AssayIndex
Index conventions

Rule AX-R01

Mass accuracy outside the class limit. Records identity as not established rather than failed, because most instances are calibration problems.

Related terms

Mass accuracy
Difference between measured and theoretical mass, in ppm of the theoretical value. A relative measure — the same ppm is a different absolute error at different masses.
see also ppm · Rule AX-R01

Where this term appears

The glossary exists to make record pages readable without a chemistry degree. Every technical term on a report resolves here.