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 form coatings by sintering or thermal spraying techniques. 1.3 This specification covers powder requirements only. It does not address properties of the coatings formed from them. 1.4 Finely divided titanium powder may be considered pyrophoric and should be