X-Ray generator: 600 Watt and Copper target. Include slits and filters if needed Chiller: include the chiller if needed. Specify if tap water is needed. Specify the Instrument size, weight and power requirements. Quote for the minimum number sample holders with stages. Sample holder should facilitate height adjustment to accommodate a variety of samples. Goniometer: Wider the scan range better, example: 0 to 120 deg 2Θ Detector: 1D high speed detector Data acquisition and analysis: include a computer and software if needed, for control and data processing. Include reference sample for calibration Specify warranty clearly for the instrument, service and technical help. Include free databases that are needed for particle size estimation and phase identification. Clearly mention the types or names of the databases. If your software is too expensive list that as an option. The quote should include Installation, operation, and training for data acquisition and analysis. During installation you must demonstrate the instrument capabilities with our samples.