https://doi.org/10.1351/goldbook.08016
Quantity value attributed by agreement to a quantity for a given purpose.
Notes:
- Sometimes a conventional quantity value is an estimate of a true quantity value.
- A conventional quantity value is generally accepted as being associated with a suitably small measurement uncertainty, which might be zero.
- In quality assurance and quality control in chemistry, a conventional quantity value, which may be a consensus property value, is often termed "assigned value".
Examples:
- Conventional quantity value of a given mass standard, \(m = \pu{100.00347 g}\).
- Relative atomic mass for carbon as listed in the IUPAC Green Book.
- Consensus property value of the measured values of an interlaboratory comparison.