EN ISO 3126:2005
(Main)Plastics piping systems - Plastics components - Determination of dimensions (ISO 3126:2005)
Plastics piping systems - Plastics components - Determination of dimensions (ISO 3126:2005)
ISO 3126:2005 specifies methods for measurement and/or determination of the dimensions of plastics pipes and fittings and the accuracy of the measurement. It specifies procedures for measuring angles, diameters, lengths, squareness and wall thicknesses for the purposes of checking conformity to geometric limits.
Kunststoff-Rorhleitungssysteme - Rohrleitungsteile aus Kunststoffen - Bestimmung der Maße (ISO 3126:2005)
Diese Norm legt Verfahren zur Messung und/oder Bestimmung der Maße von Rohren und Formstücken aus Kunststoffen sowie die Genauigkeit der Meßverfahren fest. Es werden Verfahren zum Messen von Winkeln, Durchmessern, Längen, Rechtwinkligkeit und Wanddicken festgelegt, um die Übereinstimmung mit geometrischen Grenzwerten zu überprüfen.
Systèmes de canalisations plastiques - Composants en plastiques - Détermination des dimensions (ISO 3126:2005)
La présente Norme européenne spécifie les méthodes de mesurage et/ou de détermination des dimensions des tubes et raccords en matières plastiques ainsi que la précision du mesurage.
Elle spécifie les modes opératoires de mesurage des angles, des diamètres, des longueurs, de la découpe à angle droit et de l'épaisseur des parois, afin de vérifier la conformité aux limites géométriques.
NOTE La présente norme utilise les unités métriques. Cependant, les modes opératoires et les tolérances sont applicables à d'autres unités en utilisant des coefficients de conversion appropriés.
Cevni sistemi iz polimernih materialov - Sestavni deli iz polimernih materialov – Ugotavljanje mer (ISO 3126:2005)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2005
Cevni sistemi iz polimernih materialov - Sestavni deli iz polimernih materialov –
Ugotavljanje mer (ISO 3126:2005)
Plastics piping systems - Plastics components - Determination of dimensions (ISO
3126:2005)
Kunststoff-Rorhleitungssysteme - Rohrleitungsteile aus Kunststoffen - Bestimmung der
Maße (ISO 3126:2005)
Systemes de canalisations plastiques - Composants en plastiques - Détermination des
dimensions (ISO 3126:2005)
Ta slovenski standard je istoveten z: EN ISO 3126:2005
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 3126
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2005
ICS 23.040.20; 23.040.45
English version
Plastics piping systems - Plastics components - Determination
of dimensions (ISO 3126:2005)
Systèmes de canalisations plastiques - Composants en Kunststoff-Rorhleitungssysteme - Rohrleitungsteile aus
plastiques - Détermination des dimensions (ISO Kunststoffen - Bestimmung der Maße (ISO 3126:2005)
3126:2005)
This European Standard was approved by CEN on 21 February 2003.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3126:2005: E
worldwide for CEN national Members.
Contents page
Foreword.3
1 Scope.4
2 Normative references .4
3 Terms, definitions and symbols .4
3.1 Terms and definitions.4
3.2 Symbols .4
4 Measuring devices .5
4.1 General requirements .5
4.2 Instruments .6
5 Determination of dimensions.6
5.1 General .6
5.2 Wall thicknesses .7
5.3 Diameters.8
5.4 Out-of-roundness .9
5.5 Pipe lengths .9
5.6 End squareness of pipes and fittings.10
6 Determination of other geometrical characteristics related to fittings .11
6.1 General .11
6.2 Bends .12
6.3 Branches .15
6.4 Reducers.17
7 Flanges, loose flanges and collar .18
7.1 General .18
7.2 Outside diameter of the flange, loose flange and collar.20
7.3 Bore diameter of the flange or collar.20
7.4 Bolt hole diameter .20
7.5 Bolt hole distribution.20
7.6 Concentricity of bolt circle diameter.20
7.7 Pitch circle diameter.20
7.8 Shoulder diameter of flange and collar .21
7.9 Flange and collar thickness .21
7.10 Length of the flange and collar.21
8 Other measurements .21
Bibliography .22
Foreword
This document (EN ISO 3126:2005) has been prepared by Technical Committee CEN /TC 155, "Plastics piping
systems and ducting systems", the secretariat of which is held by NEN in collaboration with Technical Committee
ISO/TC 138 "Plastics pipes, fittings and valves for the transport of fluids".
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 September 2005, and conflicting national standards shall be withdrawn at the
latest by September 2005.
This document is one of a series of standards on test methods, which support system standards for plastics piping
systems and ducting systems.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1 Scope
This document specifies methods for measurement and/or determination of the dimensions of plastics pipes and
fittings and the accuracy of the measurement.
It specifies procedures for measuring angles, diameters, lengths, squareness and wall thicknesses for the
purposes of checking conformity to geometric limits.
NOTE This document is using metric units. However the procedures and tolerances are applicable to other units by using
appropriate conversion factors.
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/R 463, Dial gauges reading in 0,01 mm, 0,001 in and 0,0001 in.
ISO 3599, Vernier callipers reading to 0,1 and 0,05 mm.
ISO 3611, Micrometer callipers for external measurement.
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method.
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
accuracy
closeness of agreement between a test result and the accepted reference value
NOTE The term "accuracy", when applied to a set of test results, involves a combination of random components and a
common systematic error or bias component (ISO 3534-1).
3.1.2
calibration
set of operations that establish, under specified conditions, the relationship between values of quantities indicated
by a measuring instrument or measuring system, or values represented by a material measure or a reference
material, and the corresponding values realised by standards
3.1.3
reference standard
internationally accepted definition of a given unit of measurement
3.2 Symbols
b : distance between the edge of a flange bolt hole and its bore
b : distance between the edge of a flange bolt hole and its outside diameter
b : distance between the centre of a flange bolt hole and its bore
b : distance between the centre of a flange bolt hole and its outside diameter
c : distance between the edges of two adjacent flange bolt holes
c : distance between the centres of two adjacent flange bolt holes
d : outside diameter of a (part of a) component
e
d : mean inside diameter of the main of a branch
i,m
d : outside diameter of a socket end
d : outside diameter of a spigot end
d : bore of a flange
d : diameter of a flange bolt hole
D : outside diameter of a flange
e : wall thickness of a component
k : pitch circle diameter of a flange
L : effective length of a branch
e,b
L : effective length of the main of a branch
e,m
L : effective length of a reducer
e,r
L : effective length of the socket end of a fitting
e,so
L : effective length of the spigot end of a fitting
e,sp
L : length of the straight part of a socket or a spigot end of a fitting
str
L : length of the tapered part of a reducer
t
L : maximum out-of-squareness distance from theoretical
L : measured distance from the root of the angle between a straight ruler and a reference surface to the
component along the surface
L : measured distance from the root of the angle between a straight ruler and a reference surface to the
component along the ruler
L : vertical distance from a reference surface to the nearest point of the upper end
L : socket insertion depth
L : overall length of a branch main
L : distance, measured in the centre-line plane of a branch, between the end of the branch spigot or socket to
the bottom of the main
L : overall length of a reducer
L : distance between the edges of two selected bolt holes of a flange
L : overall length of a flange in axial direction
γ : calculated angle of out-of-squareness
θ : angle of bend or branch
4 Measuring devices
4.1 General requirements
4.1.1 Accuracy of measuring devices
The measuring device shall be selected so that together with the associated procedures used the required
accuracy of the measured dimension is obtained.
4.1.2 Calibration
Device used for measuring shall be calibrated at regular intervals of time in accordance with the quality plan of the
user of this document. The calibration shall be traceable to an accredited reference standard (see 3.1.3).
4.2 Instruments
4.2.1 Contact instruments
4.2.1.1 In use the instruments shall not apply a force to the surface of the test piece that will cause local
deformation.
4.2.1.2 Measuring devices that require contact between the test piece and one or more surfaces, e.g. a tube
micrometer, shall conform to the following:
a) the surface in contact with the internal surface of a component shall have a radius less than that of the test
piece surface with which it is in contact;
b) the surface in contact with the external surface of a component shall be either flat or radiused;
c) the contact surface
...
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