203-1 Blaine apparatus workig principle

This test method covers determination of the fineness of hydraulic cement, using the Blaine air-permeability apparatus, in terms of the specific surface expressed as total surface area in square centimetres per gram, or square metres per kilogram, of cement. HMK-C1 usesTest Method A is the Reference Test Method using the manually operated standard Blaine apparatus, it should be understood that, in general, relative rather than absolute fineness values are obtained. The measurement is done by letting an air pass through a bed of samples. Record all related parameters during the passage and input them to a formula to obtain the specific surface area of the tested sample