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RPM Model 35
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Marker Body
The body of the marker shall be solid with no hollow areas and constructed of an impact-resistant thermoplastic alloy that conforms to the following properties:
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| Property |
Results
Units |
ASTM Test Method |
| Specific Gravity (min) |
1.19 |
D792 |
| Hardness Rockwell M (min) |
20 |
D785 |
| Gardner Impact Strength (2" dia. x .125" sample) |
120 in-lb |
N/A |
| Tensile Strength @ Yield |
2,500 lbf/sq. in. |
D638 |
| Flexural Strength |
5,500 lbf/sq. in. |
D790 |
| Flexural Modulus |
275,000 |
D790 | |
Halftrack Model 26
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Marker Base
The base of the marker shall be solid, with no hollows, and have grooves that constitute a minimum of 75% of the base area that increase the bonding surface by a minimum of 25%. |
Marker Body and Reflective Colors:
Type Y-2 Yellow 2-Way
Type Y-1 Yellow 1-Way
Type W-2 White 2-Way
Type W-1 White 1-Way
Additional colors are available by special order. |
Halftrack Model 25
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Reflective Performance
Reflective tape shall be affixed along the front and/or rear faces of the marker. The tape shall be a cube-corner micro prism retro reflective material with the following minimum optical performance. |
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Initial Brightness |
| Marker |
Model# |
Color |
SI |
CIL |
| RPM |
35 |
White |
3.5 |
320 |
| RPM |
35 |
Yellow |
2.5 |
220 |
| Halftrack |
25, 26 |
White |
3.5 |
320 |
| Halftrack |
25, 26 |
Yellow |
2.5 |
220 |
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*Typical Initial Specific Intensity or Coefficient of Luminous Intensity at 0.2 obs angle and -4.0 entrance angle (in cd/ftc or mcd/lux) | |
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