1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade plutonium nitrate solutions to determine compliance with specifications.

1.2 The analytical procedures appear in the following order:

Sections Plutonium by Controlled-Potential Coulometry 2 Plutonium by Amperometric Titration with Iron (II) 2 Free Acid by Titration in an Oxalate Solution 16 to 23 Free Acid by Iodate Precipitation- Potentiometric Titration Test Method 24 to 30 Uranium by Arsenazo I Spectrophotometric Test Method 31 to 41 Thorium by Thorin Spectrophotometric Test Method 42 to 50 Iron by 1,10-Phenanthroline Spectrophotometric Test Method 51 to 58 Chloride by Thiocyanate Spectrophotometric Test Method 59 to 66 Fluoride by Distillation-Spectrophotometric Test Method 67 to 74 Sulfate by Barium Sulfate Turbidimetric Test Method 75 to 82 Isotopic Composition by Mass Spectrometry 83 to 84 Americium-241 by Extraction and Gamma Counting 85 to 93 Americium-241 by Gamma Counting 94 to 102 Gamma-Emitting Fission Products, Uranium, and Thorium by Gamma-Ray Spectroscopy 103 to 110 Rare Earths by Copper Spark Spectrochemical Test Method 111 to 113 Tungsten, Niobium (Columbium), and Tantalum by Spectro-chemical Test Method 114 to 122 Sample Preparation for Spectrographic Analysis for General Impurities 123 to 126

1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific safeguard and safety hazard statements, see Section 5.