Authority: IC 9-21-9-5
Affected: IC 9-21-9
Sec. 3.
Color and reflectivity.
TABLE 1- MINIMUM REFLECTIVE INTENSITY VALUES, R*
Divergence Angle, deg | Incidence Angle, deg | Reflective Intensity, R |
0.2 | 0 | 10 |
0.2 | 15 | 7 |
0.2 | 30 | 5 |
0.5 | 0 | 5 |
0.5 | 15 | 4 |
0.5 | 30 | 2 |
* [Measurements shall be conducted in accordance with photometric testing procedures for reflex-reflectors as specified in Society of Automotive Engineers Standard, SAE J594, Reflex Reflectors, and using 50, ± 5 sq. in. (322.6, ± 32.3 sq. centimeters) of reflective material. The maximum dimension of the test surface shall not be greater than 1.5 times the minimum dimension. The Reflective Intensity (R) is computed from the equation.]
where
R = reflective intensity, candlepower per incident foot-candle per square foot
Lr = illumination incident upon receiver at observation point, foot-candles
Ls = illumination incident upon a plane perpendicular to the incident ray at the test specimen position, foot-candles
d = distance from test specimen to source of illumination (100 ft. as specified in SAE J594), feet
A = area of test surface, square feet
205 IAC 1-5-3
NOTE: Transferred from the Office of Traffic Safety ( 150 IAC 1-5-3) to the Indiana Criminal Justice Institute ( 205 IAC 1-5-3) by P.L. 39-1993, SECTION 12, effective July 1, 1993.