The scientific measurement used is the American standard
O English standard
metric system
O standard system
The scientific measurement used os the ?

A system of measurement is a collection of units of measurement and rules relating them to each other. Systems of measurement have historically been important, regulated and defined for the purposes of science and commerce. Systems of measurement in use include the International System of Units (SI), the modern form of the metric system, the imperial system, and United States customary units.

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.