Holy Arc-Resistance - Is it TRUE?

I just read the following:

We are extremely proud to be part of the Fluke family,” said Tony Holliday,
managing director of Hawk IR International Ltd. “As the world leader in thermal
imaging for industrial applications, Fluke Thermography gels perfectly with our
arc-resistant infrared sightglass products. With a global network of electrical
experts and distributors, the combination will bring safe and efficient
electrical thermography to users worldwide.”

Of particular interest is the claim 'Arc-Resistant infrared sightglass.' Could ANYONE out there show me where in ANY standard the definition of Arc-Resistant Infrared Sightglass? Please specify the standard and citation. I have not been able to find a SINGLE definition for such a thing, especially in the cited standards by the particular 'sightglass' manufacturer.

The result is a direct danger to our infrared thermographers and associated technicians.

Is this something real, or is it sales and marketing lies that put people at risk? (Reference Sales and Marketing Ethics post: http://www.motordoc.com/MDMHBlog/2009/03/sales-and-marketing-ethics-in-r-world.html)