ISO 8513: GRP pipes — initial longitudinal tensile strength

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ISO 8513 describes test methods for determining the initial longitudinal tensile strength and ultimate elongation of glass-reinforced thermosetting plastic (GRP) pipes. To match a setup to this test, talk with our team.

What ISO 8513 Measures

The test loads a GRP pipe or specimen along its axis to determine longitudinal tensile strength and elongation, which govern how the pipe handles axial loads such as bending and thermal movement.

How the Test Is Run

An axial specimen from the pipe is pulled in tension until failure, and strength and ultimate elongation are calculated from the load, cross-section, and measured strain.

Preparing Specimens

End tabs or reinforcement are often needed so failure occurs in the gauge length. To configure GRP pipe tensile testing, request a quote.

Reading the Designation

Cited as ISO 8513:YYYY. Confirm the edition and specimen preparation.

Related Standards

ISO 8521 covers circumferential wall strength and EN 1394 covers hoop strength for GRP pipes.

Request a Quote

Testing GRP pipe longitudinal strength? Request a quote and our team will help you build a system matched to your pipe diameter and fixturing.

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Equip your lab for ISO 8513 with TensileMill CNC

TensileMill CNC designs and builds the systems labs use for standards-based mechanical testing. For this work we supply universal testing machines, wedge or pneumatic grips, and flat and round specimen-preparation systems. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.