Din 53507 Pdf Site
As I couldn't find a publicly available PDF of the standard, I'll provide you with a summary of its content. If you'd like to access the full standard, I recommend purchasing it from the DIN (Deutsches Institut für Normung) website or a similar standards repository.
Rubber and Elastomers - Tear Resistance Test din 53507 pdf
2016-02 (February 2016)