ISO 8015:2011 download free.Geometrical product specifications ( GPS ) -Fundamentals-Concepts principles and rules.
ISO 8015 Is a geometrical product specification (GPS) standard and Is to be regarded as a en4al GPS standard (see ISOITR 14638). It mfiuences all other standards m the GPS matrix system,
i.e. all global, general and supplementary standards, as well as any other kind of document in the GPS matrix system.
For more detailed information of the relation of ISO 8015 to other standards and the GPS matrix model, see Annex A.
ISO 8015 covers a number of fundamental principles that apply to all OPS standards and technical product documentation that is based on the GPS matrix system. Urdi this current version of ISO 8015 was published, these prwicaples were implied, but not formutated explicitly.
ISO 8015 also covers the indication of ISO default specification operators and parbculatiy the indication of non-default specification operators, either by direct indication or by the use of company. specific or drawing-specilic defaults
For the pwpose of ISO 8015, a concept is considered as an abstract idea, a principle is considered as a standardized truth based on concepts upon which rules are based, and a rule is considered as a standardized procede (for action).
ISO 8015 specifies fundenentaI concepts. preicipies and rules valid for the creation, interpretation and application of all other InternatIonal Standards, Technacal Specifications and Technical Reports concerning dimensional and geomevical product specifications (GPS) end venfication,
ISO 8015 apphes to the anlerpretabon of GPS mdications on all types of drawings.
For the purposes of ISO 8015, the tern drawlnq is to be interpreted in the broadest possible
sense, encompassing the total package of documentation specifying the workplace.
2 Normative references
The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments applies
ISO 17450-1:—’), Geomet,icalproisicf specifications (GPS) — General concepts — Flirt 1: Model for geomefricsl spe&icaeon and enWcalion
ISO 17450.2:_21, Geometrical prccksct specthcations (GPS) — General concepts — Pe,t 2: Basic tenets. pecflcatEons. operators and uncertainties
ISO1IEC Guide 98.32008 Uncertainly of measurement — Guide to the exprewon of uncertainty in measurement (GUM:1995)
ISO1IEC Guide 99:2007, International vacabuiary of meIrrlogy — Basic and general concepts and associated tenns (VlA
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17450-1. ISO 17450-2. ISOIIEC Guide 984, ISOI1EC Guide 99 and the following apply
3.1
ISO GPS system
GPS system
geometrical proact specification and verification system developed in ISO by ISOITC 213
Toletancing ISO 8015 can optionally be indicated in or near the title block for information, but is not required to invoke the ISO GPS system.
NOTE 1 The most ccrnrnen way to liwoke the ISO OPS system Is to ie one or mote GPS sp.dltcations eia drawing
NOTE 2 The ISO GPS system defined in the tiwnetlonal Slandarde pidstslied by ISOITC 213 See also ISOR 14638
NOTE 3 That th entire ISO GPS syem is nvoked means mat e.g. fundem.ntaI and globsi GPS standards apply and ccns.qu.ntly thateg. the reference terr(iqrabjre given to ISO 1 and the decision rules given to ISO 14253.1 apply unless otherwiee mdlcated, The p.,%pose of the Invocation pflnciple Is to provide the formal Ireceabatly kit these GPS standards and rules.
5.2 PrincIple of GPS standard hierarchy
The ISO GPS system is defined to a hierarchy of standards that includes the following tes ci standards to the given order
— fundamental GPS standards:
— global GPS standards.
— general GPS standards:
— complementary GPS standards.
The rules given to standards at a higher level m the hierarchy apply in ad cases unless rules in standards at lower levels in the hierarchy specificady give other rules.
The rides given in fundamental GPS standards, e.g. this International Standard, apply in all cases, unless the rules ins specific standard at a lower isvet give other rules that apply within its scope.
The rules given In global GPS standards. e.g ISO 1. apply in ad cases, unless the rules to a specific general or complementary GPS standard give other rules that apply within its scope
All rules given in fundamental and global GPS standards apply to addition to the rules specifically given it general GPS standards. e.g. ISO 1101, except in the cases where the rides in the general GPS standard are explicitly different from the rules given in fundamental and global GPS standards and unless the rides in a specific complementary OPS standard v other rules that apply within Is scope.
All rules given in fundamental, global and general GPS standards apply in addition to the rules specifically ven in complementary GPS standards. e.g ISO 2766-1. except In ttie cases where the rules in the complementary GPS standard are explicitly dIfferent from the rules given in fundamental, global and general GPS standards.
5.3 Definitive drawing principle
The drawtng is definitive, All specifications shall be Indicated on the cawing using GPS symbology (with or without specification modifiers), associated default ties or special rules and references to related documentation, e.g regional, national or conwany standards. Consequenify, requirements not specified on the drawing cannot be enlorced
A drawing may Include specifications relating to several stages of completion of the product. in this case. It shall b Indicated which stage each incation refers to. unless It Is the final stage.
As part of the ISO GPS system, ISO 8015 and the principles and rules defined in II apply to ad product specifications where the ISO GPS system is invoked (see 5.1). even though Ills not explicitly referenced in the drawing.
NOTE As staled Si the Scope, low lie purpoees of ISO 8015, the term ‘drawing’ a to be Interpreted In the broadest goesible sines. encorng.ssing the total pecSag. DfdXiAnSntShOfl specifyIng the woriec.,
5.12 General specification principle
General GPS specifications apply indivIdually to each characteristic for each feature and to each characteristic for each reationsftip between features for which no individual GPS specification of the same type has been indicated. General GPS specifications are considered as a set of specifications unless otherwise specified and apply to each characteristic for each feature end La each characteristic for each relationship between features Individually.
If no general GPS specifications are Indicated in or near the title block, then only the individual GPS specifications Indicated In the technical product documentation apply.
If more than one general GPS specification is indicated m or near the title block and these specifications are contradictory, they ahal be supplemented with an esplanation to metra it clear to which charactefistios each general GPS specification apphes to avoid ambiguities in the specification.
In the case of contradictory general GPS specifications. ie two or more general GPS specifications for the same characteristic, the general rules for ambiguity of the specification only require compliance with one general GPS specification, I.e. the most permissive one.
NOTE I M lndwidu GPS specification can be more orbs, resbictive than the general GPS specatcebon inthcd m the draweg
NOTE 2 For exanwle. ISO 1302. ISO 2768 and ISO 13715 provide tools for lncSceulng general toleranoes
5.13 ResponsIbility principle
Given the duality principle and the functional control principle, it is necessary to describe the closeness of a specification operator to the functional operator and the closeness of a verification operator to a specification operator The ambiguity of the ctesulp(lon ol the function and the ambiguity of the specification together desalbe the closeness of the specification operator to ihe functional operator. These ambiguities are the r.sponsility of the designer. The measurement uncertainty quantifies the closeness of the Verification operator to the specification operator. Unless otherwise stated, the measurement uncertainty is the responsibibty of the party who is providing proof of conformance or non-conformance with a speeiflcaticn; see
ISO 14253-1.
6 Rules for indication of default specification operators
6.1 General
Default GPS specifications are generally used to simpify the toterancing on technical drawings. A default specification operator can be spectfled In one at two waya, by indicating either a general ISO default GPS specification, or a general altered default GPS specification.
6,2 General ISO default GPS specification
When the
— ISO basic GPS specitication according to ISO 1101. ISO 1302, ISO 5459, etc., is the actual specification for any geometrical characteflstic on the thawing, and
— no general altered default GPS specification is Indicated in or near the title block,
then the ISO default specification operator is the one required by the current ISO standard defining the default specification operator in questlon The ISO standard defining the default specification operator in question is always the latest version avadable at the time of the preparation of the drawing. If reference to previous versions of that ISO standard le required, It shall be unambiguously stated.
NOTE Currently. ISO GPS standards do not provide defaults for all specification operations m at specification operators Consequently, many ISO detaull specatcabon operators are not complete.