I. Summary
　The instrument is designed and made as per the National Standard
of Peoples Republic of China GB/T***7 Test Methods for Softening
Point of Asphalt, and T***6 Asphalt Softening Point Test (Ring and
Ball Methods) in the Industry Standard of Peoples Republic of
China. It is suitable to determine the softening point of highway
asphalt, coal pitch, liquid asphalt and other types of asphalt,
etc. It is the best choice of asphalt manufacture companies,
highway and bridge construction companies, colleges and
universities, and scientific research institutes.
　It adopts computer for controlling, electron photo-electricity
for measurement, LCD for indication and Micro-printer for printing
test data. It also has the characteristics of linear heating
temperature, even stirring speed and it can make test for two
samples at the same time and determine softening point of samples
automatically. It is automatic, convenient and reliable, so it is
an intelligent instrument for measuring softening point of asphalt
sample.
II. Main technical specifications and parameters
　1. Power supply: AC **0V (*5%～**0%), *0 Hz;
　2. Measurement range:
　 (1) For asphalt, the softening point of which is under *0 ℃,
you can take distilled water as heating medium : *5 ℃～**0
℃
　(2) For asphalt, the softening point of which is over *0
℃, you should take glycerin as heating medium. **2 ℃～***0
℃
　3. Temperature resolution: 0.*1 ℃
　4. Stirrer: the stirring speed can be adjusted
continuously.
　5. Heating rate: it will be adjusted to 5.0±0.5 ℃/ min
automatically after three minutes
　6. Test result: It uses the LCD to show it and the printer to
print it.
　7. Heating power: **0 W
　8. Computer communication interface: RS**2C communication
interface
　9. Cubage of beaker: ***0 ml
　*0. Ambient temperature: The temperature should be less than *5
℃ and keep stable. There should not have any air
draft.
　*1. Relative humidity: ≤*5%
　*2. Total power consumption: ≤**0 W
