UNE-EN 2591-6101:2001 Aerospace series - Elements of electrical and optical connection - Test methods - Part 6101: Optical elements - Visual examination. (Endorsed by AENOR in April of 2002.)
2002UNE-EN 2591-6101:2001 Aerospace series - Elements of electrical and optical connection - Test methods - Part 6101: Optical elements - Visual examination. (Endorsed by AENOR in April of 2002.)