For the measure. Use UN/ECE Recommendation 20 and 21.subset.

Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
udt:MeasureType
Example value
123
Attributes
Use Name Description
M @unitCode

Measure unit of measure

Example value: MTR

Rules
Identifier/Error message Flag
PEPPOL-T120-R018
Shipment gross weight measure SHALL match the gross weight of the transport handling units specified
warning
PEPPOL-T120-R019
Shipment gross volume measure SHALL greater or equal of the transport handling units specified
warning
PEPPOL-T120-B35501
Attribute 'unitCode' MUST be present.
fatal