The general provisions of 4.1.1 and 4.1.3 shall be met.

Inner packagings made of paper or fibre shall not be used when the substances being carried may become liquid during carriage.
Inner packagings made of plastics, paper or fibre shall be sift-proof.
Large outer packagings made of flexible plastics (51H) shall be used with flexible inner packagings only.

Maximum capacity: 3 m³