scope
for polyethylene packagings as specified in 6.1.5.2.6, and for polyethylene ibcs as specified in 6.5.6.3.5, the chemical compatibility with filling substances may be verified by assimilation to standard liquids following the procedures, as set out in 4.1.1.21.3 to 4.1.1.21.5 and using the list in table 4.1.1.21.6, provided that the particular design types have been tested with these standard liquids in accordance with 6.1.5 or 6.5.6, taking into account 6.1.6 and that the conditions in 4.1.1.21.2 are met. when assimilation in accordance with this sub-section is not possible, the chemical compatibility needs to be verified by design type testing in accordance with 6.1.5.2.5 or by laboratory tests in accordance with 6.1.5.2.7 for packagings, and in accordance with 6.5.6.3.3 or 6.5.6.3.6 for ibcs, respectively.
note: irrespective of the provisions of this sub-section, the use of packagings, including ibcs, for a specific filling substance is subject to the limitations of table a of chapter 3.2, and the packing instructions in chapter 4.1.