where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

1048 views
Technical Discussions
Jean-Claude Schwartz
Jean-Claude Schwartz
06:18 Mar-20-2008
UV - Black light Safety Glasses

We are looking to replace our UV Black light Safety glasses.
We use Labino lamps which can produce 8,500 µw/cm2 and therefore consider these glasses very important from a safety point of view.
Having contacted several companies regarding the supply of glasses (for a wavelength range of 245-365nm) there appears to be a grey area with regards to which glasses are best suited.
Does anyone have any experience regarding this or perhaps some proposals as to the best type of glasses available on the market


    
 
 
Michel
NDT Inspector,
consultant, Canada, Joined Sep 2006, 834

Michel

NDT Inspector,
consultant,
Canada,
Joined Sep 2006
834
00:20 Mar-21-2008
Re: UV - Black light Safety Glasses
----------- Start Original Message -----------
: We are looking to replace our UV Black light Safety glasses.
: We use Labino lamps which can produce 8,500 µw/cm2 and therefore consider these glasses very important from a safety point of view.
: Having contacted several companies regarding the supply of glasses (for a wavelength range of 245-365nm) there appears to be a grey area with regards to which glasses are best suited.
: Does anyone have any experience regarding this or perhaps some proposals as to the best type of glasses available on the market
------------ End Original Message ------------

Hi Jean-Claude,

I'm not sure to what you are getting at! My safety glasses are UV filtered. It can be done when you order your prescription glasses from an eye clinic. I've tested them by placing them between a black light and a light meter. The meter rear zero. So it's a good way to see if you got what you paid for.

As for the Labino, I think you are confusing the wavelength of the black light with the intensity of the light itself. The UV protection in glasses is to cut out the UV radiation, it will not cut down the intensity of the light.

I don't know if it still holds true, I had my PT-MT courses 17 years ago but I was told then that black light are only dangerous if you stare into them and only if the filter is cracked. Otherwise all you will experience is a little discomfort because of the way the UV radiation interact with the liquid inside your eye.

Having said all that; should you wear UV filtered eye protection? Yes. But will the Labino lamp react any differently than the black light that are currently in use at most places still? No.

In closing, remember that UV radiation is radiation and will behave in the same way as any other radiation (X-ray and gamma). Its intensity will decrease to the square of the distance. Speaking of safety, if you work with someone else, it should be mentionned during your prejob briefing. Not to point these lamp in the others face.

Cheerios,
Michel




    
 
 

Product Spotlight

Aerospace Systems - Automated Ultrasonic Inspection

USL are specialists in the design and manufacture of turnkey ultrasonic inspection systems for aer
...
ospace applications. From monolithic composites to complex honeycomb structures. This video shows just a few examples of what is possible, find out more at: www.ultrasonic-sciences.co.uk
>

UCI Hardness Tester NOVOTEST T-U2

UCI hardness tester NOVOTEST T-U2 is is used for non-destructive hardness testing of: metals and
...
alloys by scales of hardness: Rockwell (HRC), Brinell (HB), Vickers (HV); non-ferrous metals, alloys of iron etc., and using five additional scales for calibration; with tensile strength (Rm) scale determines the tensile strength of carbon steel pearlitic products by automatic recalculation from Brinell (HB) hardness scale.
>

Compact NDT inspection-heads for measurements with active thermography

The compact inspection head is suitable for thermographic ndt tasks. The uncooled infrared camera
...
is specially developed for NDI-tasks and offers a thermal sensitivity until now known only from thermal imagers with cooled detector. All required components and functions are integrated into the inspection-head. You will only need an ethernet cable to connect the sensor with the evaluation system.
>

Lyft™: Pulsed Eddy Current Reinvented

PEC Reinvented—CUI Programs Redefined Corrosion under insulation (CUI) is possibly the greatest u
...
nresolved asset integrity problem in the industry. Current methods for measuring wall thickness with liftoff, without removing insulation, all have severe limitations. Eddyfi introduces Lyft — a reinvented, high-performance pulsed eddy current (PEC) solution. The patent- pending system features a state-of-the-art portable instrument, real- time C-scan imaging, fast data acquisition with grid-mapping and dynamic scanning modes, and flexibility with long cables. It can also scan through thick metal and insulation, as well as aluminum, stainless steel, and galvanized steel weather jackets. Who else but Eddyfi to reinvent an eddy current technique and redefine CUI programs. Got Lyft?
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window