Its function is to determine the mercaptan sulfur in jet fuel,  gasoline,  kerosene and light diesel without hydrothion,  and the content is within the range of 0.0003～0.01%(m/m).
Interferences will appear when elemental sulfur is over 0.0005%(m/m)
 

B:Technical parameters

DSHS-3C PH meter
1. Grade of instrument: 0.01
2. Measurement range  PH:(0～14.00)PH
  MV:(0～±1999)mV(automatically polarity display)
  Temp:(0～100.0)℃
3. Minimum display unit: 0.01pH, 1mV, 0.1℃
4. Compensated temperature range:(0～60)℃
5. Basic error of electronic unit :PH:±0.01pH
  MV:±0.1%FS
6. Basic error of instrument:pH:±0.02pH±１word
　　　　　　　  Temp:±0.5℃±１word
7. Incoming current of electronic unit: ≤ 2×10-12A
8. Input resistance of electronic unit:≥１×1012Ω
9. Compensated temperature error:±0.01pH
10. Repeatability error of electronic unit :PH: ≤ 0.01pH
　　　　　　　　　　　　, MV: ≥ 1mV
11. Repeatability error of instrument: ≤ 0.01pH
12. Stability of electronic unit: ±0.01pH±１word/3h
13. Overall dimension:290mm×210mm×95mm
14. Weight:1.5kg
15. Working condition:
　　  a) Ambient temperature:(５～40)℃
　　  b) Relative humidity: ≤85%
　　　c) Power supply: AC(220±22)V, (50±0.5)Hz
　　  d) No obvious vibration
　　  e) No external magnetic field interference except earth magnetic field

95-1 magnetic stirrer
1. Power supply:AC220V±10%  50Hz
2. Working mode:Continuously
3. Maximum stirring capacity:2000ml
4. Heating power: Step-less adjustable within 300W
5. Rotation speed: (20～1200)r/min
6. Electric motor torque:7.6mm/V.m
7. Temperature controlling accuracy: ±1℃
8. Temperature controlling range :room temperature +5℃～100℃
9. Timing range: (20～1200)min
10. Reversing time: (5～30)s
11. Overall dimension:230mm×150mm×130mm(The bar is not included)
Burette:10mL, scale division is 0.05mL