ASTM E1893 - 2008a Standard Guide for Selection and Use of Portable Radiological Survey Instruments for Performing In Situ Radiological Assessments to Support Unrestricted Release from Further Regulatory Controls

American Society for Testing and Materials - 2008.- 28 p.
This standard provides recommendations on the selection and use of portable instrumentation that is responsive to levels of radiation that are close to natural background. These instruments are employed to detect the presence of residual radioactivity that is at, or below, the criteria for release from further regulatory control of a component to be salvaged or reused, or a surface remaining at the conclusion of decontamination and/or decommissioning.
The choice of these instruments, their operating characteristics and the protocols by which they are calibrated and used will provide adequate assurance that the measurements of the residual radioactivity meet the requirements established for release from further regulatory control.
This standard is applicable to the in situ measurement of radioactive emissions that include:
• alpha
• beta (electrons)
• gamma
• characteristic x-rays
The measurement of neutron emissions is not included as part of this standard.
This standard does not address instrumentation used to assess residual radioactivity levels contained in air samples, surface contamination smears, bulk material removals, or half/whole body personnel monitors.
This standard does not address records retention requirements for calibration, maintenance, etc. as these topics are considered in several of the referenced documents.
Referenced Documents
ASTM Standards:
C998 Practice for Sampling Surface Soil for Radionuclides C999 Practice for Soil Sample Preparation for the Determination of Radionuclides
C1000 Test Method for Radiochemical Determination of Uranium Isotopes in Soil by Alpha Spectrometry
C1133 Test Method for Nondestructive Assay of Special Nuclear Material in Low-Density Scrap and Waste by Segmented Passive Gamma-Ray Scanning
E170 Terminology Relating to Radiation Measurements and Dosimetry
E181 Test Methods for Detector Calibration and Analysis of Radionuclides
C1215 Guide for Preparing and Interpreting Precision and Bias Statements in Test Method Standards Used in the Nuclear Industry
U.S. ANSI Standards:
ANSI N323B Radiation Protection Instrumentation Test and Calibration, Portable Survey Instrumentation for Near Background Operation
ANSI N42.17A Performance Specifications for Health Physics Instrumentation-Portable Instrumentation for Use in Normal Environmental Conditions
ANSI N42.17C Performance Specifications for Health Physics Instrumentation-Portable Instrumentation for Use in Extreme Environmental Conditions
U.S. National Council on Radiation Protection and Measurements:
NCRP Report No. 57 Instrumentation and Monitoring Methods for Radiation Protection, National Council on Radiation Protection and Measurements, May 19784
NCRP Report No. 58 A Handbook of Radioactivity Mea- surement Procedures, National Council on Radiation Pro- tection and Measurements, 2nd Ed. February 19854
NCRP Report No. 112 Calibration of Survey Instruments Used in Radiation Protection for the Assessment of Ionizing Radiation Fields and Radioactive Surface Contamination, National Council on Radiation Protection and Measurements, December 19914
International Organization for Standardization (ISO):
ISO-4037-4 : 2004 X and Gamma Reference Radiations for
Calibrating Dosimeters and Dose-rate Meters and for Determining their Response as a Function of Photon Energy, International Organization for Standardization, 19795
ISO-6980-2: 2005 Nuclear energy – Reference beta particle radiation - Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field5
ISO-8769: 19885Reference Sources for the Calibration of Surface Contamination Monitors – Beta Emitters (Maximum Beta Energy Greater than 0.15 MeV) and Alpha Emitters
ISO 8769-2: 1996 Reference sources for the calibration of surface contamination monitors-Part 2: Electrons of energy less than 0.15 MeV and photons of energy less than 1.5 MeV
ISO-7503-1: 19885 Evaluation of Surface Contamination - Part 1: Beta Emitters (Maximum Beta Energy Greater than 0.15 MeV) and Alpha Emitters
ISO-7503-2: 19885 Evaluation of Surface Contamination - Part 2: Tritium Surface Contamination
ISO-7503-3: 2003 Evaluation of Surface Contamination - Part 3: Isomeric Transition and Electron Capture Emitters, Low Energy Beta Emitters (Ebmax<0.15 MeV)
U.S. Department of Energy (DOE):
DOE G441.1-1B Radiation Protection Programs Guide for Use with Title 10, Code of Federal Regulations, Part 835, Occupational Radiation Protection, Chapter 9, Portable Monitoring Instrument Calibration, 3/1/2007