Product details:Model ZLT-SDJ1.This test is intended in general for cores of circular cross-section having an external diameter up to and including 12.5 mm and for sector-shaped cores when it is not possible to prepare dumb- bells.
The apparatus shail be held in a refrigerator before and during the test.
The diameter of the mandrel shall be between 4 and 5 times the diameter of the test piece (see below).
The mandrel shall be uniformly rotated at a rate of one revolution in about 5 s and the number of turns shall be as specified in the following table
| Overall diameter (d) of the test piece (mm) | of turns Number |
| d≤2.5 | 10 |
| 2.5<d≤4.5 | 6 |
| 4.5<d≤6.5 | 4 |
| 6.5<d≤8.5 | 3 |
| 8.5<d | 2 |
Guangzhou Zhilitong Electromechanical Co., Ltd.

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