JJF 2075-2023 《 Calibration Specification for International Rubber Hardness Degrees Testers(Scales N,H,L)》 Related products

JJF 2075-2023 "Rubber international hardness gauge (N, H, L scale) calibrating specification" is applicable to calibrate rubber international hardness gauge. The specification refers to a number of standards, including surface roughness measurement and Vickers Hardness test method for metal materials. Rubber international Hardness is determined by measurement of its indentation depth to rubber after applying a small test force and the main test force to a certain diameter steel ball. N, H, L scale is suitable for different testing needs according to the different diameter and test force of steel ball. This specification details the scope of use and calibration method of each ruler, ensuring the accuracy and comparability of test results.