Recently, the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the National Standards Commission jointly released 7 national standards for nanomaterials, marking the first time in the world that nanomaterials standards have been released in the form of national standards. 7 Standards

Implemented from April 1, 2005.

The seven standards are:

Terminology of Nanomaterials (GB/T19619-2004)

Nano powder Determination of particle size distribution Small angle X-ray scattering method (GB/T13221-2004)

Determination of Specific Surface Area of Solid Substances by Gas Adsorption BET Method (GB/T19587-2004)

Nano Nickel Powder (GB/T19588-2004)

Nano Zinc Oxide (GB/T19589-2004)

Ultrafine Calcium Carbonate

(GB/T19590-2004)

Nano titanium dioxide

(GB/T19591-2004)