2.1 This standard covers the technique for the quantification of the activity of identified radionuclides using any of a variety of ionization chambers currently available for this purpose. Application of the standard is limited to instruments that incorporate well-type ionization chambers as detectors. 2.2 This standard provides a method for obtaining measurements that are accurate to within ± 10% and reproducible to within ± 5% [usually for sources of more than 100 mCi (3.7* 10^6 Bq)]. The standard is also intended to assure continuing performance of the apparatus within these specifications. For purposes of this standard, accuracy and reproducibility are described in 4.6.
Rationale
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.