TABLE 7 continued SRM
Name Number 4353A Rocky Flats Soil II†
Mass (g)
85 238 137Cs, 228
Pu, 239,240 Ra, 210
Activity Certified
Pu, 238 Pb, 228
U, 234 U, 235 Th/232 U, 90 Th, 230 Sr, Th/232
Activity Given
But Not Certified 228Th, 230
Th 226 Ra, 214 212Bi, 208 240Pu/239 4354 Lake Sediment† 4355 Peruvian Soil † 25 75 60Co, 90 235U, 238 Sr, 137 U, 238 137Cs, 228 Cs, 228
Pu, 239+240 Th, 230
239+240Pu, 241
Upper limits on: 60 152Eu, 154
4356 Ashed Bone† 4357 Ocean Sediment† 4359 Seaweed Radionuclide 15 85
90Sr, 226 238U, 238
40K, 90 40K, 137 Ra, 230
Pu, 239+240 Sr, 137
230Th, 232 234U, 235 Cs, 210
Th, 238 Pb, 210
U, 238 Th, 232
Th, 232 Am,
Eu, 155 Th, 232
Cs, 226
Pu, 241 Th,
Co, 125 Eu
Th, Am 40K, 55 Sb, Th, 234
Pu, 243+244 Ra, 228
Pu, 239+240 Po, 228
U, 238 239,240Pu, 241
Pu, 239 Am
U,
Cm Th,
Pu
Ra, 232 Pu,
Th, 40K, 210 Pb, 210
228Ra, 228 129I, 155
234U, 235 3H, 14
C, 90 212Bi, 212 228Th, 230 † This standard is not radioactive material for licensing or shipping purposes.
a) Semi-quantitative elemental analysis by emission spectrographic measurements. b) Analysis of plutonium isotopes by mass spectrometry. c) Particle size distribution.
TABLE 8: Neutron Density Monitor Wire SRM Description
953 Cobalt in Aluminum Wire 0.116 Eu, 210 U, 238 Sr, 99 Th, 234 Th, 238
Po, 228 U, 241
Pb, 228 U, 237 Pb, 224 Tc, 129 Th, 237
Ac, Am
Ra,
Np, 241 I, 208
Ra, 226 Am Tl, Ra, Np, 240 Pu a, c Fe, 90 214Bi, 238
Sr, 208 Pu
Tl, c
Th, 232 Pb, 214
Tl, 40 Pu, 241 2l0Pb, 226
Th, 234 Bi, 212
K, 241
Pu/239 Ra, 230
Pu, 241 Pu, 241 Th, 234
Th, Pb,
Am
Pu/240 U
Pu a, c
Other Data
Cobalt Composition (weight %)
Unit Size 0.5 mm diameter 1 m
TABLE 9: Fission Track Glass Each unit consists of four unirradiated glass wafers and two irradiated wafers.
SRM Uranium Composition (µg/g)
963a 0.823
Uranium-235 (Atom %)
0.2792
Reactor Position
RT-4 RT-3
Neutron Fluence (
1014 n/cm2 )
Copper Foil Gold Foil 39.5
41.2
43.0 45.8
TABLE 10: Accelerator Mass Spectrometry (solution form) SRM Radionuclide
Isotopic Ratio Total Nuclide 4325 Beryllium-10/Beryllium-9 3 x 10-11
Concentration (mg g-1 5
Time of Calibration Volume of
) (month/year) 08/86
Solution (mL) 2 x 25
WWW.NIST.GOV/SRM PHONE:(301) 975-2200 FAX: (301) 948-3730 EMAIL:
SRMINFO@NIST.GOV 99
RADIOACTIVITY
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