This standard specifies the requirements, sampling protocols, and test methods for both non-crosslinked and crosslinked polyethylene foam used for thermal insulation. It covers material properties such as density, thermal conductivity, water absorption, and fire performance for foam supplied in sheet, roll, or tubular form.
Specifies requirements for polyethylene foam used for thermal insulation.
Quick Reference Values
Minimum Density (Type 1 - Non-Crosslinked)25 kg/m³
Maximum Thermal Conductivity at 24°C0.040 W/m.K
Maximum Water Absorption by Volume (after 28 days)1.5 %
Maximum Water Vapour Permeability4.5 ng/Pa.s.m
Working Temperature Range-40 °C to +90 °C
Minimum Limiting Oxygen Index23 %
Practical Notes
Ensure the correct material type (non-crosslinked vs. crosslinked) is chosen based on the application's mechanical and temperature requirements.
Verify the fire performance class ('Class O' or 'Class 1') meets the project's fire safety regulations, as this is a critical safety parameter.
For cold insulation applications, confirm if a factory-applied facing (like aluminium foil) is specified to act as a vapour barrier.