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
JTJ**2 Specifications and Test Methods of Bitumen and Bituminous
Mixtures for Highway Engineering. It is suitable to determine the
softening point of asphalt, tar, liquid asphalt and other types of
asphalt. It is the best choice of asphalt manufacturers, highway
and bridge construction companies, college and universities, and
research and development departments.
　It adopts microcomputer controlling technology, linear heating
and automatic stirring working mode, it can determine two samples
at the same time and it can show test results automatically. It is
convenient, efficient, and reliable. It is the desired instrument
for laboratory to determine the softening point of
asphalt.
II. Main technical specifications and parameters
　1. Power supply: AC **0V (*5%～*0%), *0 Hz
　2. Measurement range: 5.0 ℃～*0±0.5 ℃; or 5.0 ℃～*5±0.5
℃ (You should use low temperature water for measurement at 5.0
℃～ambient temperature)
　3. Temperature resolution: 0.*1 ℃
　4. Stirrer: Its speed can be continuously
adjusted
　5. Heating rate: It will be 5.0±0.5 ℃/min after 3 minutes in
the measurement state
　6. Heating power: **0 W;
　7. Cubage of beaker: ***0 ml
　8. Environment: The working temperature should be lower than *5
℃ and keep stable and without air convection
　9. Relative humidity: ≤ *5%
　*0. Total power consumption: ≤ **0 W
