Scope Automatic asphalt brittle point tester is based on national standards GB/T4501 "asphalt brittle point assay", the national industry standard JTJ052 "highway asphalt and asphalt testing procedures" in the T0613 "Asphalt brittle point test (Fraass Method ) "requirements set design and manufacture for Fraass brittle point determination of bituminous materials Features 1, automatic asphalt brittle point tester adopts LCD, Chinese operation interface 2, automatic asphalt brittle point tester using microcontroller automatic control experiment without human duty 3, change the asphalt brittle point tester automatically detect a variety of experimental parameters, automatic test results 4, automatic asphalt brittle point tester has a self-diagnostic function, the function prompts 5, automatic asphalt brittle point tester built-in printer output and RS-232 output interface Technical Parameters 1, Power supply: AC 220V ± 10%, 50Hz. 2, cooling: water. 3, the cooling rate: 1 â??± 0.5 â?? / min. 4, temperature range: -27 â?? ~ 25 â??. 5, the measurement error: ± 0.5 â??. 6, the sample steel Size: 41 Ã? 20 Ã? 0.15 (mm). 7, the number of samples: while test 3. 8, temperature: room temperature ~ +30 â??. 9, relative humidity: â?¤ 85%. 10, Power consumption: less than 450W