Abstarct: The quality of cementing operations defines how long the well can be productive without remedial operations. Additives modify the behavior of the cement system, ideally allowing successful slurry placement between the casing and the formation, rapid compressive strength development, and adequate zonal isolation during the lifetime of the well. Many of nowadays additives have low efficiency so high quantities should be used to fulfill the cement slurry properties. Low quality additives will result in undesirable characteristic in cement slurry such as poor rheological properties, high gel strength, high fluid loss, poor hydration of cement in annulus space, weak zonal isolation, insufficient compression strength, so the quality of any cement additive definitely must control in laboratory before field operations. In this study quality control procedure have been proposed for retarders, dispersants, fluid loss controls.The method is corrected then by index additives. Synthetic additives have been qualified by the same method and compare to index additves.