Part 4, Chapter 1 requirements must be met, including:

1) Compatibility requirements

- Substances must be compatible with their packagings as required by 4;1.1.3.

2) Closure requirements

- Closures must meet the requirements of 4;1.1.4.

Fibre, fibreboard, wood and plywood single packagings must be fitted with a suitable liner.

For UN 2590, bags must be placed in closed rigid overpacks.