标准摘要
[中文适用范围]： IEC 61249 的这一部分规定了经济级非卤化酚醛纤维素纸覆铜层压板的性能要求，厚度为 0.8 毫米至 3.2 毫米。该标准涵盖了对火焰有不同要求的材料 [外文原描述]： This part of IEC 61249 gives requirements for properties of non-halogenated phenolic cellulose paper copper-clad laminated sheets, economic grade, in thicknesses of 0,8 mm up to 3,2 mm. This standard covers materials with different requirements on flammability and are designated according to the following: Material 61249-2-23-1: general purpose grade, requirement on flammability not specified; Material 61249-2-23-2: materials of defined flammability (vertical burning test). These grades of material provide for one of two flammability requirements and designated as FV0 or FV1 in Table 8.
英文名称Materials for printed boards and other interconnecting structures - Part 2-23: Reinforced base materials, clad and unclad - Non-halogenated phenolic cellulose paper reinforced laminated sheets, economic grade, copper clad