dumb
Area of rod = length*diameter*pi
The standard depth of hanging closet rods is 24 inches. The standard width is usually between 72 to 96 inches. The closet height is generally 84 inches.
As per the Italian standard, the standard height of the wall hung water closet is 420mm, Table top basin is 850mm
27'
Assuming it is a rod, the difficulty lies in that it can't measure the diameter of the beaker. Unless you were to attempt to find out the Radius/Diameter, then work out the circumference from that.
The capacity of the rod depends on what it's made of, how it is installed, its length and mid-support. If you are attaching a rod to the rod that's currently installed, that will add stress to the first rod, so make sure you know the capacity of the original closet rod. Rods that are anchored in the studs are more sturdy. Use solid hardwood rods. Plastic and aluminum rods, often sold in doubling kits, aren't very study.
If the diameter of the rod is increased but the oil flow remains the same, the retraction speed of the cylinder rod will decrease. This is because a larger diameter rod requires more volume of oil to fill, resulting in slower movement when the same amount of oil is flowing through.
81 3/4" and 40 1/2"
It is 48" maximum to the center line of the rod.
The smallest commercially (easily) available steel rod is about 0.014" diameter.
There is no single diameter - there are steel rods of different diameters for different uses.