1.1 This test method covers the measurement of soluble,suspended, and total 226 Ra in water in concentrations above 3.7 × 10 −3 Bq/L. This test method is not applicable to the measurement of other radium isotopes.
1.2 This test method may be used for quantitative measure-ments by calibrating with a 226 Ra standard, or for relative measurements by comparing the measurements made with each other.
