Why should MasterWeld® welding glass be used when observing the welding arc?
MasterWeld® welding glass provides protection against harmful ultraviolet (UV-) and infrared (IR-) radiation. The UV radiation causes chemical changes of the cornea on the retina. Already the UV radiation with a wavelength below 320 nm causes chemical changes in the cornea, the eye lens and on the retina. Radiation below 320 nm causes conjunctivitis, while long-wave UV radiation in the eye produces fluorescence that results in decreased visiual performance. In the range of 300 nm and shorter wavelengths, the UV radiation endangers the skin and kills bacteria. The most harmful UV radiation for people is in the range of wavelengths around 260 nm, because the UV radiation is absorbed by nucleonic acids in the cell nucleus. The cells die and neoplasms are formed. The UV radiation endangers the skin down to the depth of 0.6 mm, the eyelids and eye surface and then cell tissue swells. The IR radiation causes thermal changes in the cornea, in the eye lens and on the retina and it causes cataracts. Our SCS Welding Protective Glasses provide sufficient protection against the above mentioned harmful radiation and allow safe vision with 560 to 565 nm wavelengths in bright light, exactly within the limits of the maximum sensitivity of the human eye.
MasterWeld® welding lenses are made in Europe according to 0196 CE and DIN standards.
Each MasterWeld® welding protection glass is marked with an identification mark. It includes the protection level, the manufacturer`s mark, the class of the dioptric effect (class 1) and the trade mark DIN, e.g. 10 SCS 1 DIN (10 protection level, MasterWeld® manufacturer mark MasterWeld®, 1 class of the dioptric effect, DIN mark DIN).
Standard Sizes available
MasterWeld® Welding protection glass is available in the following sizes and shades:
- In rectangular lenses, Standard dimensions we can offer are 105mm x 50 mm, 108mm x 51 mm, 110mm x 60 mm, 110mm x 90mm from shade 2 up to shade 15.
- In round lenses we can offer from 30mm to 75mm diameter.
MasterWeld® Welding protection glass can also be manufactured in any bespoke size up to and including up to 1050mm x 900 mm from shade 2 up to shade 15.
With shaded welding glass from shade 2 to 13, the glass thickness is around 2.7mm thick. With shade 14 and 15 have the glass thickness is around 3.0 +/- 0.3 mm.
MasterWeld® Welding protection glass can also be supplied with a heat resistant reflective coating for high amperage welding applications, call us free on 0800 975 9710 or email us via the contact page to find out more.