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ASTM D7362

Standard Guide for Rapid Screening of Vegetation for Radioactive Strontium Aerial Deposition

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Organization: ASTM
Publication Date: 15 June 2007
Status: inactive
Page Count: 4
ICS Code (Radiation measurements): 17.240
scope:

This guide provides a rapid procedure by which vegetation samples may be screened for surface contamination of radioactive strontium (89Sr and 90Sr, collectively referred to as radiostrontium) following an airborne radioactive dispersal event. It provides a conservative estimate of radiostrontium deposition that can be used by decision makers for immediate actions prior to obtaining definitive results from a fixed laboratory asset.

Insoluble forms of radiostrontium, such as the strontium (90Sr) titanate (SrTiO3) used in radio-isotope thermal-electric generators (RTGs), will not be measured by this method.

Non-SI units are used in the calculations of this guide for ease of use during the emergency phase of an event. The instrumentation used typically provides count rates in counts per minute (cpm) rather than per second (s-1, the SI unit), thus activity is expressed in dpm (decays per minute) rather than Bq. Additionally, US EPA protective guidelines for surface contamination are expressed in dpm/100 cm2.

This standard does not purport to address all of the safety concerns, 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.

Document History

November 1, 2014
Standard Guide for Rapid Screening of Vegetation for Radioactive Strontium Aerial Deposition
This guide provides a rapid procedure by which vegetation samples may be screened for surface contamination of radioactive strontium (89Sr and 90Sr, collectively referred to as radiostrontium)...
ASTM D7362
June 15, 2007
Standard Guide for Rapid Screening of Vegetation for Radioactive Strontium Aerial Deposition
This guide provides a rapid procedure by which vegetation samples may be screened for surface contamination of radioactive strontium (89Sr and 90Sr, collectively referred to as radiostrontium)...

References

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