GD-3069 Naphthalene Crystallizing Point Tester
Standard
1.GB/T3069-2 "Test Methods for Crystallizing Point of Naphthalene".
Purpose:
It is used to determine crystallizing point of refined naphthalene, which is made by washing, rectifying or pressing distillate containing naphthalene when distill tar under high temperature, and industrial naphthalene.
Technical parameters
1. Power supply: AC 220±10%, 50Hz;
2. Heating device: a electric heater, 600 W;
3. Stirring motor:
(1) Power: 6 W;
(2) Speed: 1200 RPM;
4. Temperature controlling range: room temperature～100℃;
5. Temperature controlling accuracy: ±1℃;
6. Ambient temperature: room temperature ∼35℃;
7. Relative humidity: ≤85％;
