The general provisions of 4.1.1 and 4.1.3 shall be met.

Inner packagings of paper or fibre shall not be used when the substances being transported may become liquid during transport.

Inner packagings of plastics, paper or fibre shall be sift-proof.

Outer packagings of flexible plastics (51H) shall only be used with flexible inner packagings.

The volume of the large packaging may not exceed 3 m³.

Special packing provision L4:
For UN Nos. 1932, 2008, 2009, 2545, 2546, 2881 and 3189 flexible or fibre inner packagings shall be hermetically sealed.