date:Jan 08, 2014
vel D is the first reference standard in the history of USP that was produced by intentionally spiking liquid milk with a specific level of melamine before spray-drying the milk to produce a milk powder containing a specified amount of melamine. This production process of this reference standard has been designed to mimic as closely as possible the way skim milk powder is expected to have been illegally adulterated.
Both reference standards are the first in a series of new tools that are being