标准摘要
[中文适用范围]： 和领域 1.1 国际标准ISO2039的本部分规定了使用洛氏硬度计在洛氏硬度M、L和R标尺上测定塑料压痕硬度的方法。 1.2 洛氏硬度值直接与塑料的压痕度有关,洛氏硬度越高,材料越硬。由于按此程序洛氏硬度各标尺之间只重叠很短的部分,因此,在同一材料上可以测得不同标尺的两种不同的硬度值... [外文原描述]： Provides product specifications for coated optical fibres with or without buffer and deals with two classes of optical fibres, class A (multimode) and class B (single mode). There are at present four categories of class A fibres and three of class B. Applies to optical fibres type A1a, A1b, A1c and A1d.
英文名称Optical fibres - Part 2: Product specifications