ASME B89.1.13:2001 pdf download MICROMETERS
1SCOPE
This Standard is intended to provide. the. essentialrequirernents for micrometers as a basis for mutuaunderstanding between manufacturers and consumersOutside,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 initial reading, before spindlemoves in a linear direction. This condition is typicallycaused by looseness of fit between the lead screw andadjusting nut.
bias: systematic error of the indication of a measuringinstrument(VIM).
eccentricity: the distance between the geometric centeror axis of the body and its axis of rotation.
end shake: the amount of spindle movement, whenan axial force is applied in the direction of the spindlealternating towards the anvil and away from the anvil,without rotating the spindle.
error (of indication) of a measuring instrument:indication of a measuring instrument minus a true valueof the corresponding quantity (VIM).
NOTE: This concept applies mainly where the instrument is comparedto: a reference standard.
flatness: the condition of a surface havingall elementsin one plane (ASME Y14.5M-1994)
maximum permissible error (MPE):extreme valuesof an error permitted by specifications, etc, for a givenmeasuring instrument (VIM).
parallelisrn: the condition of a surface or center planeequidistant at all points from a datum plane or axis,equidistant along its length from one or more datumplanes or a datum axis (ASME Y14.5M-1994).
runout: a composite tolerance used to control thefunctional relationship of one or more features of apart to a datum axis. The types of features controlledby runout tolerances include those surfaces constructedaround a datum axis and those constructed at rightangles to a datum axis (ASME Y14.5M-1994).
side shake: the amount of spindle side movementwhen a force is applied perpendicularly to the measuringend of the spindle,alternating from side to side, withoutrotating the spindle.
tolerance: the total amount the specified dimensionis permitted to vary. The tolerance is the differencebetween the maximum and minimum limits (ASMEY14.5M-1994)
3 REFERENCES
This Standard has been coordinated insofar as possiblewith the following standards.
ASME B5.54M-1992 (R1998)，Methods for Performance Evaluation of Computer Numerically ControlledMachine Centers
ASME Y14.5M-1994，Dimensioning and Tolerancing
Publisher: The American Society of Mechanical Engineers (ASME International)，Three Park Avenue.New York，NY 10016
IEEE/ASTM SI 10-1997，Standard for Use of theInternational System of Units (SI): The ModernMetric System Revision and Redesignation of ANSLIEEE Std 268-1992 and ASTM E 380
Publisher: Institute of Electrical and Electronics Engi-neers (IEEE),445 Hoes Lane, Piscataway, NJ 08854
ISO 3611, Micrometers Calipers for External Measure-ments，1978
Publisher: International Organization for Standardization(ISO),1 rue de Varemb,Case Postale 56，CH1121.Geneve 20，Switzerland/Suisse
ASME B89.1.13:2001 pdf download
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