TL 52452 refers to polypropylene with increased crystallinity and describes the material requirements for injection molded parts in vehicle interiors
The Volkswagen AG standard TL 52452 (technical delivery condition) is applied by the core brands VW and Audi as well as the VW subsidiaries Skoda and SEAT.
After preconditioning, the following tests are possible:
material identity
with IR spectroscopy
color and surface
according to TL 52452, VW 50190
density
according to DIN EN ISO 1183-1A
ash residue
according to DIN EN ISO 1172
yield stress
according to DIN EN ISO 527-1
elongation of the yield stress
according to DIN EN ISO 527-1
Gearmodule
according to DIN EN 178
heat resistance according to VICAT
according to DIN EN ISO 306, A50
impact strength
according to DIN EN ISO 179-1/1.eA
thermal behavior
according to DIN 53497
climate change test
according to PV 2005, procedure A
heat aging
according to TL 52452
hot exposure
according to PV 1303 (flatbed device)
melting temperature
according to DIN EN ISO 3146
cold behavior
according to TL 52452
ball drop test
according to PV 3905
decorative adhesion (roller peel test)
according to PV 2034
scratch resistance
according to PV 3952
Burning behavior
according to TL 1010
stress whitening behavior
according to PV 3966
