ISO 9854-2 — Charpy impact test conditions for thermoplastics pipes

ISO 9854-2:2023 specifies the selected test parameters used when determining Charpy impact properties of thermoplastics pipes for fluid transport, used together with ISO 9854-1.

Because this part focuses on test conditions (not a complete standalone method), labs typically use it to choose the correct impact energy, specimen configuration, supports, and test temperature for a given pipe material. If you need help matching the cited edition to your pipe material and specimen type, contact our team.

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ISO 9854-2:2023 — Thermoplastics pipes for the transport of fluids — Determination of Charpy impact properties — Part 2: Test conditions for pipes of various materials

ISO 9854-2 is part of the ISO 9854 series for Charpy pendulum impact testing of thermoplastics pipes. This part defines the test-condition choices that apply when running the ISO 9854-1 procedure for specific pipe materials and specimen configurations.

Document type: Test-conditions standard used in combination with ISO 9854-1 (it is primarily a parameter-selection reference rather than a full independent test method).


Quick Definition

Defines the parameter values/options (such as impact energy, specimen dimensions and type, supports, and test temperature) for Charpy pendulum impact testing of unnotched and notched specimens taken from thermoplastics pipes, when testing to ISO 9854-1.


What This Standard Covers

ISO 9854-2 covers the selection of test conditions for Charpy impact resistance testing of thermoplastics pipe specimens. It addresses both unnotched and notched specimens and is intended to ensure that comparable, material-appropriate settings are used across labs.

Typical parameter categories addressed: Impact energy selection, specimen dimensions, specimen type, specimen supports, and test temperature.


Why This Standard Matters in Testing

Charpy impact results for pipe materials are sensitive to setup choices such as temperature and striker energy. ISO 9854-2 helps standardize those choices so that impact performance comparisons are meaningful for a given thermoplastics pipe material and specimen configuration.

For procurement and QA/QC teams, this part is often the key reference used to confirm that the lab’s impact test settings align with the material under evaluation and the way the pipe specimen is supported during impact.


Common Materials, Product Types, or Applications Covered

This standard applies to thermoplastics pipes used for transport of fluids. It is written for multiple common pipe polymers and families used across building services, industrial piping, and pressure/non-pressure piping applications.

Common product context: Extruded thermoplastics piping systems where impact resistance is assessed using Charpy pendulum impact testing on specimens derived from pipe.


Common Test or Verification Workflow

ISO 9854-2 is typically used as the “setup decision” step before testing to ISO 9854-1.

  • Select the pipe material and the specimen type (unnotched or notched) required for the job.
  • Use ISO 9854-2 to select the applicable test-condition options for that material (including impact energy, supports, and test temperature).
  • Prepare specimens from pipe as required by the ISO 9854 approach.
  • Condition specimens to the selected test temperature.
  • Run the Charpy pendulum impact test in accordance with ISO 9854-1, using the ISO 9854-2-selected conditions.
  • Report results with the cited ISO 9854-1 and ISO 9854-2 edition/year so settings are unambiguous.

Equipment Commonly Used for This Standard

Because ISO 9854-2 controls test-condition choices, equipment selection usually focuses on achieving the required impact energy range and temperature conditioning while supporting pipe-derived specimens correctly.

Common equipment: Charpy pendulum impact tester (with suitable striker and energy range), specimen supports/anvils appropriate to the ISO 9854 configuration, notching equipment when notched specimens are required, and temperature-conditioning equipment (environmental chamber or cooling/heating setup) capable of holding the required test temperature during conditioning and test transfer.

If you are comparing pendulum capacities, striker options, guarding, or temperature-conditioning workflows for ISO 9854 testing, you can request a detailed quote for a configuration that matches your material set and throughput.


How to Read This Designation or Revision

ISO 9854-2 identifies Part 2 of the ISO 9854 series (Charpy impact properties for thermoplastics pipes). The year suffix (for example, :2023) indicates the publication year of the cited edition.

When reviewing customer specifications or compliance documents, confirm both the part number (9854-2) and the edition/year, since test-condition selections can be tied to the cited revision.


Related Standards, Methods, or Frameworks

ISO 9854-2 is used in conjunction with the companion procedure standard:

  • ISO 9854-1: Charpy impact testing procedure for thermoplastics pipes (Part 1).

In most lab documentation, ISO 9854-1 and ISO 9854-2 are cited together to fully define both the test method and the test-condition selections.


Talk with us about ISO 9854-2 testing setups

If you need to align an impact tester, striker/energy range, specimen support hardware, and temperature-conditioning workflow to a customer callout of ISO 9854-2, talk with our team and we’ll help you map the requirement to a practical lab configuration.