标准摘要
[中文适用范围]： 本部分 ISO 5 规定了 ISO 5 标准反射密度的定义几何条件。它还建议在设计仪器时可使用这些几何条件的公差。光谱条件在 ISO 5-3 中规定。本部分 ISO 5 还规定了偏振（如果包含该功能）和背衬材料的要求，并对准确性和线性度提出了建议。虽然主要用于测量摄影和印刷材料（graphic arts materials）的反射特性，但本部分 ISO 5 也适用于测量其他材料的这些特性。 [外文原描述]： ISO 5-4:2009 specifies the geometric conditions for the definition of ISO 5 standard reflection density. It also recommends tolerances on geometric conditions that can be used in the design of instruments. The spectral conditions are specified in ISO 5-3. ISO 5-4:2009 also specifies the requirements for polarization (if that feature is included) and for backing material, and makes recommendations regarding accuracy and linearity. Although intended primarily for use in the measurement of the reflection characteristics of photographic and graphic arts materials, ISO 5-4:2009 is also applicable to the measurement of these characteristics for other materials.
英文名称Photography and graphic technology — Density measurements — Part 4: Geometric conditions for reflection density