... Application of Brightness Tester: Brightness Tester is used to test the whiteness. It also can test the paper’s transparency, opacity, light ... , 11. Measuring repeatability: ≤0.3. Configuration of Brightness Tester: Mainframe, standard white board, power line Recommend reasons of ... keeping handlers safe, 3. Reasonable price. Keywords of Brightness Tester: ISO 2469, ISO 2470, ISO 2471, ISO 2472, ...