This standard (Part 2) details the laboratory procedure for conducting the pliability test on bitumen-based waterproofing felts. It specifies the apparatus, sample preparation, conditioning, and bending method to evaluate the material's flexibility and resistance to cracking when bent around a mandrel at a specified temperature.
Bitumen based felts - Methods of test, Part 2: Pliability test
Quick Reference Values
Sample drying temperature105 ± 5 °C
Test specimen area100 cm²
Analytical balance accuracy0.001 g
Key Formulas
Binder Content, % by mass = ((M1 - M2) / M1) * 100
Practical Notes
This is a destructive test primarily used for quality control by manufacturers and for third-party verification.
Ensure adequate ventilation and use appropriate personal protective equipment (PPE) when handling solvents like trichloroethylene.
The accuracy of the result is highly dependent on drying the sample to a constant mass before and after extraction.