1.1 This specification covers the requirements for unalloyed titanium and Ti-6Al-4V alloy powders for use in fabricating coatings on titanium alloy implants. 1.2 Powders covered under this specification may be used to fo This specification covers the chemical, particle size, and cleanliness requirements for unalloyed titanium and titanium-6aluminum-4vanadium alloy powders for use as coatings, formed by sintering or thermal spraying techniques, onto titanium alloy surgi