For the transport category, see special provision 671. 
As of January 1st, 2019, this UN No. is no longer assigned a packing group in Table A of the RID. According to special provision 251, the purposes of completion of the transport document as set out in 5.4.1.1.1, the packing group shown on the document shall be the most stringent packing group assigned to any individual substance in the kit. Where the kit contains only dangerous goods to which no packing group is assigned, no packing group need be indicated on the dangerous goods transport document.
According to the aforementioned special provisions, packing group I and transport category 1 apply to this first aid kit.