This International Standard gives definitions of terms relating to powder metallurgy1). Powder metallurgy is the branch of metallurgy which relates to the manufacture of metallic powders, or of articles made from such powders with or without the addition of non-metallic powders, by the application of forming and sintering processes. The terms are classified under the following main headings: 1 Powders 2 Forming 3 Sintering 4 Post-sintering treatments 5 Powder metallurgy materials An alphabetical index of the terms defined is also given. NOTE 1 In addition to terms and definitions used in English and French, two of the official ISO languages, this International Standard gives the equivalent terms and definitions in the German language; these are published under the responsibility of the member body for Germany (DIN). However, only the terms and definitions given in the official languages can be considered as ISO terms and definitions. NOTE 2 Additional information on certain of the terms defined can be found in the standards given in parentheses at the end of certain definitions. These are listed in the Bibliography.