ANSI N14.5:2014

This Standard specifies methods for demonstrating that Type B packages designed for transport of normal form radioactive material comply with the containment requirements of Title 10 of the Code of Federal Regulations Part 71 (10 CFR Part 71).
This Standard describes
Package release limits
Methods for relating package release limits to allowable and reference leakage rates
Minimum requirements for leakage rate test procedures.
This Standard provides requirements for the following leakage rate tests
Design
Fabrication
Maintenance
Periodic
Pre-shipment.

This Standard also contains non-mandatory appendices on leakage rate test methods, determination of reference leakage rates, and determinations of activity in the medium.