... the requirements of IEC standards 0.3m-3.0m Integrating Sphere Specifications:• Diameter: IS-0.3M (φ0.3m),IS-0.5M (φ0.5m ... do the photometry, colorimetry and radiometry parameters measurement:• IS-0.3M/IS-0.5M is suitable for LEDs, LED modules, High ... -video-lpce-1-spectrophotometer-and-integrating-sphere-test-system/ 0.3m-3m Integrating Sphere