This sheet of 60819-3 specifies requirements for two types of filled glass paper designated: P-FG type 1: high inorganic content paper with maximum organic content 15%; P-FG type 2: medium inorganic content paper with maximum organic content 25%
DS/EN 60819-3-1:2002 history
2002DS/EN 60819-3-1:2002 Non-cellulosic papers for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Filled glasspaper