Base volumetric flask
A technology of volumetric flasks and measuring tubes, which is applied in the field of glassware, can solve the problems of volumetric flasks falling down, damage, poor stability, and high center of gravity, and achieve the effect of low center of gravity, good stability, and simple structure
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[0012] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.
[0013] figure 1 The shown 25ml calibrated base volumetric flask is a transparent body made of glass, including a base 1 , a main body bottle 2 , a measuring tube 3 and a bottle stopper 4 . The main body bottle 2 is shaped like a vertically placed egg, and the curved surface at the large end is connected downward to the truncated conical base 1 to form a vertical structure. Tapered hole and bottle stopper 4 are sealed together, and measuring tube 3 of the present invention is an elongated tube structure with a diameter of Φ7mm and a tube length of 40mm. The waist of the measuring tube 3 is provided with a scale line 3.1 engraved with a standard load, and the capacity from the scale line 3.1 of the measuring tube 3 to the upper mouth of the main body bottle 2 accounts for 15% of the standard load. In this embodiment, the internal capaci...
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Abstract
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