
The measurement and calibration capabilities of the Division 4 are available as pdf-file. They are integrated in the quality management system of the PTB, which meets the requirements for calibration and testing laboratories as defined in the
DIN EN ISO/IEC 17025.PDF Measurement and calibration capabilities of the Division 4
Selected Measuring Systems
Luminous fluxLuminous flux
The national standard for spectral irradianceThe national standard for spectral irradiance
Optical shape measurementOptical shape measurement
Highly accurate deflectometric flatness calibrationHighly accurate deflectometric flatness calibration
Time distributionTime distribution

Dissemination of the second via the long-wave transmitter DCF77 and the address ftp.ptb.de/pub/time
DP 4.4, Time and Frequency