16 CFR Table 3
Minimum Acceptable Values for the Quantity A Defined in the Retroreflective Tire and Rim Test Procedure
February 12, 2021
Open Table
| Observation angle (degrees) | Entrance angle (degrees) | Minimum acceptable value of A | |
|---|---|---|---|
| Meters | Feet | ||
| 0.2 | −4 | 2.2 | 7.25 |
| .2 | 20 | 1.9 | 6.27 |
| .2 | 40 | 1.3 | 4.29 |
| 1.5 | −4 | .22 | .73 |
| 1.5 | 20 | .19 | .63 |
| 1.5 | 40 | .13 | .43 |
[43 FR 60034, Dec. 22, 1978, as amended at 45 FR 82631, Dec. 16, 1980; 46 FR 3204, Jan. 14, 1981]
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