One of the key elements of science laboratories is measuring volumes. The use of volumetric glassware is always a given in quantitative chemistry. Accuracy in volume measurements in this area of science should only have a 0.1% error rate. Keeping this fact in mind, the glassware that this particular field of science must use should be able to deliver or contain a volume of 0.01 ml. This requirement in glassware makes it necessary to measure volume in quantities between 10 ml to four figures.
Cleanliness is a vital component to get accurate readings using these instruments. Only with chemically clean glassware will you not find any visible droplets hanging from each instrument. At the same time, clean glassware gives way to a uniform film of water. There are a few things that you can do to ensure the level of cleanliness that you need for your glassware. For starters, after using your glassware, you have to rinse it thoroughly using deionized water. You can still wash your glassware well before using them if you are still suspicious of their cleanliness. If you look at some variations of glassware, there is a need for you to condition them before using them. One such example is pouring in small portions of the solution you plan on measuring that you can then rinse before you conduct any actual measurements. Doing this ensures that there will not be any contamination of water droplets that could dilute the solution that will be measured and make concentration changes.
When it comes to volumetric glassware, you will observe that they are calibrated using markings. These markings help identify the volume of liquid you need to measure with more accuracy. If you want to take more accurate volume readings, you have to make sure to look at the meniscus or the bottom part of the curved surface of the liquid you will be measuring. To see the meniscus easily, you may use a white card or paper behind the glassware. You must be able to maintain the glassware at eye level if you don’t want to make mistakes or inaccuracies when you measure liquid.