Precision Pencil Hardness Tester Paint Film Hardness Tester Load 1000g /750g
$ 49.19
Description
eBay Principles of measurement of pencil hardness meter measurement The instrument is mechanical, and three -point contact surface (two points are wheels, one point is the lead core) always ensure that the pencil and the test surface are 45 ° angle. Push the instrument to slide by hand. Come. Instead of using different pencils to draw different traces, the hardness value of the coating film can be determined accordingly. Reference Standard "GB/T 6739-96" coating film hardness pencil measurement method "ASTM D3363-00" pencil test method to determine the hardness test method of coating film hardness "GB/T 1727-92" general preparation method of paint film
