This standard specifies the general requirements for instruments that automatically measure liquid levels (hereinafter referred to as level meters) to determine the volume of liquid stored in tanks, etc. The individual requirements for individual level meters with different measurement principles are specified in the annex. Note () Original distance from a reference point such as a tank to the liquid level. The distance from the upper reference point is called ullage or outage, and the distance from the lower reference point is called dip or innage.
JIS B 7560:1992 history
1992JIS B 7560:1992 Automatic level gauges for measuring the level of liquid in tanks