BIPM - ionizing radiation

Ongoing radionuclide activity comparisons:

BIPM.RI(II)-K1 – Activity of radionuclides: see the International Reference System (SIR)
BIPM.RI(II)-K4 – Activity of short half-life radionuclides: see the SIR transfer instrument
Ongoing comparisons of air kerma:

BIPM.RI(I)-K1 – Measurement of air kerma for Co-60 gamma-rays
BIPM.RI(I)-K2 – Measurement of air kerma for low energy x-rays
BIPM.RI(I)-K3 – Measurement of air kerma for medium energy x-rays
BIPM.RI(I)-K5 – Measurement of air kerma for Cs-137 gamma-rays
BIPM.RI(I)-K7 – Measurement of air kerma for mammography beams
BIPM.RI(I)-K8 – Measurement of reference air kerma rate for high dose-rate brachytherapy
Ongoing comparisons of absorbed dose:

BIPM.RI(I)-K4 – Measurement of absorbed dose to water for Co-60
BIPM.RI(I)-K6 – Measurement of absorbed dose to water for high-energy beams