Excellent transparency and chemical stability, and its wide range of raw materials, low prices and manufacturing processes, so a variety of products made of glass are also widely used in people’s daily lives. Glass instruments are also made of glass and are widely used in chemical laboratories, medical laboratory, biological laboratories and teaching laboratories. Here we will talk about how to purchase laboratory glass instruments.
1. Burner: We all know that the main purpose of the burner is to heat it, and it is required that the thickness of the wall should be uniform, not too thin or too thick, which is best for heating.
2. For the choice of the tube type: we mainly look at its wall thickness and finish. For the bottle type, we can see a uniformity of the wall thickness, and the sanding area should be fine and closed.
3. Measuring device selection:For the gauge we mainly use it to measure the solution, so its accuracy is high, especially the scale of the straw, pipette, burette and so on.
4, complete sets of equipment. There are also many types of instruments, and the accessories are also rich and varied. For the purchase of complete sets of instruments, we mainly depend on the fineness of the workmanship and the thickness of the glass tube. Of course, it is also very important for the matte.
funnel vacuum filter solvent filtration apparatus
5, vacuum-type instruments require that the scrub must be in place, the sealing must be good!
6, sand core filter category: requires the welding of sand core and glass is good, can not leak.
7, thermometer, floating meter: requires measurement to be accurate! Work well!
8, matching latex, rubber products: products can not be too thin, pull-up is better!
