Testing and calibration laboratories as well as accreditation and cert
ification bodies have to meet the requirements of European directives
and standards. To serve this purpose the PTB introduced a quality syst
em which is described in a quality manual drawn up in a modular way. T
his quality system concerns the laboratories and certification bodies
of PTB as well as the PTB as accreditation body of the Deutscher Kalib
rierdients (German calibration service).