Medmindre andet angives, er ASTM-metoderne de metoder, som er fastlagt af American Society for Testing and Materials i 1976-udgaven om standarddefinitioner for mineralolieprodukter og smøreolier.
Unless otherwise stated, the term ‘ASTM method’ means the methods laid down by the American Society for Testing and Materials in the 1976 edition of standard definitions and specifications for petroleum and lubricating products.