Many testing and inspection machines were maintenance and installed by maintenance committee members of Lec. Dr. Khalid K. Abbass and Eng. Mohammed M. Jabbar under supervision of Assist. Prof. Dr. Ahmed A. Zainulabdeen. The round one include installation of Atomic Absorption (PG instrument AA500) with two types, first: with a flame and accuracy of part per million(PPM), second; without flame which contain graphite furnace and an accuracy of part per billions (PPB), with installation of all their accessories. These inspection functions are elemental analysis in liquids with high precision.