Qualifications, Standards&Compliance
Q1: What domestic and international standards does this device comply with?
A: Our asphalt softening point tester fully complies with the following mainstream standards and supports one click switching of testing modes:
Domestic standards: GB/T 4507 "Determination of Softening Point of Petroleum Asphalt", JTG E20-2011 "Test Code for Asphalt and Asphalt Mixtures in Highway Engineering" (T 0606-2011).
International standards: ASTM D36, AASHTO T53, EN 1427.
The equipment undergoes strict metrological testing before leaving the factory and can be directly connected to national or local metrology institutes for initial inspection.
Q2: What accessories are included as standard equipment during procurement? Do I need to purchase steel balls or rings separately?
A: Our standard configuration is' ready to use '. Standard equipment includes: a complete set of high-temperature resistant beakers, standard steel balls (including positioning brackets), sample rings (for global method), high-precision temperature sensors, electronic magnetic stirrers, and pre-processing tools such as scrapers. You don't need to purchase additional basic consumables to conduct the experiment directly.
Technical Performance and Core Advantages
Q3: How are the temperature control accuracy and heating rate of the equipment ensured?
A: The core of softening point testing lies in a strict heating rate of $5.0 \ pm 0.5 $° C/min. Our equipment uses a microcomputer PID algorithm to control the core heating element, combined with a high-sensitivity PT100 temperature sensor, which can adjust the power in real time based on the temperature feedback of the medium (water or glycerol). Even at the critical point, the heating rate can be firmly stabilized within the error range required by the standard, effectively avoiding test results that may be too high or too low due to rapid or slow heating.
Q4: Is it fully automated testing or semi-automatic? How to determine the softening point?
A: We offer fully automatic intelligent models.
Traditional manual testing requires experimenters to stick to the beaker with their naked eyes, which can easily lead to human reading errors.
This device uses a photoelectric laser blocking sensor (or infrared matrix detection). When the asphalt sample is heated and falls, the steel ball drops to the bottom plate at a distance of 25.4 mm, and the laser is blocked. The system will automatically capture and record the current temperature in microseconds. The left and right samples are independently tested and the average value is automatically calculated.
Q5: Can this device test modified asphalt (high softening point)? What is the difference between testing media?
A: Absolutely possible. The device supports "dual media" mode:
Water medium: suitable for ordinary petroleum asphalt (softening point between 30℃ and 80℃).
Glycerol/silicone oil medium: suitable for modified asphalt or high viscosity asphalt (softening point between 80℃ and 160℃ or higher).
You only need to select the corresponding test medium on the color touch screen, and the system will automatically adjust the heating power curve and safety protection threshold.
Operation&Efficiency
Q6: How many samples can be tested at once? How long does it take to conduct an experiment?
A: The equipment comes standard with dual holes (testing 2 parallel specimens simultaneously), fully meeting the requirements of the standard for parallel testing.
The experimental time depends on the expected softening point of the asphalt. For example, ordinary road asphalt (with a softening point of about 50℃) can be heated at 5℃/min starting from 5℃, and the actual heating test stage only takes about 9-10 minutes.
Adding pre-processing (melting, pouring, cooling), the complete process takes about 40 minutes per step.
Q7: Can the magnetic stirring speed of the instrument be adjusted? Why is stirring important?
A: It can be adjusted and the system has a built-in standard recommended speed (usually 100-120 rpm).
Magnetic stirring can ensure extremely uniform temperature of the medium in various areas of the beaker, preventing overheating at the bottom and cooling at the top.
Our mixing system adopts stepless speed regulation and has a soft start function to ensure that the mixer does not jump or shake violently during the heating process, thereby avoiding mechanical interference with the falling steel balls.
Safety and Data Management
Q8: What are the safety measures for high-temperature testing of asphalt (especially glycerol medium)?
A: Safety is the top priority in our design. The equipment is equipped with multiple protections:
Overheating and dry burning protection: When the temperature exceeds the set safety threshold (such as 180℃) or no medium is detected in the beaker, the heating power supply will be automatically cut off.
Anti electric shock and anti scald design: using high temperature and explosion-proof glass beakers and insulated shells.
Sample abnormality alarm: If the steel ball does not fall after a certain period of heating, the system will automatically stop heating and sound an alarm to prevent the medium from boiling or the asphalt from decomposing and igniting.
Q9: How to export test data? Do you support accessing our laboratory's LIMS system?
A: Local storage: The instrument has a built-in large capacity memory that can record hundreds of sets of historical data (including test dates, sample numbers, left/right softening points, average values, etc.).
Print output: Standard (or optional) micro thermal printer, automatically prints receipts at the end of the experiment.
Information integration: Reserve RS232 or USB interfaces. We provide standard data communication protocols that make it very easy to upload data to the Laboratory Information Management System (LIMS) with just one click, achieving paperless office.
