PolyU Library
Journal Call no.HD9747.A8J48
Article TitleHow the standards were complied.
Is Part OfJewellery news Asia ; no.148, Dec 1996, p.29, illus.
AbstractDrafting and finalization of the standards on nomenclature and identification of gemstones and diamond grading were according to the procedures for national standards in the Standardization Law of China, director of National Gemstone Testing Centre (China) (NGTC) in Beijing, which drafted the standards. Professor Zhang Bei Li talks about the compilation process.