ISO 16770 (FNCT): Environmental stress cracking of polyethylene

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ISO 16770 is the Full-Notch Creep Test (FNCT) for the environmental stress cracking resistance of polyethylene under a defined chemical environment. To match this to your program, talk with our team.

What ISO 16770 Covers

It evaluates how long notched polyethylene withstands a constant tensile load in an aggressive medium, a key durability measure for PE pipe and containers.

How the Test Is Run

A fully notched PE specimen is held under constant tensile load in a heated surfactant solution until it fails, and the time to failure is recorded.

Why It Matters

Stress-cracking resistance governs the long-term durability of PE products; constant-load creep frames and controlled environmental conditioning are essential.

Reading the Designation

Cited as ISO 16770 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.

Related Standards

BS 6746 and GB/T 2951 cover polymeric cable insulation and sheathing.

Request a Quote

Setting up PE stress-cracking testing to ISO 16770? Request a quote and our team will help you build a system matched to your material grade and environment.


TensileMill CNC products for ISO 16770

Our specimen-preparation systems and testing equipment compatible with ISO 16770:


Set up ISO 16770 testing with TensileMill CNC

Adding capacity or replacing older equipment? TensileMill CNC can support your ISO 16770 program. For this work we supply universal testing machines, specimen-preparation systems, grips, and fixtures. Share your material mix and throughput, and we will recommend a setup that fits ISO 16770.