaying the word ULTRAVIOLET in the lower section of the Quantadose test card while the UV-C indicator is green the UVC light is likely not reaching the desired level of germicidal intensity required under CDC guidelines.
At an intensity of approximately 3000-5000 mJ/cm2 253.7 nm UVC the QuantaDose will achieve maximum color concentration in about 15 seconds.
It is important that BOTH QuantaDose indicators have visible color distinction when confirming effective UVGI intensity from consumer grade UVC lighting.
Nature’s Germicidal UVC Light Test That Can’t be Fooled!
Some of mankind’s best inventions have come from replicating nature, and when it comes to UVC light testing the QuantaDose™ dual wavelength UV test card was rooted in nature long before we shrunk it so it could fit in your wallet.
It’s a synthetic version of Willemite fluorescence that is used in silk-screen oils to provide a very high accuracy of UVC germicidal wavelength detection within a narrow band spectrum when using a QuantaDose™ UVC indicator and UVC light test card.
FUN WITH WILLEMITE! SHORTWAVE UVC TEST!
Willemite is a zinc silicate mineral (Zn2SiO4) and a minor ore of zinc. It is highly fluorescent (green) under shortwave ultraviolet light. It occurs in all different colors in daylight. When wavelength of 250-280nm is absorbed, its emission of green-light is very consistent because of the minerals very unique composition. Have a look at our Willemite UVC mineral test on UVC Bulb Wand Vs UVC LED Light Wand comparison images below.
WILLEMITE TEST WINNER! The portable cold cathode UV lamp wins by far even without the reflector housing that concentrates all the UVC light in one direction! It is very important to note the comparison of very effective shortwave UVC bulb technology as compared to the most popular selling UV LED germicidal products available on Amazon below. See for yourself! A rock can’t lie!
Most of the UV sterilization light wands sold provide very little shortwave UVC germicidal radiation, and in many cases no shortwave germicidal UVC at all.
The best way to instantly tell what is real shortwave germicidal UVC light or fake UVC light is to either buy a nice size chunk of Willemite from Sterling Hill Mine in Ogdensburg, N.J., or get a QuantaDose™ UVC light test card!
1st Willemite Test a UVC Light (Bulb not LED) which passes Willemite shortwave UVC test with flying green colors!
Willemite Test 2 UVC LED Light Wand Fails Willemite Shortwave UV Light Test
The Biggest Scam UVC LED Germicidal FAKE UVC Light Wand! Total Fail!
The dual feature of a UV and UV-C test card is based on the principle of molecular change when excited with high energy wavelengths of light. When the energy of a photochromic molecule absorbs energy from sunlight and ultraviolet light, the structure of the molecule changes and photons are reflected at a shorter wavelength, resulting change in the reflected light’s wavelength ultimately changes the color of the substance. When the energy from sunlight or ultraviolet UVC light is released, the molecule returns to its original structure and the color returns to its original color. This temporary change in reflected light is what makes QuantaDose™ photochromic UVC measurement cards so consumer friendly allowing them to be used over and over again.