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BS EN ISO 12807:2021 Safe transport of radioactive materials. Leakage testing on packages >
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BS EN ISO 12807:2021 Safe transport of radioactive materials. Leakage testing on packages, 2021
- undefined
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbols and units
- 5 Regulatory requirements
- 5.1 Relevant regulations
- 5.2 Regulatory containment requirements
- 6 Procedure for meeting the requirements of this document
- 6.1 General
- 6.2 Quality management system
- 6.3 Procedure
- 6.3.1 General
- 6.3.2 Determination of permissible activity release rates
- 6.3.3 Determination of standardized leakage rates
- 6.3.4 Determination of permissible test leakage rates for each verification stage
- 6.3.5 Selection of appropriate test methods
- 6.3.6 Performance of test and record of results
- 7 Determination of permissible activity release rates
- 7.1 Step 1: List the radioactive contents, Ai
- 7.2 Step 2: Determine the total releasable activity, RIT
- 7.3 Step 3: Determine the maximum permissible activity release rates, R
- 8 Determination of standardized leakage rates
- 8.1 General
- 8.2 Step 4: Determine the activity release rate due to permeation, RP
- 8.3 Step 5: Determine the maximum permissible activity release rate due to leakage, RG
- 8.4 Step 6: Determine the activity per unit volume of the containment system medium, C
- 8.5 Step 7: Determine the maximum permissible volumetric leakage rate of the medium, L
- 8.6 Step 8: Determine the maximum permissible equivalent capillary leak diameter, D
- 8.7 Step 9: Determine the permissible standardized leakage rate, QSLR
- 9 Containment-system verification requirements
- 9.1 Containment-system verification stages
- 9.1.1 General
- 9.1.2 Design verification
- 9.1.3 Fabrication verification
- 9.1.4 Preshipment verification
- 9.1.5 Periodic verification
- 9.1.6 Maintenance verification
- 9.2 Verification requirements
- 9.2.1 General
- 9.2.2 Step 10: Determine permissible test leakage rate for each verification stage, QTDA, QTDN, QTF, QTS, QTP and QTM
- 9.2.3 Step 11: Select appropriate test methods
- 10 Leakage test procedure requirements
- 10.1 General
- 10.2 Step 12: Perform tests and record results
- 10.3 Test sensitivity
- 10.4 Test procedure requirements
- 10.4.1 General
- 10.4.2 Testing
- Annex A (informative) Preferred leakage test methods
- Annex B (informative) Methods of calculation
- Annex C (informative) Conversion tables
- Annex D (informative) Worked examples
- Annex E (informative) Rationale
- Bibliography [Go to Page]