ASTM D4434/D4434M-21

Podrobné informace

Označení: ASTM D4434/D4434M-21

Datum vydání: 01.01.2021

Stran: 4

Země: Americká technická norma

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Anotace

This specification covers flexible fiber- or fabric-reinforced sheet made from poly(vinyl chloride) resin as the primary polymer intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain. In-place roof system design criteria such as fire resistance, material compatibility, wind uplift resistance, in-situ shrinkage, among others, are beyond the scope of this specification. The physical requirements for which the sheet materials shall be tested on and shall conform accordingly to are as follows: overall thickness and thickness over scrim; tensile strength at break; breaking strength; elongation at break; seam strength; retention of properties after heat aging; tear resistance and tearing strength; low temperature bend; cracking and crazing after accelerated weathering test; linear dimensional change; change in weight after immersion in water; and static and dynamic puncture resistance.


Keywords:
fillers, flexible sheet, physical properties, plasticizers, poly(vinyl chloride) resin, PVC, reinforcing fabrics, reinforcing fibers, seams, single-ply roofing membrane, stabilizers,, ICS Number Code 91.100.50 (Binders. Sealing materials)