ISO 13779-2:2008 specifies requirements for ceramic hydroxyapatite coatings applied to metallic or non-metallic surgical implants.
ISO 13779-2:2008 does not cover coatings made from glasses, glass ceramics, alpha- and beta-calcium orthophosphate or other forms of calcium phosphate, nor does it cover coatings in which the hydroxyapatite is present in a powder form.