AASHTO M 249:12(2020) Standard Specification for White and Yellow Reflective Thermoplastic Striping Material (Solid Form)

AASHTO M 249:12(2020) Standard Specification for White and Yellow Reflective Thermoplastic Striping Material (Solid Form). Note 1—Arnount of yellow pigment, calcium carbonate, and inert fillers shall be at the option of the manufacturer, providing all other requirements of this specification are met. 4.2.1. The material shall be provided in either granular or block form as specified by the purchaser. 4.3. Physical Characteristics: 4.3.1. Color—The thermoplastic material after heating for 240 ± 5 mm at 218 ± 2°C (425 ± 3°F) and cooled to 25 ± 2°C (77 ± 3°F) shall meet the following: White: Daytime Luminance factor, Y (%) at 45°/0°—geometry and illuminant D65 using the 1931 CIE 2° standard observer 75. For highway use, the color shall match Federal Test Standard No. 595b, Color 17886. Yellow: Daytime Luminance factor, Y (%) at 45°/0°—geometry and illurninant D65 using the 1931 CIE 2° standard observer >=45. • For highway use, the color shall match Federal Test Standard No. 595b—Color 13538. • For airport use, the color shall comply with the requirements established by the FAA. The chromaticity and luminance factors shall be within the limits in Table 2 when determined under standard conditions: a) angle of illumination: 45 degrees; b) direction of view: perpendicular to surface (0 degrees); c) illuminant: CIE standard illuminant D65; and d) standard observer: 1931 CIE 2 degrees. Note 2—The chromaticity and luminance factors of ordinary colors and colors of retroreflecting materials shall be determined under the following standard conditions: a) angle of illumination: 45 degrees; 4.3.2. Drying Time—When applied at a temperature range of2l I ± 7°C (412.5 ± 12.5°F) and thickness of 3.2 to 4.8 mm (125 to 188 mils), the material shall set to bear traffic in not more than 2 mm when the air temperature is 10 ± 2°C (50 ± 3°F) and not more than 10 mm when the air temperature is 32 ± 2°C (90 ± 3°F). 4.3.3. Cracking Resistance at Low Temperature—After heating the thermoplastic material for 240 ± 5 mm at 218 ± 2°C (425 ± 3°F), applying to concrete blocks, and cooling —9.4 ± 1.7°C (15 ± 3°F), the material shall show no cracks. 4.3.4. Impact Resistance—After heating the thermoplastic material for 240 ± 5 mm at 218 ± 2°C (425 ± 3°F) and forming test specimens, the impact resistance shall be a minimum of 1.13 J (lOin.-lb). 4.3.5. So/lening Point—After heating the thermoplastic material tbr 240 ±...