Frey Scientific Hanging Boyle's Law Unit consists of a specially modified 10 milliliter plastic syringe with a metal loop fastened to the plunger end. Masses of all sizes can easily be suspended from the loop. This convenient, low-cost design gives precise data without the special care required with the use of mercury apparatus. Apparatus clearly demonstrates all tested gases conform to the pressure-volume constant and the various elastic qualities of gases. A pinchcock and quantity of lubricant are included.
