COST ESTIMATION University of Okloma
COST ESTIMATION Types Of Cost Estimates 1. Order of Magnitude estimate. Extrapolate similar plant cost Accuracy: over 30% 2. Study Estimate. Knowledge of major pieces of equipment Accuracy: ±30% 3. Preliminary Estimate. Enough for budget authorization. Accuracy: ±20% 4. Definitive Estimate. Based on basic Engineering and quotes from suppliers ...