ASTM D7362 - 14 - Standard Guide for Rapid Screening of Vegetation for Radioactive Strontium Aerial Deposition

ASTM D7362 - 14

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

Status : Current   Published : January 2014

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PDF

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HARDCOPY



1.1 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.

1.2 Insoluble forms of radiostrontium, such as the strontium ( 90Sr) titanate (SrTiO 3) used in radio-isotope thermal-electric generators (RTGs), will not be measured by this method.

1.3 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 cm 2.

1.4  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.




Standard NumberASTM D7362 - 14
TitleStandard Guide for Rapid Screening of Vegetation for Radioactive Strontium Aerial Deposition
StatusCurrent
Publication Date11 January 2014
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Emergency response, Liquid Scintillation Counting, Solid Phase Extraction, Strontium-89, Strontium-90, Vegetation
ICS17.240
PublisherASTM
FormatA4
DeliveryYes
Pages4
File Size78 KB
Price£36.00


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