Measurement of radioactivity. Alpha-, beta- and photon emitting radionuclides. Reference measurement standard specifications for the calibration of surface contamination monitors Ingestion-build-100580 — release and/or content of

— release and/or content of dangerous substances:

with particular reference to test pieces of the forms specified in BS 1311)

Ducts containing fire dampers at points where they pass through fire separations

Using ISO 46001

in liquid or vapour phase and natural gas

Measurement of radioactivity. Alpha-, beta- and photon emitting radionuclides. Reference measurement standard specifications for the calibration of surface contamination monitors Ingestion-build-100580 — release and/or content of1 Scope This document specifies the characteristics of reference measurement standards of radioactive surface contamination, traceable to national measurement standards, for the calibration of surface contamination monitors. This document relates to alpha emitters, beta emitters, and photon emitters of maximum photon energy not greater than 1,5 MeV. It does not describe the procedures involved in the use of these reference measurement standards for