Information technology. Telecommunications and information exchange between systems. Provision of the OSI connection-mode network service by packet mode terminal equipment connected to an integrated services digital network (ISDN)
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for instruments measuring surface roughness parameters Rmax, Rz in range from 0,001 to 3000 µm and Ra in range from 0,001 to 750 µm
