如题,小弟最近在做光学方面的测试,需要一系列的标准,上次已经通过各位大侠弄到了E903等标准.现在需要E 424 Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials以及 E 1175 Test Method for Determining Solar or Photopic Reflectance, Transmittance, and Absorptance of Materials Using a Large Diameter Integrating Sphere3,请各位帮助.不胜感激.