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1. Ring:The height is 6.4mm, Upper aperture is 19.8mm, Lower aperture15.9mm。
2. Ball:Diameter is 9.5mm, Weight is(3.50±0.05)g。
3. Ball locating ring:Inner ring is 23.0mm,center is 9.55mm。
4. Test method:2 samples, parallel test
5. Support plate: 25.4mm from bottom。
6. Vessel:1000ml beaker。
7. Thermometer:Mercury-in-glass thermometer,range 30℃~180℃ Division is 0.5℃
8. Net weight:1.5kg