ISO 4499-3:2016给出了仅使用光学或电子显微镜通过金相技术测量含额外立方碳化物的Ti（C，N）基硬质合金和WC/Co硬质合金微观结构特征的指南。它适用于主要含有无机碳化物和氮化物作为硬质相的烧结硬质合金（也称为硬质合金或金属陶瓷）。它还用于通过线性截距技术测量相位大小和分布。

ISO 4499-3:2016 gives guidelines for the measurement of microstructural features in Ti(C,N) based hardmetals and WC/Co hardmetals that contain additional cubic carbides by metallographic techniques only using optical or electron microscopy. It is intended for sintered hardmetals (also called cemented carbides or cermets) containing primarily inorganic carbides and nitrides as the hard phase. It is also intended for measuring the phase size and distribution by the linear intercept technique.