Nanoscale titanium-dioxide may well be the most widely manufactured and used nanomaterial in the world. It is also one of the most widely studied. The National Institute of Standards and Technology (NIST) has now issued a new nanoscale reference material for use in a wide range
of environmental, health and safety studies of industrial nanomaterials.

 The new NIST reference material is a sample of commercial titanium dioxide powder commonly known as “P25".

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