Pipettes and it's types. Pipettes. These are used to transfer a known volume of liquid from one container to another. They are designed either to contain (TC) a specific volume of liquid or to deliver (TD) a specified volume.
1 Frock (especially in the phrase short frock) is also a child's dress or light overdress. 2  A frock is a dense knitted overgarment worn by sailors and fishermen, as guernsey frock, jersey frock (now usually simply guernsey and jersey). 3  The name oil frock has been used for a type of sailor's oilskin.
Being frocked means you have been selected for the next rank, and are promoted because your job requires the title. However, you are not paid for that rank. For example, as and 0-6 or colonel, you can be frocked to Brigadier General, and wear the one star. But, you will still be paid as and 0-6 until officially promoted to 0-7.