‪@AnesthesiaandCriticalcare‬ In this part 1, we discuss about cylinder physics like gauge and absolute pressure, units of measuring pressure and types of compressed gas. The liquefied and non liquefied gas basics are taught. More importantly, the method to measuring cylinder volume using conversion factor, boyles law and Avogadro's hypothesis is presented with examples. this past is followed by part 2. Cylinder anatomy from the same playlist.