DIN 67520-1:1994 Retro-reflecting materials for traffic safety; photometric evaluation, measurement and characterization of retroreflectors and retro-reflecting sheetings
The document deals with retro-reflecting materials for traffic safety. It contains the necessary definitions and shows, how the photometric evaluation of those materials takes places using the coefficient of luminous intensity and how those materials are measured and characterized.#,,#
DIN 67520-1:1994 history
2013DIN 67520:2013 Retro-reflecting materials for traffic safety - Photometric minimum requirements for retro-reflective sheetings
2008DIN 67520:2008 Retro-reflecting materials for traffic safety - Photometric minimum requirements for retro-reflective sheetings
1994DIN 67520-1:1994 Retro-reflecting materials for traffic safety; photometric evaluation, measurement and characterization of retroreflectors and retro-reflecting sheetings