Tempering - flat glass

The activity generating the emissions is tempering, flat glass. The Reference Product is tempering, flat glass. The service "tempering, flat glass" represents the toughening of 1 kg of glass, a special process of solidification of a glass sheet in order to make it particularly resistant to breakages. The glass sheet is heated to a temperature just below its softening point (about 640°C, thermal tempering) and then immediately cooled by special jets of cold-air. These harden the surface of the glass, giving the inside more time to cool. This allows the external layer to crystallize into a wider lattice while the inside solidifies with greater compression than in the crystal lattice. The most common application is automotive glass. A user employing this module should add the respective amount of raw glass, as the throughput of raw glass is not included. The Reference Product amount is 1. The cut-off classification is allocatable product. The activity type is ordinary transforming activity. Please refer to the ecoinvent documentation for full details: https://ecoquery.ecoinvent.org/3.12/cutoff/dataset/3602/documentation