Document 4vV7vdgrxLLO48dN3d1qR9x4p

Engineering Material Specification ESW-M3D117-A 3.1.11 Infrared Spectrophotometry Ford Motor Company, at Its option, may conduct infrared analysis of material/parts supplied to this specification. The curves established for initial approval shall constitute the reference standard and shall be kept on file at Central Laboratory. All samples shall produce curves that correspond to the reference standard when tested under the same * conditions as those specified on the master curve. 3.1.12 Physical and/or Performance of Finished Product When required, shall be as specified on the affected part or product engineering drawing, or in the affected part or product engineering performance specification. 3.2 SUPPLIER'S RESPONSIBILITY Material supplied to this specification must be equivalent to that originally approved. Changes in formulation or processing shall not be made without prior approval as described in Supplier Procedure I~A. 4. APPROVAL OF SUPPLIERS Suppliers to this specification must be approved by the affected product engineering office. Procedure for gaining approval of a specific material to a new/existing ES-M specification is contained in Supplier Procedure 1-A. Approved new suppliers will be added to the Engineering Materials Approved Source List. (fctttce) 1877 11 21 5T?i 3M8* Page jL of JL 0001 131P