Material | High Borosilicate glass |
Specification | 5ml-100ml |
Description/Packaging | 20 pcs/box, 100 pcs/carton |
Features | It has strong sealing performance, heat resistance, high temperature resistance, temperature difference resistance and high corrosion resistance. |
Scope of application | laboratory |
Instructions
Wash the pycnometer, dry it, weigh it and record the mass. Put the test object into the bottle to the mouth of the bottle, move it into a constant temperature water bath of 25℃ (the temperature difference does not exceed 1℃) and soak it for 10-20 minutes. The test object will also reach the At this temperature, insert the stopper of the bottle and let the excess liquid flow out from the capillary pores. Wipe it clean with filter paper. Do not touch the pycnometer with your hands when wiping to avoid excessive overflow of the solution due to the temperature. Wipe the heddle and move it to the balance. Weigh the mass and then deduct the mass of the bottle, which is the mass of the test object. Note down the temperature conditions and steps above, pour out the test object, wash it, replace it with steamed water, weigh the mass, and then divide by The mass of the test object is the density of the test object.
