HD 313.2.9 S2-1990 印制电路用基材.第2部分:规范.规范9:有限定可燃性的环氧纤维纸芯环氧玻璃布面敷铜箔层压板(垂直燃烧试验)
Base Materials for Printed Circuits Part 2: Specifications Specification No.9: Epoxide Cellulose Paper Core, Epoxide Glass Cloth Surfaces Copper- Clad Laminated Sheet of Defined Flammability (Vertical Burning Test)