Definition(s)
E-glass
Glass fibre normally used to reinforce GRP (3.2.44) pipes, consisting mainly of SiO2, Al2O3 and MgO.
Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards