ASTM D6878/D6878M-26

Kategórie - podobné normy:

Termoplasty

Anotácia textu normy ASTM D6878/D6878M-26 :

This specification covers flexible sheet made from thermoplastic polyolefin (TPO) as the principal polymer, intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain reinforcing fabrics or scrims. The sheet shall be formulated from ethylene and higher alpha-olefin polymers, copolymers, and mixtures thereof, in amounts greater than 50 %, by weight of the total polymer content suitably compounded to satisfy the physical requirements specified. The sheet shall be capable of being heat welded, fused, or adhesively bonded to itself for making watertight field splices and repairs and shall be reinforced with fabric or scrim. Different tests shall be performed in order to determine the following physical properties of thermoplastic polyolefin sheets: dimensions, sheet overall thickness, coating thickness over scrim, breaking strength, elongation at break, tearing strength, brittleness point, ozone resistance, heat aging, linear dimensional change, water absorption, factory seam strength, and weather resistance.

Keywords:

flexible sheet, roofing, roofing material, single-ply roofing membrane, thermoplastic polyolefin, TPO,, ICS Number Code 83.080.20 (Thermoplastic materials)