EN ISO 10360-5:2010

SLOVENSKI STANDARD
01-december-2011
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SIST EN ISO 10360-5:2001
SIST ISO 10360-5:2002
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Geometrical product specifications (GPS) - Acceptance and reverification tests for
coordinate measuring machines (CMM) - Part 5: CMMs using single and multiple stylus
contacting probing systems (ISO 10360-5:2010)
Geometrische Produktspezifikation (GPS) - Annahmeprüfung und Bestätigungsprüfung
für Koordinatenmessgeräte (KMG) - Teil 5: Prüfung der Antastabweichungen von KMG
mit berührendem Messkopfsystem (ISO 10360-5:2010)
Spécification géométrique des produits (GPS) - Essais de réception et de vérification
périodique des machines à mesurer tridimensionnelles (MMT) - Partie 5: MMT utilisant
des systèmes de palpage à stylet simple et à stylets multiples (ISO 10360-5:2010)
Ta slovenski standard je istoveten z: EN ISO 10360-5:2010
ICS:
17.040.30 Merila Measuring instruments
17.040.40 6SHFLILNDFLMDJHRPHWULMVNLK Geometrical Product
YHOLþLQL]GHOND*36 Specification (GPS)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10360-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2010
ICS 17.040.30 Supersedes EN ISO 10360-5:2000
English Version
Geometrical product specifications (GPS) - Acceptance and
reverification tests for coordinate measuring machines (CMM) -
Part 5: CMMs using single and multiple stylus contacting probing
systems (ISO 10360-5:2010)
Spécification géométrique des produits (GPS) - Essais de Geometrische Produktspezifikation (GPS) -
réception et de vérification périodique des machines à Annahmeprüfung und Bestätigungsprüfung für
mesurer tridimensionnelles (MMT) - Partie 5: MMT utilisant Koordinatenmessgeräte (KMG) - Teil 5: Prüfung der
des systèmes de palpage à stylet simple ou à stylets Antastabweichungen von KMG mit berührendem
multiples (ISO 10360-5:2010) Messkopfsystem (ISO 10360-5:2010)
This European Standard was approved by CEN on 12 June 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10360-5:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
The text of ISO 10360-5:2010 has been prepared by Technical Committee ISO/TC 213 “Dimensional and
geometrical product specifications and verification” of the International Organization for Standardization (ISO)
and has been taken over as EN ISO 10360-5:2010 by Technical Committee CEN/TC 290 “Dimensional and
geometrical product specification and verification” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at
the latest by March 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 10360-5:2000.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 10360-5:2010 has been approved by CEN as a EN ISO 10360-5:2010 without any
modification.
INTERNATIONAL ISO
STANDARD 10360-5
Second edition
2010-09-15
Geometrical product specifications
(GPS) — Acceptance and reverification
tests for coordinate measuring machines
(CMM) —
Part 5:
CMMs using single and multiple stylus
contacting probing systems
Spécification géométrique des produits (GPS) — Essais de réception et
de vérification périodique des machines à mesurer tridimensionnelles
(MMT) —
Partie 5: MMT utilisant des systèmes de palpage à stylet simple et à
stylets multiples
Reference number
ISO 10360-5:2010(E)
©
ISO 2010
ISO 10360-5:2010(E)
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ii © ISO 2010 – All rights reserved

ISO 10360-5:2010(E)
Contents Page
Foreword .v
Introduction.vi
1 Scope.1
2 Normative references.2
3 Terms and definitions .2
4 Symbols.6
5 Requirements for metrological characteristics.7
5.1 Single-stylus probing error .7
5.2 Single-stylus probing configuration.8
5.3 Multi-stylus probing errors and values .8
5.4 Multi-stylus probing configurations .9
5.5 Styli .9
5.6 Environmental conditions .9
5.7 Operating conditions .9
6 Acceptance tests and reverification tests .10
6.1 General .10
6.2 Single-stylus probing configuration.10
6.2.1 Application .10
6.2.2 Principle.10
6.2.3 Measuring equipment .10
6.2.4 Procedure.11
6.2.5 Derivation of test results .12
6.3 Fixed multi-probe and multi-stylus probing systems.12
6.3.1 Principle.12
6.3.2 Measuring equipment .13
6.3.3 Procedure.14
6.3.4 Data analysis.15
6.4 Articulating probing systems.16
6.4.1 Principle.16
6.4.2 Measuring equipment .17
6.4.3 Procedure.17
6.4.4 Data analysis.19
7 Compliance with specification.19
7.1 Acceptance tests .19
7.2 Reverification tests .20
8 Applications .20
8.1 Acceptance tests .20
8.2 Reverification tests .20
8.3 Interim checks .20
9 Indication in product documentation and data sheets.21
Annex A (informative) Symbols and subscripts .23
Annex B (informative) Checking the probing system prior to the ISO 10360-2 test .24
Annex C (informative) Interpretation of multi-stylus test results.25
Annex D (normative) Maximum permissible error/limit figures.27
ISO 10360-5:2010(E)
Annex E (informative) Relation to the GPS matrix model .28
Bibliography .30

iv © ISO 2010 – All rights reserved

ISO 10360-5:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10360-5 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
This second edition cancels and replaces the first edition (ISO 10360-5:2000), which has been technically
revised, and ISO/PAS 12868:2009.
ISO 10360 consists of the following parts, under the general title Geometrical Product Specifications (GPS) —
Acceptance and reverification tests for coordinate measuring machines (CMM):
⎯ Part 1: Vocabulary
⎯ Part 2: CMMs used for measuring linear dimensions
⎯ Part 3: CMMs with the axis of a rotary table as the fourth axis
⎯ Part 4: CMMs used in scanning measuring mode
⎯ Part 5: CMMs using single and multiple stylus contacting probing systems
⎯ Part 6: Estimation of errors in computing Gaussian associated features
⎯ Part 7: CMMs equipped with video probing systems
⎯ Part 9: CMMs with multiple probing systems
The following parts are under preparation:
⎯ Part 8: CMMs with optical distance sensors
⎯ Part 10: Laser trackers for measuring point-to-point distances
ISO 10360-5:2010(E)
Introduction
This part of ISO 10360 is a geometrical product specification (GPS) standard and is to be regarded as a
general GPS standard (see ISO/TR 14638). It influences chain link 5 of the chains of standards of size,
distance, radius, angle, form, orientation, location, run-out and datums.
For more detailed information on the relation of this part of ISO 10360 to other standards and the GPS matrix
model, see Annex E.
The acceptance and reverification tests described in this part of ISO 10360 are applicable to coordinate
measuring machines (CMMs) that use contacting probes, with or without multiple styli or multiple articulated-
probe positions, when measuring a workpiece.
Experience has shown that the multi-stylus errors calculated using this part of ISO 10360 are significant and,
at times, the dominant errors in the CMM. Owing to the virtually infinite variety of modern CMM probing
system configurations, the tests specified by this part of ISO 10360 have been limited to providing a testing
format only. The tests are intended to provide information on the ability of a CMM to measure a feature or
features, using a contacting probe and, when relevant, using multiple styli, multiple probes or multiple
articulated-probe positions.
The situations to which they are applicable include
⎯ single-stylus probing systems,
⎯ multiple styli connected to the CMM probe (e.g. a star),
⎯ installations using an articulating probing system (motorized or manual) that can be prequalified,
⎯ installations using a repeatable probe-changing system,
⎯ installations using a repeatable stylus-changing system, and
⎯ multi-probe installations.
It is believed that the procedures given in this part of ISO 10360 will be helpful in identifying CMM system
uncertainty components for specific measurement tasks, and that the user will be able to reduce errors by
removing contributing elements such as long probe extensions and styli, then retesting the new configuration
set.
The tests in this part of ISO 10360 are sensitive to many errors attributable to both the CMM and the probing
system, and are to be performed in addition to the length-measuring tests given in ISO 10360-2.
The primary objective is to determine the practical performance of the complete CMM and probing system.
Therefore, the tests are designed to reveal measuring errors which are likely to occur when such a combined
system is used on real workpieces, e.g. errors generated by the interaction between large probe-tip-offset
lengths and uncorrected CMM rotation errors. The errors found here differ from those found in the E tests in
L
ISO 10360-2:2009, 6.5, because with multiple styli the net CMM travel may be very different from the
measured length. See Annex C for more information.

vi © ISO 2010 – All rights reserved

INTERNATIONAL STANDARD ISO 10360-5:2010(E)

Geometrical product specifications (GPS) — Acceptance and
reverification tests for coordinate measuring machines
(CMM) —
Part 5:
CMMs using single and multiple stylus contacting probing
systems
1 Scope
This part of ISO 10360 specifies acceptance and periodic reverification tests of CMM performance with
contacting probing systems and is only applicable to CMMs using
⎯ any type of contacting probing system,
⎯ a discrete point probing mode, and
⎯ spherical or hemispherical stylus tip(s).
It complements ISO 10360-7, which is the module for CMMs with video probing systems, and ISO 10360-2,
which is universal, i.e. not probe-type specific.
NOTE It is the CMM probing performance tests which are specified by the maximum permissible errors (MPEs), due
to the impracticality of isolating the performance of the probing system from that of the CMM, even on a small artefact
such as a test sphere.
This part of ISO 10360 applies to CMMs supplied with any of the following:
a) single-stylus probing system;
b) multi-stylus probing systems with fixed multiple styli attached to a single probe (e.g. “star” stylus);
c) multiple probing systems such as those with a stylus for each of their probes;
d) systems with articulating probing;
e) stylus and probe changing systems;
f) manual (non-driven) CMMs.
This part of ISO 10360 is not applicable to non-contacting probing systems, which require different testing
procedures.
The terms “multi-stylus size error”, etc., should strictly be written “combined CMM and multi-stylus probing-
system size error”, etc. For convenience, the wording has been truncated.
If it is desired to isolate the probing-system performance as far as is practical, the influence of the CMM can
be minimized. See Annex C for more information.
ISO 10360-5:2010(E)
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 10360-1:2000, Geometrical Product Specifications (GPS) — Acceptance and reverification tests for
coordinate measuring machines (CMM) — Part 1: Vocabulary
ISO 10360-2:2009, Geometrical Product Specifications (GPS) — Acceptance and reverification tests for
coordinate measuring machines (CMM) — Part 2: CMMs used for measuring linear dimensions
ISO 14253-1, Geometrical Product Specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 1: Decision rules for proving conformance or non-conformance with
specifications
ISO/IEC Guide 99, International vocabulary of metrology — Basic and general concepts and associated terms
(VIM)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10360-1, ISO 14253-1,
ISO/IEC Guide 99 and the following apply.
NOTE This clause contains eight definitions (3.6 to 3.13) which supersede fourteen similar definitions in Clause 9 of
ISO 10360-1:2000. Some of these revised definitions are required to avoid ambiguities which would otherwise have been
introduced with this edition of ISO 10360-5. Others effectively supersede identical definitions in ISO 10360-1, because the
symbols used have been revised and expanded for clarification. The superseded definitions are 9.3, 9.4 and 9.15 to 9.26.
3.1
inferred probing-system qualification
probing-system qualification method where the parameters for each probing system attached to an articulation
system are inferred by interpolation, extrapolation, or other relevant model, for significantly different angular
position(s) from parameters acquired by empirical probing-system qualification (3.3) at a few angular
positions
3.2
angular positioning device qualification
establishment of the parameters of the angular positioning device in an articulating probing system necessary
for subsequent inferred probing-system qualification (3.1)
3.3
empirical probing-system qualification
probing-system qualification method where the parameters for each probing system attached to an articulation
system must be acquired by measurement of the reference sphere at each angular position used
3.4
effective stylus tip diameter
diameter used for the tip correction vector, for compensating measured feature size, etc.
NOTE 1 For the position of the tip correction vector, see ISO 10360-1:2000, Figure 4.
NOTE 2 The effective stylus tip diameter may be a parameter established by a probing-system qualification.
3.5
probing-system pre-qualification
probing-system qualification which is separated from subsequent measurement by probe or stylus change(s),
and/or articulating probing-system re-orientation(s)
2 © ISO 2010 – All rights reserved

ISO 10360-5:2010(E)
3.6
multi-stylus form (measurement) error
P
FTj
error of indication within which the range of Gaussian radial distances can be determined by a least-squares
fit of points measured on a test sphere, the measurements being taken with five different styli on the one test
sphere located anywhere in the measuring volume by a CMM using the discrete-point probing mode
See ISO 10360-1:2000, Figure 15.
NOTE 1 The character P in P indicates that the error is associated with the probing-system performance, and the
FTj
subscript F indicates that it is a form error. The subscript T indicates that the probing system conforms to Clause 1 of this
part of ISO 10360 (i.e. tactile), thus enabling any alternative probing system to be clearly identified by the use of a different
character at * in P .
F*j
NOTE 2 There are four multi-stylus form errors based on different probing systems and methods of operation. These
are designated as follows:
j = E, an articulating probing system using empirical qualification;
j = I, an articulating probing system using inferred qualification;
j = M, a fixed multi-stylus probing system;
j = N, a fixed multi-probe system.
NOTE 3 All the symbols used in this part of ISO 10360 are listed in Annex A.
3.7
multi-stylus size error
P
STj
error of indication within which the diameter of a test sphere can be determined by a least-squares fit of points,
the measurements being taken with five different styli on the one test sphere located anywhere in the
measuring volume by a CMM using the discrete-point probing mode
NOTE 1 The subscript S in P indicates that it is a size error.
STj
NOTE 2 All the symbols used in this part of ISO 10360 are listed in Annex A.
3.8
multi-stylus location value
P
LTj
maximum of the ranges of the X, Y and Z coordinates within which the location of a test sphere can be
determined by a least-squares fit of points, the measurements being taken with five different styli on the one
test sphere located anywhere in the measuring volume by a CMM using the discrete-point probing mode
NOTE 1 The subscript L in P indicates that it is a location value.
LTj
NOTE 2 All the symbols used in this part of ISO 10360 are listed in Annex A.
NOTE 3 All values are absolute.
3.9
single-stylus form error
P
FTU
error of indication within which the range of radii can be determined by a least-squares fit of points measured
on a test sphere, the measurements being performed by a CMM with a single stylus, using the discrete-point
probing mode, with points taken on the test sphere located anywhere in the measuring volume
See ISO 10360-1:2000, Figure 15.
ISO 10360-5:2010(E)
NOTE 1 The character P in P indicates that the error is related primarily to the probing-system performance. The
FTU
subscript U indicates use of a single (unique) stylus.
NOTE 2 See 3.6 for information on F and T.
NOTE 3 All such characters used in this part of ISO 10360 are listed in Annex A.
NOTE 4 P is identical to P in ISO 10360-2:2001.
FTU
3.10
single-stylus size error
P
STU
error of indication of the difference between the diameter of a least-squares fit of points measured on a test
sphere and its calibrated diameter, the measurements being performed by a CMM with a single stylus, using
the discrete-point probing mode, with points taken on the test sphere located anywhere in the measuring
volume
NOTE 1 The character P in P indicates that the error is related primarily to the probing-system performance. The
STU
subscript U indicates use of a single (unique) stylus. The subscript S in P indicates that it is a size error.
STj
NOTE 2 All such characters used in this part of ISO 10360 are listed in Annex A.
3.11
maximum permissible multi-stylus form error
P
FTj, MPE
extreme value of the multi-stylus form error (3.6), P , permitted by specifications, regulations, etc. for a
FTj
CMM
NOTE 1 The maximum permissible value of the multi-stylus form error, P , can be expressed in one of three
FTj, MPE
forms:
a) P = minimum of (A + L /K) and B; or
FTj, MPE P
b) P = (A + L /K); or
FTj, MPE P
c) P = B
FTj, MPE
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere, in millimetres;
P
B is the maximum permissible error P , in micrometres, as stated by the manufacturer.
FTj, MPE
These forms are shown in Figures D.1, D.2 and D.3.
NOTE 2 A maximum permissible error (MPE) as opposed to a maximum permissible limit (MPL) specification is used
when the test measurements determine errors; hence, testing an MPE specification requires the use of calibrated artefacts.
NOTE 3 P can be specified by probe-tip-offset length or by the stylus system description.
FTj, MPE
3.12
maximum permissible multi-stylus size error
P
STj, MPE
extreme value of the multi-stylus size error (3.7), P , permitted by specifications, regulations, etc. for a
STj
CMM
4 © ISO 2010 – All rights reserved

ISO 10360-5:2010(E)
NOTE 1 The maximum permissible value of the multi-stylus size error, P , can be expressed in one of three
STj, MPE
forms:
a) P = minimum of (A + L /K) and B; or
STj, MPE P
b) P = (A + L /K); or
STj, MPE P
c) P = B
STj, MPE
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere, in millimetres;
P
B is the maximum permissible error P , in micrometres, as stated by the manufacturer.
STj, MPE
These forms are shown in Figures D.1, D.2 and D.3.
NOTE 2 A maximum permissible error (MPE) as opposed to a maximum permissible limit (MPL) specification is used
when the test measurements determine errors; hence, testing an MPE specification requires the use of calibrated artefacts.
NOTE 3 P can be specified by probe-tip-offset length or by the stylus system description.
STj, MPE
3.13
maximum permissible limit of the multi-stylus location value
P
LTj, MPL
extreme value of the multi-stylus location value (3.8), P , permitted by specifications, regulations, etc. for
LTj
a CMM
NOTE 1 The maximum permissible limit of the multi-stylus location value, P , can be expressed in one of three
LTj, MPL
forms:
a) P = minimum of (A + L /K) and B; or
LTj, MPL P
b) P = (A + L /K); or
LTj, MPL P
c) P = B
LTj, MPL
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere, in millimetres;
P
B is the maximum permissible limit P , in micrometres, as stated by the manufacturer.
LTj, MPL
These forms are shown in Figures D.1, D.2 and D.3.
NOTE 2 A maximum permissible limit (MPL) as opposed to a maximum permissible error (MPE) specification is used
when the test measurements are not errors; hence, testing an MPL specification does not require the use of artefacts with
a relevant calibration.
NOTE 3 P can be specified by the probe-tip-offset length or by the stylus system description.
LTj, MPL
ISO 10360-5:2010(E)
3.14
maximum permissible single-stylus form error
P
FTU, MPE
extreme value of the single-stylus form error (3.9), P , permitted by specifications, regulations, etc. for a
FTU
CMM
See ISO 10360-1:2000, Figure 15.
NOTE 1 P can be specified by probe-tip-offset length or by the stylus system description.
FTU, MPE
NOTE 2 P is identical to MPE in ISO 10360-2:2001.
FTU, MPE P
4 Symbols
For the purpose of this document, the symbols of Table 1 apply.
Table 1 — Symbols
Symbol Meaning
A Positive constant, expressed in micrometres and supplied by the manufacturer, used to express a maximum
permissible limit or error
K Dimensionless positive constant supplied by the manufacturer, used to express a maximum permissible limit
or error
L Distance in 3D between the centres of the reference sphere and the test sphere, in millimetres

P
B Maximum permissible error (e.g. P ) or limit (e.g. P ), in micrometres, as stated by the
FTj, MPE LTj, MPL
manufacturer
R Gaussian radial distance
l Fixed multi-stylus probing-system stylus length
l Single-stylus length
U
l Fixed multi-probe-tip-offset length
O
l Articulating probing-system probe-tip-offset length
A
X, Y, Z Centre coordinates
E Length measurement error with minimal probe-tip-offset length
E Maximum permissible error of length measurement with minimal probe-tip-offset length
0, MPE
E Length measurement error with probe-tip-offset length L
L
E Maximum permissible error of length measurement
L, MPE
j = E Articulating probing system using empirical qualification
j = I Articulating probing system using inferred qualification
j = M Fixed multi-stylus probing system
j = N Fixed multi-probe system
P
FTE
P
FTI
Multi-stylus form error, P
FTj
P
FTM
P
FTN
6 © ISO 2010 – All rights reserved

ISO 10360-5:2010(E)
Table 1 (continued)
Symbol Meaning
P
STE
P
STI
Multi-stylus size error, P
STj
P
STM
P
STN
P
LTE
P
LTI
Multi-stylus location value, P
j
LT
P
LTM
P
LTN
P Single-stylus form error
FTU
P Single-stylus size error
STU
P
FTE, MPE
P
FTI, MPE
Maximum permissible multi-stylus form error, P
FTj, MPE
P
FTM, MPE
P
FTN, MPE
P
STE, MPE
P
STI, MPE
Maximum permissible multi-stylus size error, P
STj, MPE
P
STM, MPE
P
STN, MPE
P
LTE, MPL
P
LTI, MPL
Maximum permissible limit of the multi-stylus location value, P
LTj, MPL
P
LTM, MPL
P
LTN, MPL
P Maximum permissible single-stylus form error
FTU, MPE
5 Requirements for metrological characteristics
5.1 Single-stylus probing error
The single-stylus form error, P , shall not exceed the maximum permissible single-stylus form error,
FTU
P , as stated by
FTU, MPE
⎯ the manufacturer, in the case of acceptance tests, or
⎯ the user, in the case of reverification tests.
The single-stylus form error, P , and the maximum permissible single-stylus form error, P , are
FTU FTU, MPE
expressed in micrometres.
NOTE 1 The single-stylus probing error also applies to CMMs used with fixed multiple probes, fixed multiple styli and
articulating probing systems (see 6.2.1).
NOTE 2 The influences that contribute to the single-stylus form error, P , are also normally manifested in the values
FTU
found for E and E in ISO 10360-2.
0 L
ISO 10360-5:2010(E)
5.2 Single-stylus probing configuration
The limits of the probing-system configuration (stylus, stylus extensions, stylus orientation, weight of stylus
system, etc.) to which the stated value of P applies shall be stated by
FTU, MPE
⎯ the manufacturer, in the case of acceptance tests, or
⎯ the user, in the case of reverification tests.
In both cases, the user is free to choose the way in which the components of the probing system are
configured within the specified limits, and the requirements of 6.2, as relevant.
Use of a stylus relevant to a typical workpiece measuring task is recommended.
NOTE 1 An articulating probing system used at a single angular position, with a single stylus, is deemed to be a single-
stylus probing system.
NOTE 2 The limits of the probing-system configuration in this subclause may differ from those in 5.4.
5.3 Multi-stylus probing errors and values
On fixed multi-stylus probing systems, the multi-stylus form and size errors, P , P , and the value P
FTM STM LTM
shall not exceed the corresponding maximum permissible errors, P , P , and maximum
FTM, MPE STM, MPE
permissible limit P .
LTM, MPL
On fixed multi-probe systems, the multi-stylus form and size errors, P , P , and the value P shall not
FTN STN LTN
exceed the corresponding maximum permissible errors, P , P , and maximum permissible limit
FTN, MPE STN, MPE
P .
LTN, MPL
On articulating probing systems using inferred probing-system qualification, the multi-stylus form and size
errors, P , P , and the value P , shall not exceed the corresponding maximum permissible errors,
FTI STI LTI
P , P , and maximum permissible limit P .
FTI, MPE STI, MPE LTI, MPL
On articulating probing systems using empirical probing-system qualification, the multi-stylus form and size
errors, P , P , and the value P , shall not exceed the corresponding maximum permissible errors,
FTE STE LTE
P , P , and maximum permissible limit P .
FTE, MPE STE, MPE LTE, MPL
The maximum permissible errors, P and P , and maximum permissible limit, P , are
FTj, MPE STj, MPE LTj, MPL
stated by
⎯ the manufacturer, in the case of acceptance tests, or
⎯ the user, in the case of reverification tests.
The errors and values, and their corresponding maximum permissible errors and limits, are expressed in
micrometres.
NOTE Multi-stylus probing performance is broadly categorized into form-related (P ) and size-related (P ) errors,
FTj STj
and location-related (P ) values. Different combinations of these will be important for the uncertainty of the different
LTj
measurement tasks. For example, the form and size results may contain information on the ability of the CMM system to
use multiple stylus tip diameters in the measurement of a single geometrical feature. See also Annex C.
For articulating systems, data for only one method, either inferred or empirical, are required.
8 © ISO 2010 – All rights reserved

ISO 10360-5:2010(E)
5.4 Multi-stylus probing configurations
The limits of the probing-system configuration (stylus, stylus extensions, probe extensions, weight of stylus
system, etc.) to which the stated values of MPE and MPL apply shall be stated by
⎯ the manufacturer, in the case of acceptance tests, or
⎯ the user, in the case of reverification tests.
In both cases, the user is free to choose the way in which the components of the probing system are
configured within the specified limits and the requirements of 6.3 or 6.4, as relevant.
A manufacturer may exclude the use of stylus tips of different nominal diameters in the measurement of a
single geometric feature, by declaring this restriction in the manufacturer's list of approved styli (see 5.5).
NOTE 1 The limits of the probing-system configuration in this subclause may differ from those in 5.2.
NOTE 2 An articulating probing system used at multiple angular positions, even when used with a single stylus, is
deemed to be a multi-stylus probing system.
5.5 Styli
The styli used in the tests specified in Clause 6 shall be those approved by the CMM manufacturer for use
with the CMM, i.e. made of the same material, of the same stylus-shaft diameter and nominal length, and
having the same stylus-tip quality. However, it is recognized that the exact stylus lengths used for test
procedures might not be available, and therefore, a stylus-length variation of 6 mm or 10 % of the nominal
length, whichever is the greater, may be used.
5.6 Environmental conditions
Limits for permissible environmental conditions such as temperature conditions, air humidity and vibration at
the site of installation that influence the measurements shall be specified by
⎯ the manufacturer, in the case of acceptance tests, or
⎯ the user, in the case of reverification tests.
In both cases, the user is free to choose the environmental conditions under which the testing in this part of
ISO 10360-5 will be performed within the manufacturer's specified limits given in the CMM data sheet.
The user is responsible for providing the environment enclosing the CMM as specified by the manufacturer in
the data sheet. If the environment does not meet the specifications, then none of the maximum permissible
errors or limits in this part of ISO 10360 can be required to be verified.
5.7 Operating conditions
For the tests specified in Clause 6, the CMM shall be operated using the procedures given in the
manufacturer's operating manual. Specific areas of the manufacturer's manual to be adhered to include
a) machine start up/warm up cycles,
b) stylus system configuration and assembly,
c) cleaning procedures for the stylus tip, test sphere and reference sphere,
d) probing-system qualification,
e) when specified by the manufacturer, the location of the reference sphere as stated in the operating
manual.
ISO 10360-5:2010(E)
All stylus tips, the reference sphere and the test sphere shall be cleaned before the probing-system
qualification to eliminate residual film which might affect the measuring or test results.
IMPORTANT — Ensuring that approximate thermal equilibrium of the probing system is achieved
during the probing-system qualification and testing procedure is critical.
6 Acceptance tests and reverification tests
6.1 General
In the following subclauses
⎯ acceptance tests are executed according to the manufacturer's specifications and procedures, and
⎯ reverification tests are executed according to the user's specifications and the manufacturer's procedures.
6.2 Single-stylus probing configuration
6.2.1 Application
Subclause 6.2 applies to the single-stylus probing configuration and CMMs used with fixed multiple probes,
fixed multiple styli and articulating probing systems. One of the multiple probes, or one of the multiple styli, or
one of the articulating orientations, may be used for this test. See 6.2.4.1 for their orientation.
6.2.2 Principle
The principle of this test procedure is to measure a test sphere using 25 points probed with a single stylus and
to attribute the observed form error to the probing system. A least-squares (i.e. Gaussian) sphere fit of the
25 points is examined for the form errors of indication. This analysis yields the single-stylus form error P .
FTU
The results of these tests may be highly dependent on the stylus length. Therefore, a series of stylus lengths
is considered (see Figure 1); only those lengths the CMM manufacturer specifies as applicable to the probing
system (see 5.2) shall be eligible for test.
Single-stylus length MPE(PFTU)
l µm
u
l = 20 mm
u
l = 30 mm
u
l = 50 mm
u
l = 100 mm
u
Figure 1 — Sample single-stylus configuration specification sheet
6.2.3 Measuring equipment
The material standard of size, i.e. the test sphere, shall have a diameter not less than 10 mm and not g
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