Within the PEC, a project was set up for the definition of Guidelines for Sus tainability and Integrity in Rela tionships with Suppliers (Italian acronym SIRF) which is aligned with AVERAGE QUALIFICATION TIME (days) 1, 97 2 2007 1,200 1,500 1,800 2,100 suppliers Ethics in Purchasing?To build and maintain relationships based on correctness and transparency and to pursue quality and stability in dealing with suppliers, adopting principles of legality, consistency and loyalty throughout the procurement process.