Abstract: A method comprising performing a process for authenticating a user of a compartment installation vis-à-vis a backend system managing the compartment installation. A necessary condition for performing the process for authenticating the user is that a proximity check has revealed that a mobile device of the user is situated at the location of the compartment installation, and/or that an occupancy check has revealed that the compartment installation contains at least one shipment assigned to the user. A corresponding apparatus, a corresponding system and a corresponding computer program are furthermore disclosed.

Abstract: The present invention relates to a solid salt preparation with improved ease of handling, which comprises a mixture composed of a salt of a halogen-containing oxy acid and of a solvent. The present invention further relates to a process for the production of these salt preparations and also to their use, in particular in stabilizer compositions for halogen-containing polymers.

Abstract: A stabilizer composition for halogenated polymers includes at least one compound from group A) and at least one compound from group B), group A) being composed of semicarbazides, carbazides, carbazones, and carbodiazones, and their salts, and group B) of guanidines and melamines, superacids and salts of superacids, epoxy and glycidyl compounds, 1,3-dicarbonyl compounds, polyols, sterically hindered amines, hydrotalcites, zeolites, and alkali metal aluminocarbonates, hydrocalumites, metal hydroxides, metal oxides, metal hydrogen carbonates, and metal carbonates, metal soaps, organotin compounds, organic phosphite esters, amino alcohols and hydroxyl-containing isocyanurates, ?,?-unsaturated ?-aminocarbonyl compounds, aminouracil compounds and aminothiouracil compounds, and compounds having at least one mercapto-functional, sp2-hybridized C atom. Polymers stabilized in accordance with the invention are notable in particular for improved initial color and also for improved color maintenance.