The standard unit of measure used to enable comparison of item price to other items.See guideline on Items and packing units in a catalogue.

Usage
Mandatory
Business terms
tir19-085
Code lists
Recommendation 20, including Recommendation 21 codes - prefixed with X (UN/ECE)
Rules
Identifier/Error message Flag
EHF-T19-B13202
Value MUST be part of code list 'Recommendation 20, including Recommendation 21 codes - prefixed with X (UN/ECE)'.
fatal