mahumõõdunõude puhul rakendatav meniski/õhu ja vedeliku vahelise piiri asetus skaala- või ringimärgi suhtes
principle of the volumetric instruments of setting or reading a meniscus (the interface between air and the liquid) against a graduation line or ring mark
By measurement the tubing of the volumetric instrument shall be in a vertical position, and the eye of the operator shall be in the same horizontal plane as the setting the meniscus or the graduation line (graduation mark).
