ML24253A156
| ML24253A156 | |
| Person / Time | |
|---|---|
| Site: | 07109316 |
| Issue date: | 09/09/2024 |
| From: | Alpha-Omega Services |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML24253A154 | List: |
| References | |
| FM9006.1-092024-002 FM9054, Rev J-4 | |
| Download: ML24253A156 (1) | |
Text
List of Changes - AOS FM9054, Rev. J-4 (effective date 09-09-2024) 1 LIST OF CHANGES - AOS FM9054, Revision J Tracking page number, heading level, paragraph number, line number, what it was, what it is, and justification (if needed)
Page Heading / Item /
Step Para # / Item /
Step Line # / Item /
Step What is was (Revision J-3)
What it is (Revision J-4)
Justification (if needed)
FrontMatter
- i.
Rev. J-3, July 19, 2023 Rev. J-4, September 9, 2024 (Note: Automatically applied to all footers. Due to software constraints, SAR page footers might/might not include a revision bar indicating this change.
Additionally, the revision bar might span both lines of the footer.)
iv Revision History J-4 Clarified Special Form Sources - replaced encapsulated by with certified as, 4x Redefined seal replacement schedule Aligned terminology used in certification drawing item descriptions Applied miscellaneous corrections (table of changes included with cover page of the submittal)
Chapter 1 1-10 1.2.1.1 8
1 When the radioactive contents are encapsulated in Special Form sources, containment is provided by the sealed source. For Normal Form material, containment for the AOS Transport Packaging System (containment boundary) is provided within the cask component.
When the radioactive contents are certified as Special Form sources, containment is provided by the sealed source. For Normal Form material, containment for the AOS Transport Packaging System (containment boundary) is provided within the cask component.
1-23 Table 1-5 Cask Component row Models AOS-100A/100B/100A-S, respectively 105E9712 N (2x) 105E9719 N
105E9712 P, footnote b (2x) 105E9719 P, footnote b New footnote b. Revision O is not used.
Chapter 2 - No changes proposed 2-5 Figure 2-3 Callout for Pin Support and Latch Pin
<removed>
2-28 Table 2-8 Footnote c 1
- c. Port plug seals includes the conical seals.
- c. Port plug seals include the conical seals.
2-45 2.5.1.1 Heading 1
Cask Lifting Analysis - Trunnion Bolting Evaluation Cask Lifting Analysis - Trunnion Screw Evaluation 2 2-48 2.5.1.1 content Table 2-20 All All (multiple locations) bolt/s bolting bolted Ebolt screw/s <Note: Bolt Circle remains as is, unchanged>
fastened fastened Escrew Chapter 3 - No changes proposed Chapter 4 4-1 4.1 2
1 When the radioactive contents are encapsulated in Special Form sources, containment is provided by the sealed source. For Normal Form material, containment is provided by the casks Containment Boundary, as described in the following section.
When the radioactive contents are certified as Special Form sources, containment is provided by the sealed source. For Normal Form material, containment is provided by the casks Containment Boundary, as described in the following section.
List of Changes - AOS FM9054, Rev. J-4 (effective date 09-09-2024) 2 Page Heading / Item /
Step Para # / Item /
Step Line # / Item /
Step What is was (Revision J-3)
What it is (Revision J-4)
Justification (if needed) 4-5 4.1.2 1
Bullet 1 Bullet 2 The seal replacement schedule is as follows:
Metallic Seal - Single use only.
Elastomeric Seal - Once every twelve uses or every twelve (12) months, whichever comes first, or if damaged.
The seal replacement schedule is as follows:
Metallic Seal o
Normal Form material - Single use only.
o Special Form material - Once every twelve (12) uses -or-every twelve (12) months, whichever comes first, or if damaged.
Elastomeric Seal - Once every twelve (12) uses -or-every twelve (12) months, whichever comes first, or if damaged.
4-5 Figure 4-3 Upper left and lower right text blocks Upper left: 3 Lower right: 2 ANSI B1.20.3 (2x)
ASME B1.20-3-1976 (2x) 4-5 Figure 4-3 Lower right text block 4
(25.98 N-m) (LUB)
(312 N-m) (LUB) 4-29 4.2.1 1
1 When the radioactive contents are encapsulated in Special Form sources, containment under Normal Conditions of Transport is provided by the sealed source. For Normal Form material, containment is provided by the casks containment system.
When the radioactive contents are certified as Special Form sources, containment under Normal Conditions of Transport is provided by the sealed source. For Normal Form material, containment is provided by the casks containment system.
4-31 4.3 1
1 When the radioactive contents are encapsulated in Special Form sources, containment under Hypothetical Accident Conditions of Transport is provided by the sealed source. For Normal Form material, containment is provided by the casks containment system.
When the radioactive contents are certified as Special Form sources, containment under Hypothetical Accident Conditions of Transport is provided by the sealed source. For Normal Form material, containment is provided by the casks containment system.
4-32 4.4 1
3 Pre-shipment and periodic Leakage tests, meeting the requirements of Reference [4.4], are used to demonstrate that the AOS transport packages meet the containment requirements of 10 CFR 71.51 [4.1]
are delineated in Subsection 8.2.2, Leakage Tests
[8.4].
Pre-shipment and periodic Leakage tests, meeting the requirements of Reference [4.4], are used to demonstrate that the AOS transport packages meet the containment requirements of 10 CFR 71.51 [4.1]
are delineated in Subsection 8.2.2, Leakage Tests
[8.4] for Normal Form and Special Form shipments.
Chapter 5 - No proposed changes Chapter 6 - No proposed changes Chapter 7 7-7 7.1.1.2 f
2nd bullet
- Install trunnions. Prior to the installation, apply an anti-vibration compound on the trunnion bolt threads.
- Install trunnions. Prior to the installation, apply an anti-vibration compound on the trunnion screw threads.
7-8 7.1.2.1 c
1
- c. Depending upon the particular transport package model, remove the cask trunnions and install a lifting device specific to the facility. If using a forklift to transport the cask, protect the cask surface and secure the cask to the forks with straps. If lifting by crane, with or without a spreader bar, the lifting slings must not make an angle greater than 30°,
measured from the vertical.
- c. Depending upon the particular transport package model, remove the trunnions from each side of the shipping cask and install a lifting device specific to the facility. If using a forklift to transport the cask, protect the cask surface and secure the cask to the forks with straps. If lifting by crane, with or without a spreader bar, the lifting slings must not make an angle greater than 30°, measured from the vertical.
List of Changes - AOS FM9054, Rev. J-4 (effective date 09-09-2024) 3 Page Heading / Item /
Step Para # / Item /
Step Line # / Item /
Step What is was (Revision J-3)
What it is (Revision J-4)
Justification (if needed) 7-8 7.1.2.1 f
2-3
- f. Visually inspect the cask and cask lid sealing surfaces for damage or foreign material. The presence of foreign material or deep radial scratches that may result in a failed Pre-Shipment Leakage Rate test should be repaired or replaced, as required, and AOS is to be notified for written disposition.
- f. Visually inspect the cask and cask lid sealing surfaces for damage or foreign material. The presence of foreign material and/or deep radial scratches that may result in a failed Pre-Shipment Leakage Rate test must be properly cleaned and/or repaired -or-the affected component must be replaced, as required, and AOS is to be notified for written disposition.
7-9 7.1.2.3 Note 3 - end Note: Visually inspect the cask and lid sealing surfaces, as well as the cask lid seal to be used, for damage that can prevent proper sealing of the sealing joint. Refer to Subsection 8.2.2, Leakage Tests [8.4], for detailed inspection of these items.
If the metallic cask lid seal is replaced, prior to the shipment of Normal Form material, a Maintenance Test must be performed, in accordance with ANSI N14.5 (Reference [7.8]). The elastomeric seal option is acceptable for use only with Special Form contents, in which the cask contents provide containment for the radioactive contents.
Note: Visually inspect the cask and lid sealing surfaces, as well as the cask lid seal to be used, for damage that can prevent proper sealing of the sealing joint. Refer to Subsection 8.2.2, Leakage Tests [8.4], for detailed inspection of these items.
If the cask lid metallic seal is replaced, prior to the shipment of Normal Form material, a Maintenance Test must be performed in accordance with ANSI N14.5 (Reference [7.8]).
For the shipment of Special Form material, a new or previously used cask lid elastomeric seal -or-new or previously used cask lid metallic seal may be used:
When the radioactive contents are certified as Special Form sources and containment is provided by the sealed source, and After a Pre-Shipment Leak test has been performed (refer to Paragraph 7.1.3.3, Pre-Shipment Leak Testing, Test A1 or A2, as appropriate 7-10 7.1.3.1 b, b.1 all
- a. Lubricate the cask lid attachment bolts with a lubricant such as Neolube No. 2. The lubricant must be approved by AOS. In the case of wet loading, the lubricant must be applied after the cask has been removed from the pool and dried.
- b. Torque the cask lid attachment bolts (refer to Table 7-2), using one of the two conditions listed below.
- 1. If the cask was dry loaded - Torque the cask lid attachment bolts in a crisscross pattern, with a final pass all the way around, to ensure even seal compression after the elastomeric seal has been visually inspected or installed, -or-a new metallic seal has been installed.
- a. Lubricate the cask lid attachment bolts with a lubricant such as Neolube No. 2. The lubricant must be approved by AOS. In the case of wet loading, the lubricant must be applied after the cask has been removed from the pool and dried.
<b. removed>
- 1. If the cask was dry loaded - Install the cask lid attachment bolts and torque the bolts in a crisscross pattern, with a final pass all the way around, to ensure even seal compression.
List of Changes - AOS FM9054, Rev. J-4 (effective date 09-09-2024) 4 Page Heading / Item /
Step Para # / Item /
Step Line # / Item /
Step What is was (Revision J-3)
What it is (Revision J-4)
Justification (if needed) 7-10 7.1.3.1 b.2.f 1-3
- f. Install the cask lid elastomeric seal after it has been visually inspected, -or-a new cask lid metallic seal onto the cask lid, then re-install the bolts and torque the cask lid attachment bolts in a crisscross pattern, with a final pass all the way around, to ensure even seal compression.
- f. Visually inspect and install the cask lid seal. For shipments of Normal Form material, a new cask lid metallic seal must be used. For shipments of Special Form material, a new or previously used elastomeric seal -or-new or previously used metallic seal may be used. Re-install the cask lid attachment bolts and torque the bolts in a crisscross pattern, with a final pass all the way around, to ensure even seal compression.
7-10 7.1.3.1 Note 1-3 Note: For shipments of Special Form material, a Maintenance Leak test is not necessary after replacing a cask lid elastomeric seal, provided that a Periodic Leak test has been performed on the casks containment system within the past 12 months.
Note: For shipments of Special Form material, a Maintenance Leak test is not necessary after replacing a cask lid elastomeric -or-metallic seal, provided that a Periodic Leak test has been performed on the casks containment system within the past twelve (12) months.
(Justification: Per SAR sections 1.2.1.1, 4.1, 4.2.1, and 4.3 When the radioactive contents are encapsulated in Special Form sources, containment is provided by the sealed source.)
7-12 7.1.3.3 1
2-5 To verify that the transport packages containment system is properly assembled for shipment, perform one of the following Pre-Shipment Leak tests - Test A1, A2 or B - depending on the content and cask lid seal type. Tests A1 and A2 are minimum requirements that contain Special Form contents.
Test B is the minimum test required for shipments that contain Normal Form content. However, Test B can be performed in lieu of Tests A1 or A2.
To verify that the transport packages containment system is properly assembled for shipment, perform one of the following Pre-Shipment Leak tests - Test A1, A2, or B - depending on the content and cask lid seal type. Tests A1 and A2 (with elastomeric -or-metallic seals) are minimum requirements that contain Special Form content. Test B (with a metallic seal only) is the minimum test required for shipments that contain Normal Form content.
However, Test B can be performed in lieu of Test A1 or A2.
7-12 7.1.3.3 Test A1 1
a 2
1 2
Test A1 - Gas Pressure Rise: For Special Form Contents (Tests: Cask Lid(s), Vent and Drain Ports)
To perform a pre-shipment verification of the elastomeric lid seal:
- a. Perform the test by evacuating the space between the cask lid seals elastomeric O-Ring seals, -or-the cavities outside the cask vent and drain ports, and then measuring the pressure rise.
Test A1 - Gas Pressure Rise: For Special Form Contents [Tests: Cask Lid(s), Vent and Drain Ports]
To perform a pre-shipment verification of the cask lid elastomeric -or-metallic seal:
- a. Perform the test by evacuating the space between the cask lid seals elastomeric O-Ring seals -or-metallic double C cross-section seal, -or-the cavities outside the cask vent and drain ports, and then measuring the pressure rise.
7-13 7.1.3.3 Test A2 1
a 2
1 2
Test A2 - Gas Pressure Drop: For Special Form Contents (Tests: Cask Lid(s), Vent and Drain Ports)
To perform a pre-shipment verification of the elastomeric lid seal:
- a. Perform the test by evacuating the space between the cask lid seals elastomeric O-Ring seals, -or-the cavities outside the cask vent and drain ports, and then measuring the pressure drop.
Test A2 - Gas Pressure Drop: For Special Form Contents [Tests: Cask Lid(s), Vent and Drain Ports]
To perform a pre-shipment verification of the cask lid elastomeric -or-metallic seal:
- a. Perform the test by pressurizing the space between the cask lid seals elastomeric O-Ring seals
-or-metallic double C cross-section seal, -or-the cavities outside the cask vent and drain ports, and then measuring the pressure drop.
List of Changes - AOS FM9054, Rev. J-4 (effective date 09-09-2024) 5 Page Heading / Item /
Step Para # / Item /
Step Line # / Item /
Step What is was (Revision J-3)
What it is (Revision J-4)
Justification (if needed) 7-13 7.1.3.3 Test B a
2 1
Test B - Helium Mass Spectrometer Leak Test:
For Normal Form Contents (Tests: Lid (Cask Lid Seal), Vent and Drain Ports)
To leak test the containment system:
- a. The cask lid seal, and vent and drain threaded pipe plugs must be leak-tested in accordance with test method A.5.3 or A.5.4 from ANSI N14.5-2014
[7.8]. The acceptance criteria is 1 x 10-7 ref-cm3/sec air at an upstream pressure of a minimum of 1 atmosphere and downstream pressure of 0.01 atmosphere absolute or less. The test procedure sensitivity must be one-half of the reference air leakage rate (i.e., 5 x 10-8 ref-cm3/sec of air) or less.
Test B - Helium Mass Spectrometer Leak Test:
For Normal Form Contents [Tests: Cask Lid Metallic Seal, Vent and Drain Port Pipe Plugs]
To leak test the containment system:
- a. The cask lid metallic double C cross-section seal, and threaded cask vent and drain port pipe plugs must be leak-tested in accordance with test method A.5.3 or A.5.4 from ANSI N14.5-2014 [7.8].
The acceptance criteria is 1 x 10-7 ref-cm3/sec air at an upstream pressure of a minimum of 1 atmosphere and downstream pressure of 0.01 atmosphere absolute or less. The test procedure sensitivity must be one-half of the reference air leakage rate (i.e., 5 x 10-8 ref-cm3/sec of air) or less.
7-15 Figure 7-5 Caption 1
Latch Pin Security Seal Impact Limiter Latch Pin Security Seal (Model AOS-025) 7-16 Figure 7-6 Caption 1
Turnbuckle Pin Security Seal Impact Limiter Turnbuckle Security Seal (Models AOS-050 and AOS-100) 7-19 7.2.1 i
2nd bullet
- Install trunnions. Prior to the installation, apply an anti-vibration compound on the trunnion bolt threads.
- Install trunnions. Prior to the installation, apply an anti-vibration compound on the trunnion screw threads.
Chapter 8 8-17 8.2.2 Note 1-3 Note: Elastomeric O-Rings must be visually inspected for cuts, blemishes, debris, and/or permanent local deformation on the sealing surface.
Damaged seals must be replaced. Elastomeric O-Rings must be replaced every 12 uses or once per year, whichever comes first.
Note: For Special Form material shipments only
- The O-Rings used in the cask lid elastomeric seals, -or-reused cask lid metallic seals, must be visually inspected for cuts, blemishes, debris, and/or permanent local deformation on the sealing surface.
Damaged seals must be replaced. Elastomeric O-Rings -or-reused cask lid metallic seals must be replaced every twelve (12) uses -or-every twelve (12) months, whichever comes first, or if damaged.
8-17 8.2.2 a
2
- a. Pre-shipment Leak Testing Pre-shipment leak testing must be performed before each shipment, after the content is loaded and the containment system is assembled. Perform the test as described in Paragraph 7.1.3.3.
- a. Pre-shipment Leak Testing Pre-shipment leak testing must be performed before each shipment, after the content is loaded and the containment system is assembled. Perform the test as described in Paragraph 7.1.3.3, Pre-Shipment Leak Testing - Test A1 or A2 (Special Form content) -or-Test B (Normal Form content).
List of Changes - AOS FM9054, Rev. J-4 (effective date 09-09-2024) 6 Page Heading / Item /
Step Para # / Item /
Step Line # / Item /
Step What is was (Revision J-3)
What it is (Revision J-4)
Justification (if needed) 8-17 8.2.2 b
3
- b. Periodic Leak Testing Periodic leak testing must be performed prior to the transport packages first use, after its third use, annually, and/or prior to the transport package being used after a storage period of more than one (1) year. The cask lid seal, vent and drain threaded pipe plugs, and the port plug conical seal must be leak-tested in accordance with ANSI N14.5-2014 [8.4].
The acceptance criteria is 1 x 10-7 ref-cm3/sec air at an upstream pressure of a minimum of 1 atmosphere and downstream pressure of 0.01 atmosphere absolute or less. The test procedure sensitivity must be one-half of the reference air leakage rate (i.e., 5 x 10-8 ref-cm3/sec of air) or less.
- b. Periodic Leak Testing Periodic leak testing must be performed prior to the transport packages first use, after its third use, annually, and/or prior to the transport package being used after a storage period of more than one (1) year. The cask lid metallic seal, threaded cask vent and drain port pipe plugs, and the port plug conical seal must be leak-tested in accordance with ANSI N14.5-2014 [8.4]. The acceptance criteria is 1 x 10-7 ref-cm3/sec air at an upstream pressure of a minimum of 1 atmosphere and downstream pressure of 0.01 atmosphere absolute or less. The test procedure sensitivity must be one-half of the reference air leakage rate (i.e., 5 x 10-8 ref-cm3/sec of air) or less.
8-17a 8.2.2 c
4
- c. Maintenance Leak Testing Maintenance leak testing is performed to confirm that maintenance, repair, and/or replacement of components has not degraded containment system performance. The portion of the containment system affected by the maintenance, repair and/or component replacement must be leak-tested in accordance with ANSI N14.5-2014 [8.4]. The acceptance criteria is 1 x 10-7 ref-cm3/sec air at an upstream pressure of a minimum of 1 atmosphere and downstream pressure of 0.01 atmosphere absolute or less. The test procedure sensitivity must be one-half of the reference air leakage rate (i.e., 5 x 10-8 ref-cm3/sec of air) or less.
- c. Maintenance Leak Testing Maintenance leak testing is performed to confirm that maintenance, repair, and/or replacement of components has not degraded containment system performance. The portion of the containment system affected by the maintenance, repair and/or component replacement must be leak-tested using a cask lid metallic seal in accordance with ANSI N14.5-2014 [8.4]. The acceptance criteria is 1 x 10-7 ref-cm3/sec air at an upstream pressure of a minimum of 1 atmosphere and downstream pressure of 0.01 atmosphere absolute or less. The test procedure sensitivity must be one-half of the reference air leakage rate (i.e., 5 x 10-8 ref-cm3/sec of air) or less.
8-17a 8.2.2 Notes (1st) 1 - 5 Notes: For shipments of Special Form material, a Maintenance Leak test is not necessary after replacement of a cask lid elastomeric seal, provided that a Periodic Leak test has been performed on the casks containment system within the past 12 months and a Pre-Shipment Leak test is performed in accordance with Paragraph 7.1.3.3.
Periodic and Maintenance Leak testing on casks prior to April 2016 may have been performed in accordance with the 1997 edition of ANSI N14.5.
Notes: For Special Form material shipments only A Maintenance Leak test is not necessary after replacement of a cask lid elastomeric seal -or-reused cask lid metallic seal, provided that a Periodic Leak test has been performed on the casks containment system within the past twelve (12) months and a Pre-Shipment Leak test is performed in accordance with Paragraph 7.1.3.3, Pre-Shipment Leak Testing.
Periodic and Maintenance Leak testing on casks prior to April 2016 may have been performed in accordance with the 1997 edition of ANSI N14.5.
Chapter 9 - No proposed changes
---