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STANDARD OPERATING PROCEDURE Code: METH 11V01 Title: Method for analyzing soil samples for mineral composition using XRD Date: July 30, 2014 Author: Robin Chacha ANNEX 2 Reference Corundum mount Al2o3(commercial standard) Quartz Mineral SiO2(Commercial standard) Interval Checking performance and verification of the instrument. With peaks occupying same position(no shifting) Run Monthly. Checking peak position, intensity and shape Run Monthly. 12 | M i n e r a l c o m p o s i t i o n u s i n g X R D S O P