Total Quality Management as a holistic management system is widely practical in every organization these days and one of the foundations of TQM which should be taken into account in all functions of the company is continuous improvement. Customer satisfaction is an important topic in which continuous improvement play a key role and leads to enhance it. Therefore, it is very worthwhile for the organization to define the designing new products/methods based on recent and future customer needs as one of its main activities. Generally, during the development and before launching a new product/method, validation is a useful process to improve the quality and establish the qualification of that product/method. This project was conducted to perform a validation for a new calorimetric method by use of DOE (Design Of Experiments) in “SP Technical Research Institute of Sweden”. The study have presented the results of implementing DOE in such a way that the new calorimetric method is validated; besides it could determine the best condition in which the intended results could be achieved. This thesis is a completion part of the master program in Industrial Engineering with a specialization in Quality and Environmental Management at University of Borås.