ASME B89.1.13 pdf download MICROMETERS 1 sCOPE This Standard is intended to provide the essentialrequirements for micrometers as a basis for mutualunderstanding between manufacturers and consumers.Outside，inside，and depth micrometers are describedin the Standard. 2 DEFINITIONS backlash:a relative movement between interactingmechanical parts，resulting from looseness [ASMEB5.54M-1992 (R1998)]. In this Standard,backlash isfurther defined as the rotation of the spindle, in theopposite direction of the...