as a customer,  would you buy if the product was testedet at...

as a customer,  would you buy if the product was testedet at neighbor Smith around the corner or at one an independent ISO1 7025 registered laboratory.  I think this is an important differnce with or without main ISO standard
There are many commonalities with the ISO  9000 standard, but ISO/IEC 17025 is more specific in requirements for
competence, and applies directly to those organizations that produce testing and calibration results and is based on somewhat more technical
principles
https://en.wikipedia.org/wiki/ISO/IEC_17025

The graphene market has  suffered from the lack of ISO and certification so far