Traceability to units

Keywords Traceability Units Reference value Metrology Accreditation Scale 

taking into account what the audience does and does not know, it must take the audience closer to a correct understanding.. Second, its inaccuracies (as judged at a more sophisticated level) must not mislead. 

Both of these criteria must be applied from the point of view of the audience, not from the more informed and properly more critical view of an expert. 

Viewed through these criteria, there is considerable room for improvement in our communication practices in chemical and biological measurement. Anyone who wishes to dispute this should contemplate how they would explain to a jury in the face of a persistent and skillful opposing advocate the concepts of the mole and amount of substance as defined in the SI. 

To start with, most of the end points listed are not even the sorts of things that measurements can be traceable to, at least on the face of it. To say that laboratories or substances are properties of measurements per se and to which they may be compared is a simple confusion of logical categories, like saying that a velocity can be compassionate. Indeed, 

---