* The official SI quantity is electrical current, and the base unit is the ampere. Electrical current is the.

The unit is simply a particular example of the quantity concerned which is used as a reference, and the number is the ratio of the value of the quantity to the unit.

For your convenience, we have included a guide for interconversion of conventional and SI units, along with defi nitions of abbreviations used. The following table lists gravimet-ric and possible international …

This compilation represents abbreviations and units of measure that may appear on a patient chart and/or in test information found in the ARUP Laboratory Test Directory. Specific information about …

We express vectors in component form using the unit vectors i, j and k, which each have magnitude 1 and point along the x, y and z axes of the coordinate system, respectively.

pounds per square inch (psi) =

By fixing the exact numerical value, the unit becomes defined, since the product of the numerical value and the unit has to equal the value of the constant, which is postulated to be invariant.