Combination packagings are authorized.
The general provisions of 4.1.1 and 4.1.3 shall be met.

Additional requirements:
1. Packagings shall be designed and constructed to prevent the loss of water or alcohol content or the content of
the phlegmatizer.
2. Packagings shall be so constructed and closed so as to avoid an explosive overpressure or pressure build-up of
more than 300 kPa (3 bar).


Special packing provision PP48:
For UN No. 3474, metal packagings shall not be used. Packagings of other material with a small amount of metal, for example metal closures or other metal fittings such as those mentioned in 6.1.4, are not considered metal packagings.