The IUPAC analytical community continues to refine and expand the Orange Book's terminology. Several updates are either in progress or have been recently published:
: A glossary of terms for mass and volume in analytical chemistry, updating earlier recommendations from the Orange Book, was published as an IUPAC Recommendation in 2024. This includes definitions for gravimetry, volumetry, and titrimetry. iupac orange book pdf
The Orange Book serves several critical functions in the analytical chemistry community: The IUPAC analytical community continues to refine and