Radiochemistry Test Methods
| Drinking Water - EPA SDWA; 40 CFR Part 141 |
| Method |
Isotopes |
Description |
| EPA 900.0 |
screen |
Gross Alpha Radioactivity |
| EPA 900.0 |
screen |
Gross Beta Radioactivity |
| EPA 900.0 |
screen |
Gross Alpha/Beta Radioactivity |
| EPA 903.0 (1) |
Radium |
Total Alpha-Emitting Radium Isotopes |
| EPA 903.1 |
Ra-226 |
Radium-226; Radon Emanation |
| EPA 904.0 |
Ra-228 |
Radium-228 |
| EPA 905.0 |
Sr-90 |
Radioactive Strontium |
| EPA 906.0 |
H-3 |
Tritium |
| EPA 908.0 (2) |
Uranium |
Uranium - Radiochemical Method |
| ASTM D5174 |
Uranium |
Uranium - KPA |
| SM 7500-Rn |
Rn-222 |
Radon - Liquid Scintillation Method |
| (1) This method is a screen for the total concentration of soluble alpha-emitting isotopes of Radium, namely Ra-223, Ra-224 and Ra-226. It does not distinguish the individual isotopes. |
| (2) This method is a screen for the total concentration of alpha-emitting isotopes of Uranium, namely U-234 and U-238. It does not distinguish the individual isotopes. |
| Wastewater - EPA CWA; 40 CFR Part 136 |
| Method |
Isotopes |
Description |
| EPA 900.0 |
screen |
Gross Alpha/Beta Radioactivity |
| EPA 903.0 (1) |
Radium |
Total Alpha-Emitting Radium Isotopes |
| EPA 903.1 |
Ra-226 |
Radium-226; Radon Emanation |
| (1) This method is a screen for the total concentration of soluble alpha-emitting isotopes of Radium, namely Ra-223, Ra-224 and Ra-226. It does not distinguish the individual isotopes. |
| Gas Flow Proportional Measurements |
| Method |
Isotopes |
Description |
| PGH-R-001-A |
screen
|
Gross Alpha Radioactivity |
| PGH-R-001-A |
screen |
Gross Alpha Radioactivity (co-precipitation) |
| PGH-R-001-A |
screen
|
Gross Beta Radioactivity |
| PGH-R-001-A |
screen |
Gross Alpha and Beta Radioactivity
|
| RA-320 |
Sr-89 |
Strontium-89 |
| RA-320 |
Sr-90 |
Strontium-90 |
| RA-320 |
Sr-90 |
Strontium-90 |
| RA-320 |
Sr-89/90 |
Strontium-89 and Strontium-90 |
| RA-320 |
Sr |
Total Radioactive Strontium |
| A-529 |
Ra-228 |
Radium-228 |
| Liquid Scintillation Measurements |
| Method |
Isotopes |
Description |
| RA-410 |
H-3 |
Tritium |
| RA-420 |
C-14 |
Carbon-14 |
| RA-440 |
Fe-55 |
Iron-55 |
| RA-430 |
Ni-63 |
Nickel-63 |
| RA-450 |
Tc-99 |
Technetium-99 |
| RA-460 |
Pu-241 |
Plutonium-241 |
| Alpha Spectroscopy |
| Method |
Isotopes |
Description |
| PGH-R-008A (1) |
Pu-238, 239/240 |
Plutonium-238, 239/240 |
| PGH-R-008A |
Pu-242 |
Plutonium-242 |
| PGH-R-008A |
Am-241 |
Americium-241 |
| PGH-R-008A |
Th-228, 230, 232 |
Thorium-228, 230, 232 |
| PGH-R-008A |
U-234, 235, 238 |
Uranium-234, 235, 238 |
| PGH-R-008A (2) |
Cm-242, 243/244 |
Curium-242, 243/244 |
| (1) There is no manner of distinguishing between the Pu-239 and Pu-240 isotopes. The result is the sum of the two isotopes. |
| (2) There is no manner of distinguishing between the Cm-243 and Cm-244 isotopes. The result is the sum of the two isotopes. |
| Gamma Spectroscopy |
| Method |
Isotopes |
Description |
| PGH-R-023A |
Various |
Gamma (photon) emitters |
| PGH-R-023A (1) |
Ra-226, Ra-228 |
Radium-226 & Ra-228 via In-Growth and Measurement of Progeny |
| A-526 |
I-129 |
Iodine-129; Low-energy photon spectroscopy |
| (1) Solid samples are placed into a can and sealed to prevent the escape of gasses. Daughter products of Ra-226 (Rn-222, Pb-214, Bi-214) are trapped. In-growth occurs until equilibrium is achieved (21 days). Pb-214 and Bi-214, assumed to be in equilibrium with the Ra-226 parent are measured and reported. Ac-228, assumed to be in equilibrium with the Ra-228 is measured and reported. |
| Sample Preparation |
| Method |
Isotopes |
Description |
| 0010 |
N/A |
Acid Digestion |
| A-538 |
N/A |
Drying/Grinding/Sieving |
| N/A |
N/A |
Filtration (0.45 mm) |
| A-556 |
N/A |
Pyrosulfate Dissolution |
| N/A |
N/A |
Rock Pulverization |
| EPA ILMO5.2 |
N/A |
Percent Solids |