ISO 16249 pdf download Springs — Symbols Scope This International Standard specifies general principles forthe creation ofsymbols ofphysical quantitiescoefficients,and parameters for metalsprings.ltspecifiesthe presentation ofbasic characters,subscriptsand application symbols for use in the field of helical compression springs, helical extension springsnelical torsion springs, flat springs, and leaf springs with attention to technical product documentationespecially for describing and ordering. 2 Normative references The...