ISO 286-1:2010
Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes — Part 1: Basis of tolerances, deviations and fits
ISO 286-1:2010 establishes the ISO code system for tolerances to be used for linear sizes of features of the following types: a) cylinder; b) two parallel opposite surfaces.
ISO 286-1:2010 defines the basic concepts and the related terminology for this code system. It provides a standardized selection of tolerance classes for general purposes from amongst the numerous possibilities.
Additionally, it defines the basic terminology for fits between two features of size without constraints of orientation and location and explains the principles of “basic hole” and “basic shaft”.
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Scope
Normative references
Terms and definitions
Basic terminology
Terminology related to tolerances and deviations
Terminology related to fits
Terminology related to the ISO fit system
ISO code system for tolerances on linear sizes
Basic concepts and designations
Relation to ISO 14405-1
Tolerance class
General
Magnitude of the tolerance
Standard tolerance grades
Placement of tolerance interval
Fundamental deviation
Designation of the tolerance class (writing rules)
General
Size and its tolerance
Determination of a tolerance class
Determination of the limit deviations (reading rules)
General
Determination of limit deviations using the tables of this p
General
Standard tolerance grade
Position of the tolerance interval
Establishment of limit deviations
Establishment of limit deviations using (-values
Determination of limit deviations using the tables of ISO 28
Selection of tolerance classes
ISO fit system
General
Generics of fits
Designation of fits (writing rules)
Determination of the limit deviations (reading rules)
Determination of a fit
General
Practical recommendations for determining a fit
Selection of the fit system
Determination of a specific fit by experience
Determination of a specific fit by calculation
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Related Information
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BS 1916-1:2009
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BS 2856:1973
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Scope
Normative references
Terms and definitions
Basic terminology
Terminology related to tolerances and deviations
Terminology related to fits
Terminology related to the ISO fit system
ISO code system for tolerances on linear sizes
Basic concepts and designations
Relation to ISO 14405-1
Tolerance class
General
Magnitude of the tolerance
Standard tolerance grades
Placement of tolerance interval
Fundamental deviation
Designation of the tolerance class (writing rules)
General
Size and its tolerance
Determination of a tolerance class
Determination of the limit deviations (reading rules)
General
Determination of limit deviations using the tables of this p
General
Standard tolerance grade
Position of the tolerance interval
Establishment of limit deviations
Establishment of limit deviations using (-values
Determination of limit deviations using the tables of ISO 28
Selection of tolerance classes
ISO fit system
General
Generics of fits
Designation of fits (writing rules)
Determination of the limit deviations (reading rules)
Determination of a fit
General
Practical recommendations for determining a fit
Selection of the fit system
Determination of a specific fit by experience
Determination of a specific fit by calculation