This UN number is no longer assigned to a packing group in the Dangerous Goods List as of twentieth edition of the UN Model Regulations. According to special provision 251, for the purposes of completion of the dangerous goods transport document as set out in 5.4.1.4.1, the packing group shown on the document shall be the most stringent packing group assigned to any individual substance in the chemical test kit. Where the chemical test kit contains only dangerous goods to which no packing group is assigned, no packing group need be indicated on the dangerous goods transport document.
For this chemical test kit, packing group II applies.