205.11 - Radioactive Natural Matrix Materials (powder form)

For further information on the Descriptions of Radioactive Environmental Natural Matrix Standards click link: Descriptions of Environmental Natural Matrix Standards

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

"Radionuclide Calibration Services"

"Radioactive SRM Purchasing Instructions & License Certification Form"

"Radioactive SRMs-General Info"

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.


- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only


Detail - Detail    Certificate - Certificate    Report of Investigation - Report of Investigation    MSDS - MSDS    Data Files - Data Files    Questionaire - Questionnaire


  4350B 4351 4352 4353A 4354 4355 4356 4357 4358 4359
Status   >> Now Selling Now Selling Now Selling Now Selling Now Selling Out of Stock Now Selling Now Selling Now Selling Now Selling
Description   >> River Sediment (Radioactivity) Human Lung Powder Human Liver Powder Rocky Flats Soil Number 2 Lake Sediment Powder Peruvian Soil Powder Ashed Bone (Radioactivity) Ocean Sediment Powder Ocean Shellfish Radionuclide Standard Seaweed Radionuclide Standard
  Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS
Unit Size   >> 85 g 45 g 45 g 90 g 25 g 75 g 15 g 85 g 150 g 300 g

Massic Activity (mBq/g)


  NRC License or Equivalent Required* -- -- -- X -- -- -- X
-- --
   Ref. Date 9-Sep-81 1200 EST 1-Oct-82 1-Jun-82 1-Apr-98 14-Feb-86 1-June-82 1200 EST 31-Dec-95 16-Feb-94 16 Feb 98 1-Jan-02
Americium-241 (241Am) 0.15   0.15   1.1 0.004 0.0432   0.101  
Antimony-125 (125Sb)         <0.14          
Cesium-137 (137Cs) 29.0     21.6 59.2 0.33   12.7 0.254 0.933
Cobalt-60 (60Co) 4.64       320 <0.016        
Curium-243,244 (243Cm + 244Cm)             0.12      
Europium-152 (152Eu) 30.5         <0.23        
Europium-154 (154Eu) 3.78         <0.2        
Europium-155 (155Eu)           <0.2        
Lead-210 (210Pb)       58.0         6.9 21.0
Plutonium-238 (238Pu) 0.013   0.055 0.278 0.26   0.86 2.29 0.009 0.00606
Plutonium-239 (239Pu)                   0.0840
Plutonium-239,240 (239Pu + 240Pu) 0.508 1.1 2.06 16.8 4.00 0.0075 1.26 10.4 0.055 0.1296
Polonium-210 (210Po)                   20.6
Potassium-40 (40K)               225 160 734
Radium-226 (226Ra) 35.8     74.9     14.5 12.7    
Radium-228 (228Ra)               13.3 1.33 4.32
Strontium-90 (90Sr)       10.5 1090   42.6 4.4    
Thorium-228 (228Th)         28.6 42.2   12.1 1.34  
Thorium-230 (230Th)           39.7 0.52 12.0 0.413  
Thorium-232 (232Th)   0.21     26.8 43.0 0.98 13.0 0.642 2.40
Uranium-234 (234U)   0.100   40.4     0.64   1.56 9.5
Uranium-235 (235U)       1.88 0.75       0.061 0.400
Uranium-238 (238U)   0.101   39.6 17.4   0.63   1.46 8.67

- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only

*If no "X", then license is not required unless the institution possesses a specific license that covers the listed radionuclide.