SIST EN ISO 1167-2:2006
(Main)Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 2: Preparation of pipe test pieces (ISO 1167-2:2006)
- Abstract
ISO 1167-2:2006 specifies the dimensions and method for preparation of extruded or injection-moulded tubular test pieces, used to determine the resistance of thermoplastics pipes to internal hydrostatic pressure according to ISO 1167-1.
- Status
- Published
- Publication Date
- 31-Mar-2006
- Technical Committee
- PCV - Plastic pipes, fittings and valves
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Apr-2006
- Due Date
- 01-Apr-2006
- Completion Date
- 01-Apr-2006
SIST EN ISO 1167-2:2006 is the Slovenian adoption of EN ISO 1167-2:2006 for thermoplastics pipes, fittings and assemblies for the conveyance of fluids. It specifies how to prepare extruded or injection-moulded tubular test pieces for determining resistance to internal hydrostatic pressure, so laboratories and manufacturers can use the same specimen geometry before running the pressure test.
What does SIST EN ISO 1167-2:2006 specify?
SIST EN ISO 1167-2:2006 specifies the dimensions and preparation method for tubular test pieces used in internal pressure testing of thermoplastics pipes. It focuses on specimen preparation, while the pressure test itself is carried out according to ISO 1167-1.
The document is organized into six clauses:
- Scope
- Normative references
- Principle
- Apparatus
- Test pieces
- Test report
A bibliography closes the document and points to related methods for extrapolation and classification.
What are the key requirements of SIST EN ISO 1167-2:2006?
SIST EN ISO 1167-2:2006 mainly tells you what kind of test piece to prepare, how long and how large it must be, what to measure, and what to record. In practice, these rules matter because the specimen geometry affects the pressure test result and whether the test is valid for the intended material or pipe.
Clause 3 - which test pieces are used
Clause 3 says pipe test pieces may be prepared by extrusion or by injection moulding. Extruded test pieces are used for material and pipe testing, while injection-moulded tubular test pieces are used for testing injection moulding materials only.
Clause 3 also explains that injection-moulded tubular test pieces can be used to study time-related behaviour under hydrostatic pressure under the same conditions as extruded pipes. It also notes that the results may be extrapolated using a method such as ISO 9080 to determine MRS (minimum required strength) and support classification using ISO 12162.
Clause 4 - what apparatus is needed
Clause 4 requires end caps specified by the document that refers to ISO 1167-1. It also requires measuring equipment for wall thickness and mean outside diameter that conforms to ISO 3126.
In practice, this means the specimen dimensions must be checked with the same dimensional method used across plastic piping systems, because those measurements can be needed to calculate test pressure.
Clause 5.1 - extruded test pieces
For extruded test pieces, the free length between the end caps must be at least three times the nominal outside diameter d_n, with a minimum of 250 mm. For pipes with d_n greater than 315 mm, a shorter free length may be used, but not less than two times d_n unless the referring standard or specification says otherwise.
Clause 5.1 also requires the total length to allow movement between type B end caps and to make allowance for thermal expansion. That matters because the pipe must not be constrained in a way that changes the pressure test.
Clause 5.2 - injection-moulded tubular test pieces
Clause 5.2 limits the nominal outside diameter of injection-moulded test pieces to between 25 mm and 110 mm inclusive. Their free length, excluding the ends, is 3 d_n, except that for d_n of 50 mm and above the minimum free length is 140 mm.
It also notes that test pieces with a longitudinal fusion line and both ends open should preferably be used only for comparative and investigative purposes. This alerts users that moulding conditions can strongly affect the stresses in the specimen.
Clause 5.3 and Clause 6 - measurements and reporting
Clause 5.3 requires the minimum wall thickness and mean outside diameter of the free length to be determined when needed for calculating test pressure, using ISO 3126 methods without applying the ISO 3126 rounding-up procedure. Clause 6 requires the test report information needed by ISO 1167-1 and the manufacturing method of the test piece - extrusion or injection moulding.
What terms does SIST EN ISO 1167-2:2006 define?
- Extruded test pieces - Pipe specimens formed by extrusion and used for material and pipe testing.
- Injection-moulded tubular test pieces - Tubular specimens formed by injection moulding and used for testing injection moulding materials only.
- Free length - The length of the specimen between the end caps, or excluding the ends for injection-moulded test pieces.
- d_n (nominal outside diameter) - The nominal outside diameter used to set specimen dimensions and minimum lengths.
- MRS (minimum required strength) - A strength value that may be derived by extrapolation of hydrostatic test results for material classification.
- Hydrostatic pressure - Internal pressure applied for a specified time, or until failure, to assess resistance of the pipe material.
Who uses SIST EN ISO 1167-2:2006?
SIST EN ISO 1167-2:2006 is used by test laboratories, pipe and fitting manufacturers, and quality teams working with thermoplastics piping systems. It is also relevant to technical staff preparing specimens for pressure testing and to organizations that compare material performance over time.
The standard is especially useful where a manufacturer needs repeatable specimen preparation for internal pressure tests, or where injection-moulding materials for fittings are being assessed under the same hydrostatic conditions as extruded pipe.
What changed in SIST EN ISO 1167-2:2006 from the previous edition?
SIST EN ISO 1167-2:2006 is the first edition of ISO 1167-2. Together with ISO 1167-1, it replaces ISO 1167:1996, and together with ISO 1167-3 it replaces ISO 12092:2000 as a technical revision. The European adoption notes that it supersedes EN 921:1994.
Which standards are used with SIST EN ISO 1167-2:2006?
| Standard | What it contributes |
|---|---|
| ISO 1167-1:2006 | The general method for the internal hydrostatic pressure test, including conditioning and reporting items referred to by this part. |
| ISO 3126 | The dimensional measurement method for wall thickness and mean outside diameter. |
| ISO 9080 | A method for extrapolating long-term hydrostatic strength from test results. |
| ISO 12162 | Classification and designation of thermoplastics materials for pressure applications. |
| ISO 1167-3 | The companion part covering preparation of components. |
| ISO 1167-4 | The companion part covering preparation of assemblies. |
What does the SIST EN ISO 1167-2:2006 document contain?
SIST EN ISO 1167-2:2006 contains the specimen-preparation rules that support hydrostatic pressure testing of thermoplastics pipes. It gives the test-piece principle, the required apparatus, geometric limits for extruded and injection-moulded specimens, and the measurements needed for pressure calculation.
It also includes Figure 1 for injection-moulded test pieces and a bibliography that points to ISO 9080 and ISO 12162 for longer-term strength evaluation and material classification.
Relations
- Effective Date
- 01-Feb-2012
- Effective Date
- 01-Jul-2006
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN ISO 1167-2:2006 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 2: Preparation of pipe test pieces (ISO 1167-2:2006)". This standard covers: ISO 1167-2:2006 specifies the dimensions and method for preparation of extruded or injection-moulded tubular test pieces, used to determine the resistance of thermoplastics pipes to internal hydrostatic pressure according to ISO 1167-1.
ISO 1167-2:2006 specifies the dimensions and method for preparation of extruded or injection-moulded tubular test pieces, used to determine the resistance of thermoplastics pipes to internal hydrostatic pressure according to ISO 1167-1.
SIST EN ISO 1167-2:2006 is classified under the following ICS (International Classification for Standards) categories: 23.040.20 - Plastics pipes; 23.040.45 - Plastics fittings. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 1167-2:2006 has the following relationships with other standards: It is inter standard links to SIST ISO 1167:1997, SIST EN 921:1997, SIST-TS CEN/TS 16439:2013, SIST EN 13476-3:2007+A1:2009, SIST EN 50626-2:2023, SIST EN 14758-1:2012, SIST EN 13476-2:2025, SIST EN 17176-2:2019+A1:2022, SIST EN 1555-1:2021, SIST EN 12201-2:2011, SIST EN 1455-1:2023, SIST EN 14125:2013, SIST EN 1555-5:2010, SIST EN 1401-1:2019, SIST EN 17152-1:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 1167-2:2006 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC, 93/38/EEC; Standardization Mandates: M/BC/CEN/88/15. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN ISO 1167-2:2006 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2006
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SIST EN 921:1997
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Thermoplastics pipes, fittings and assemblies for the conveyance of fluids -
Determination of the resistance to internal pressure - Part 2: Preparation of pipe test
pieces (ISO 1167-2:2006)
Rohre, Formstücke und Bauteilkombinationen aus thermoplastischen Kunststoffen für
den Transport von Flüssigkeiten - Bestimmung der Widerstandsfähigkeit gegen inneren
Überdruck - Teil 2: Vorbereitung der Rohr-Probekörper (ISO 1167-2:2006)
Tubes, raccords et assemblages en matieres thermoplastiques pour le transport des
fluides - Détermination de la résistance a la pression interne - Partie 2: Préparation des
éprouvettes tubulaires (ISO 1167-2:2006)
Ta slovenski standard je istoveten z: EN ISO 1167-2:2006
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
23.040.45 Fitingi iz polimernih Plastics fittings
materialov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
FINAL DRAFT
prEN ISO 1167-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2005
ICS 23.040.45; 23.040.20 Will supersede EN 921:1994
English Version
Thermoplastics pipes, fittings and assemblies for the
conveyance of fluids - Determination of the resistance to internal
pressure - Part 2: Preparation of pipe test pieces (ISO/FDIS
1167-2:2005)
Tubes, raccords et assemblages en matières Rohre, Formstücke und Zubehör aus thermoplastischen
thermoplastiques pour le transport des fluides - Kunststoffen für den Transport von Flüssigkeiten -
Détermination de la résistance à la pression interne - Partie Bestimmung der Widerstandsfähigkeit gegen inneren
2: Préparation des éprouvettes tubulaires (ISO/FDIS 1167- Überdruck - Teil 2: Herstellung der Rohr-Probekörper
2:2005) (ISO/FDIS 1167-2:2005)
This draft European Standard is submitted to CEN members for parallel formal vote. It has been drawn up by the Technical Committee
CEN/TC 155.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre 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.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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. prEN ISO 1167-2:2005: E
worldwide for CEN national Members.
prEN ISO 1167-2:2005 (E)
Foreword
This document (prEN ISO 1167-2:2005) has been prepared by Technical Committee ISO/TC
138 "Plastics pipes, fittings and valves for the transport of fluids" in collaboration with
Technical Committee CEN/TC 155 "Plastics piping systems and ducting systems", the
secretariat of which is held by NEN.
This document is currently submitted to the parallel Formal Vote.
This document will supersede EN 921:1994.
Endorsement notice
The text of ISO 1167-2:2005 has been approved by CEN as prEN ISO 1167-2:2005 without
any modifications.
INTERNATIONAL ISO
STANDARD 1167-2
First edition
2006-02-01
Thermoplastics pipes, fittings and
assemblies for the conveyance of
fluids — Determination of the resistance
to internal pressure —
Part 2:
Preparation of pipe test pieces
Tubes, raccords et assemblages en matières thermoplastiques pour le
transport des fluides — Détermination de la résistance à la pression
interne —
Partie 2: Préparation des éprouvettes tubulaires
Reference number
ISO 1167-2:2006(E)
©
ISO 2006
ISO 1167-2:2006(E)
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ii © ISO 2006 – All rights reserved
ISO 1167-2:2006(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Principle. 1
4 Apparatus . 2
5 Test pieces . 2
5.1 Extruded test pieces. 2
5.2 Injection-moulded tubular test pieces. 2
5.3 Measurement of dimensions . 2
6 Test report . 2
Bibliography .
...