Interlaminar shear strength (ILSS) test of fiberglass (FRP, GRP and GRE), is undertaken on the YL25 universal testing machine (UTM) with appropriate test fixture and software modules.

Test conditions and software module allow performing tests in conformance with the following test standards:

• DIN BS EN ISO 14130
• ASTM D 2344

Interlaminar test determines the following properties in accordance with above selected test standard:

• Interlaminar shear strength, N/mm2
• Flexural strain, %
• Flexural modulus, N/mm2 (in conjunction with deflectometer)