DIN EN 2155-9:1989 Aerospace series; test methods for transparent materials for aircraft glazing; part 9: determination of haze; german version EN 2155-9:1989
1989DIN EN 2155-9:1989-11 Aerospace series; test methods for transparent materials for aircraft glazing; part 9: determination of haze; german version EN 2155-9:1989
1989DIN EN 2155-9:1989 Aerospace series; test methods for transparent materials for aircraft glazing; part 9: determination of haze; german version EN 2155-9:1989