The application relates to a pouch assembly (100) containing a liquid being an aqueous urea solution for use in a selective catalytic reduction system for treating the exhaust gases of an internal combustion engine of a vehicle and for transferring the liquid to a liquid tank of the vehicle from the outside of the liquid tank, the pouch assembly (100) comprising a flexible pouch (1) and a spout (2) attached thereto having a base (21) extending axially through an opening (111) provided in a wall of the pouch (1) and being attached to the opening (111), a top end (22) being configured for insertion in the inside passage of the filling neck (3) of the liquid tank during the filling of the liquid tank, and a body (23) that extends between the base (21) and the top end (22) of the spout (2), the body (23) having an elongated shape, and the body (23) at least partially extending in the inside passage of the filling neck (3) of the liquid tank during the filling of the liquid tank, the base (21), the top end (22) and the body (23) having an elongated axial through-passage (211) to serve as a discharge passage for the liquid. The application relates furthermore to a system comprising such a pouch assembly (100) and a liquid tank having a filling neck (3) allowing insertion of the spout (2) for filling the liquid tank.

The invention relates to a sheet-material packaging bag which has a first side gusset (3) and a second side gusset (4), which are positioned between a front surface (1) and a rear surface (2), a top sealing seam (6) and at least one longitudinal sealing seam (5), wherein a reclosure device is arranged on the inner bag surface, beneath the top sealing seam (6), in the region of the first side gusset (3), and wherein the first side gusset (3) forms a reclosable pouring means when a bag portion (8) above the reclosure device is opened in order for contents to be removed. According to the invention, a carrying handle (14) is arranged on the second side gusset (4) and, as seen in the longitudinal direction of the second side gusset (4), is provided in the center or in an off-center manner in relation to the base (15) of the sheet-material packaging bag.