BS ISO 19740:2018规定了测量红外光学材料均匀性的原理、仪器、条件、样品、程序和数据处理。适用于红外光学玻璃、红外晶体、红外陶瓷等红外光学材料均匀性的测定，对可见光波长不透明且其透射光谱超过0.78µm。交叉参考:MIL-G-174BISO 10110-8ISO 10110-7ISO 17411购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS ISO 19740:2018 specifies the principle, apparatus, condition, sample, procedure and data processing of measuring homogeneity of infrared optical materials.It is applicable to the determination of homogeneity of infrared optical materials, such as infrared optical glass, infrared crystals and infrared ceramics, which are opaque to visible wavelengths and whose transmission optical spectra are beyond 0,78 µm.Cross References:MIL-G-174BISO 10110-8ISO 10110-7ISO 17411All current amendments available at time of purchase are included with the purchase of this document.