ASTM D4990-97a (R2020) PDF Download
Standard EN
Standard Specification for Coal-Tar Glass Felt Used in Roofing and Waterproofing
Also Known As:
SKU147169438
Published by
ASTM International, formerly American Society for Testing and Materials
ASTM
Publication Date1997
Pages CountPages2
The ASTM D4990-97a (R2020) standard outlines the requirements for glass felt impregnated with coal tar. This material is intended to be used in the construction of built-up roofs and waterproofing systems.
The glass felt is described as a thin, porous sheet consisting of uniformly distributed glass fibers. It may or may not include reinforcing stranded glass yarns, and it is bonded with a water-resistant resinous binder.
The standard specifies various properties that the glass felts must meet, including longitudinal and transverse breaking strength, pliability, width, area, net dry mass, parting agent and stabilizer content, moisture content, desaturated mass, bituminous saturant (coal tar) content, and ash content.
Details
| Descriptors | built-up roofs, roofing membranes, waterproofing membranes, coal tar pitch,Coal Tar,Glass Fibers,Roofing and Waterproofing,Roofing and Waterproofing Membranes |
| ICS Codes | 91.100.50 - Binders. Sealing materials |
| Language(s) | English |
| File Size | 61.4 KB |
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