Absolutely.
A millimetre is a measure of length in one-dimensional space. Water is found in three-dimensional space and so the two measures are incompatible.
A teaspoon would hold more water than a millimeter. A teaspoon can hold around 5 milliliters of water, while a millimeter is a unit of length and does not have a volume measurement.
1000
0.5 psig is equivalent to 13.8 inches of water column.
To convert inches of water column to volume, you would need to know the area over which the water column is acting. Once you have the area, you can calculate the volume by multiplying the inches of water column by the area in square inches. The formula would be: Volume = Inches of water column * Area.
The column with the smallest diameter has greater pressure and the column with a larger diameter has less pressure.
Head pressure is created by a column (depth) of water in a container. Pipe is considered a container. Diameter is not a factor. The higher the column of water, the more psi it creates. Multiply column height of water by .434 to get psi of water.
27.71 inches of water column equals 1 psi
0.25 psig = 413.7 inches of water column
10 inches of water column equals to how much gas pressure?
Because is not only a millimeter (distance) but a true unit of pressure: the pressure exercised by an 1 millimeter column of mercury on a specified area. 1 mm col. Hg = 13,595 1 mm col. H2O = 133,322 4 Pa .
Water column head is expressed either as the height of the column ... 6 meters here ... or else as the pressure at the bottom ... 58.842 kPa here. 'Kg' can't be a unit of water column head, and the diameter of the column is irrelevant.