ISO 1524-2020 《Paints, Varnishes And Printing Inks - Determination Of Fineness Of Grind》 Related products

The standard provides a general method for determining the fineness of grinding paints, inks and related products. It is suitable for all types of liquid coatings, but explicitly excludes products containing scaly pigments. The core of the standard is to use calibrated micron gauges (such as the Hegman fineness grindometer) for testing. Drawdown blades are used to scrape samples in wedge grooves, and the scale value of particle aggregation is visually or instrumentally read to evaluate the size and distribution of solid particles. This indicator directly affects the smoothness, Gloss and durability of coatings. Drawdown blade geometries and operating procedures are optimized to improve measurement accuracy and laboratory conformity. Testing instruments mainly include stainless steel fineness grindometers, single or double blade Drawdown blades, and auxiliary lighting and amplification devices.