Measured Liquid
version 4 by Emily Short
Chapter 2 - Volume (for Z-Machine only)
Section 1I - Definition (for use without Metric Units by Graham Nelson)
A volume is a kind of value. 15.9 fl oz (in Imperial units, in fl oz) specifies a volume with parts ounces and tenths.
A fluid container has a volume called a fluid capacity. A fluid container has a volume called fluid content. The fluid capacity of a fluid container is usually 12.0 fl oz. The fluid content of a fluid container is usually 0.0 fl oz.
The sip size is a volume that varies. The sip size is usually 2.0 fl oz.
The max volume is a volume that varies. The max volume is 3276.7 fl oz.