20.00 Sep 16, 2025
ISO
ISO/TC 174
International Standard
This document specifies terminology,classsification and test methods that are used for grading and discription of cultured pearl, This document also specified the requirements for graders, and basic contents of grading reports..
IN_DEVELOPMENT
ISO/AWI 26016
20.00
New project registered in TC/SC work programme
Sep 16, 2025