Levels. Methods of verification

Norma vydána dne 1.11.1990

Light range finders. Methods and means of verification

Norma vydána dne 1.9.2003

The use of electronic distance measurer SP-2 (Topaz) for certification of the basis of the 2-3 class

Norma vydána dne 1.4.1995

The method of measurements of distances by metal tapes

Norma vydána dne 1.2.2001

Method for measuring the difference (divergence) of time scales based on NTP and PTP protocols

Norma vydána dne 9.10.2017