h) The degree of white Principle: Beam reflection measurement standard sample with MgO. Equipment: Photometer. Reagent: Standard MgO 99% pa Ways of working: (1) Insert the sample into the sample container similar to that used for container MgO; (2) Measure the reflection index of the sample (A) and the reflection index of MgO (B); (3) Each completed measurement 10 times ...
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