Satya (2009) developed six sigma program in a network company in USA and implemented model consists of six steps :strategic analysis, establish high level cross functional team, identifying overall improvement tools, performing high level process mapping, developing detailed plan and to form low level improvement teams. Another study was done by Obaidullah(2005) and he studied the implementation of six sigma in UK organizations and found that six sigma has been adopted in both manufacturing and service organizations in UK and it require an average of four to nine month to complete full six sigma project ,also the percentage of the employees who have been involved in these projects was 1-20%. Jiju Antony et al (2006) discussed the importance of six sigma in the service industry and the benefits will be gained after the implementation of six sigma projects, and they found that majority of service organizations in UK have been engaged in six sigma and the average level of the companies was around 2.8 sigma with 98000 DPMO. Furthermore six sigma also can be applied in the field of pharmaceutical industries and it contain huge opportunity to implement the DMAIC process .Karl (2008) applied a stability test to diagnose quality level of the materials and reagents ,and he found that two parameters are linked with pharmaceutical and diagnostics stability testing are :real time stability monitoring and accelerated stability testing processes then he applied the full DMAIC process and he conclude that the process capability must be considered equally as important as the science behind the testing. Recentrly, González Falcón et. al.(2012) applied six sigma methodology to improve energy efficiency in a distillation unit of a naphtha reforming plant and they reproduced the model of energy consumption with an expected savings of 150,000€/year by optimizing the distillation process of a naphtha reforming unit through identifying the causes of variation in 14 critical inputs.