C1475 Standard Guide for Determination of Neptunium-237 in Soil
C1614 Standard Practice for the Determination of 237Np, 232Th, 235U and 238U in Urine by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Gamma Ray Spectrometry.
D4962 Standard Practice for NaI(Tl) Gamma-Ray Spectrometry of Water
D7316 Standard Guide for Interpretation of Existing Field Instrumentation to Influence Emergency Response Decisions
D3648 Practices for the Measurement of Radioactivity
D4962 Practice for NaI(Tl) Gamma-Ray Spectrometry of Water
E181 Test Methods for Detector Calibration and Analysis of Radionuclides