In IS version 7.10.38.9-LTS price list import converter has hardcoded US locale value for name and description fields.
Resulting backend for German language looks:

Is this issue meant to be localized in future versions? So that we can choose option to adapt either CSV files or override/create own converter template.
PriceListCSVConvert.isml:
<description xml:lang="en-US"><isif condition="#isDefined(data:PriceList_Description)#"><isprint value="#data:PriceList_Description#"></isif></description>