CSN EN ISO 18526-2

CSN EN ISO 18526-2 This document specifies the reference test methods for determining the physical optical properties of personal eye and face protectors. This document does not apply to any eye and face protection products for which the requirements standard(s) specifies other test methods. Other test methods can be used provided they have been shown to be equivalent and include uncertainties of measurement no greater than those required of the reference method.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.