AS NZS 1067.2:2016 pdf free.Eye and face protection—Sunglasses and fashion spectacles Part 2: Test methods. 7.2.1.3 Test report Record LF as the uniformity of luminous transmittance. 7.2.2 Mounted filters and unmounted filters covering both eyes 7.2.2.1 Test method Locate the defined reference points defined in Iso 4007. Define two circular areas around the reference points with diameter d, calculated as...
BS EN ISO 12312-2:2015 pdf free
BS EN ISO 12312-2:2015 pdf free.EYE AND FACE PROTECTION - SUNGLASSES AND RELATED EYEWEAR - PART 2: FILTERS FOR DIRECT OBSERVATION OF THE SUN. This part of ISO 12312 applies to all afocal (piano power) products intended for direct observation of the sun, such as solar eclipse viewing. Information on the use of filters for direct observation of the sun...