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This instrument uses the wire drawing method to test the annealing point and strain point of glass. It refers to the standards ASTM C336, SJT11039-1996 Electronic Glass Annealing Point and Strain Point Testing Method, and JC/T752-1996 Quartz Glass Annealing Point Testing Method.
2. Technical Parameter
| Parameter Item | Specification |
| Maximum Temperature | 1000 °C |
| Accuracy | < 1% |
| Temperature Control | PID-controlled auto-control system |
| Temperature Deviation | ±1 °C |