ML21167A150

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Gns Non-proprietary Version - Test Specification Cask Structural Component Leak - Tightness Test Helium leak-tightness Test Procedure
ML21167A150
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Site: 07103088
Issue date: 06/24/2020
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GNS Gesellschaft fur Nuklear-Service mbH
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Saverot P/NMSS/DFM
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Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 GNS PV 360/82 Test specification Cask structural component -

Leak-tightness test Helium leak-tightness test procedure

- CASTORTHTRIAVR

  • Revision 3 Hssue date :24.06 2020 v>>>>rm*tr<<rs+* ""

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Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @)GNs Revision status Revision Data Author Explanation of the change with page number if necessary 0 21.12.2018 First issue.

1 14.02.2019 Completely reworked.

2 23.06.2020 Verification of the helium partial pressure in the cover added.

3 24.06.2020 Note in chapter 11 reworked and steps added.

The changes from the Rev. 1 of this report are marked by a vertical black line at the left text margin.

PV 360/82 Rev. 3 Page 2 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @GNs Inhaltsverzeichnis 1 Purpose, scope and introduction 4 2 Abbreviations and formula symbols used 5 3 Carrying out leak-tightness tests 6 3.1 Requirements on the test equipment and the test gas 6

3. 1.1 Helium leak detector 6 3.1.2 Test leak 6 3.1.3 Pressure measuring device 6 3.1.4 Temperature measuring device 6 3.1.5 Recorder 7 3.1.6 Vacuum pump for evacuating the helium chamber 7 3.1.7 Helium 7 3.2 Measurement times 7 3.3 Procedure for the helium background determination and determining the standard helium leakage rate 7 3.4 Filling the helium chamber for test objects without filling connection 8 3.5 General test preparations 8 3.5.1 Commissioning of the devices 8 3.5.2 Determining the corrected target leak rate of the test leak 8 3.5.3 Adjusting the leak detector 8 4 Target values for the helium leakage rate 9 5 Timing of the tests 10 6 Condition of the components to be tested 10 7 Recording 10 8 Cited documents 12 9 Calculation and evaluation 12 10 Preparation works 13 10.1 Test preparation 13 10.2 Determining the corrected target leak rate of the test leak 13 10.3 Adjusting the leak detector 14 11 Performing of the test.. 14 11.1 Test procedure for the 14 11.2 Test procedure for the 15 11.3 Test procedure for the blind flange Item 89, (Fig. 4) 17 11.4 Test procedure for the protection cap Item. 61, (Fig. 5) 18 11.5 Test procedure for the secondary lid Item 55, (Fig. 6) 19 Appendices 20 PV 360/82 Rev. 3 Page 3 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs 1 Purpose, scope and introduction The tests are intended to demonstrate compliance with the helium standard leak rate permissible for the entire containment system. By successfully passing the test, the functionality of the containment system in accordance with the specifications is proven.

CASTOR THTRIAVR packages according to the German design approval certificate D/4214/B(U) F-96, Rev. 11 are to be transported on the territory of the United States of America. This transport requires a revision of the existing certificate USA/0808/B(U) F-96, Rev. 0 for the revalidation of the German Certificate of Competent Authority.

to the leak test of the lids belonging to the containment system, which is mandatory prior to transport according to WKP 500.07-03 [1],

of the CASTORTHTRIAVR design.

This test procedure shall be applied only after approval by an Level Ill certificate holder according to ASNT NOT [4]. The leak tests are to be carried out analogous to

[2] as a helium leak test.

The following original components of an are to be leak-tested:

- Secondary lid, item 55,

- Blind flange, item 89,

- Protection cap, item 61.

The helium standard leak rate of each of the single components as well as the sum of all standard leak rates must be determined. The metal O-rings (item 70, item 71 and/or item 73 acc. to [3]) must be installed additionally in order to form a helium or test volume. The determined leak rates must be assigned to the single test objectives item 2, item 55, item 61, and item 89.

In case a component is leak-tested in all single leak rates must be summed up. In case multiple components are leak-tested together (e.g. and secondary lid) the measured total leak rate must be assumed for each of the components involved into the integral test. The primary lid, item 20 acc. to [3] must not be installed during the test.

PV 360/82 Rev. 3 Page 4 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @GNs 2 Abbreviations and formula symbols used AG')  : % of the DLV : display accuracy of the helium leak detector E  : Sensitivity of the background determination E,  : Sensitivity of the leak rate determination

[He :hPa  : Helium partial pressure in the helium chamber p1 :hPa  : Pressure in the helium chamber after evacuation p2  : hPa  : Pressure in the helium chamber after filling QANz :Pa*m?*s' : Helium leak rate display Qe  : Pa*m?*s' : Average helium leak rate Qek :Pa*m?s' : Corrected helium leak rate Qe1 :Pa*m?s' : First helium leak rate Qe2 :Pa*m?*s' : Second helium leak rate a :Pa*m?*s' : Leak rate after deducting the background Qs :Pa*m?*s'  : Target leak rate of the test leak Qs  : Pa*m?*s'  : Corrected target leak rate oft the test leak Osr :Pa*m?s'  : Standard helium leak rate Qr+ :Pa*m?s'  : Test leak rate during commissioning Qr2 :Pa*m?*s'  : Test leak rate during background determination Qr3  : Pa*m?*s'  : Test leak rate during leak rate determination Q0 :Pa*m?s'  : Background leak rate Quo :Pa*m?s'  : Background leak rate during commissioning Quk :Pa*m?s'  : Corrected background leak rate Qzu :Pa*m?*s'  : Permissible total standard helium leak rate TAcr *c  : Temperature of the test leak TEer *c  : Calibration temperature of the test leak AQu Pa*m?*s'  : Background leak rate difference between two measured values Qu AQ?  : %/°C  : Temperature dependency of the test leak AO2  : %/a  : Time dependency of the test leak At :a  : Time difference AT  :"c  : Temperature difference 2Qsr :Pa*m?*s'  : Total standard helium leak rate Note on the leak rate unit: 1Pa*m?*s'= 10hPa*ls' 1): Decade limit value PV 360/82 Rev. 3 Page 5 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs 3 Carrying out leak-tightness tests This chapter contains the details specified for the equipment, the measuring times and the generally applicable procedure.

3.1 Requirements on the test equipment and the test gas 3.1.1 Helium leak detector The helium leak-tightness test can be carried out with a commercially-available helium leak detector provided it has a detection limit sufficient for the standard leak rate to be verified.

The helium leak detector must have a linear output for connecting to the recorder.

3.1.2 Test leak The leak rate of the test leak should be of the same order of magnitude as the helium leak rate to be verified.

The sensitivity of the measurement setup should be > 50% during all measurements, independent of the leak rate of the test leak.

There must be a valid calibration certificate for the test leak used. The test leak must be marked with the expiry date of the calibration.

3.1.3 Pressure measuring device Measurement range '  : 1- 2000 hPa Maximum deviation  ?)  :+10hPa Display resolution  ?)  :<1hPa Recording connection  : Adapted to the recorder

1) The smallest, required measurement range is specified.
2) The stated values must be maintained in the 1- 2000 hPa range.

The pressure measurement should be independent of the type of gas. There must be a valid calibration certificate for the pressure measuring device used. The pressure measuring device must be marked with the expiry date of the calibration.

3.1.4 Temperature measuring device Measurement range " :0-100°C Maximum deviation  ?)  :+/-1.0K Display resolution  ?)  :<0.1K 1> The smallest, required measurement range is specified.

2) The stated values must be maintained in the 0 - 100 "C range.

PV 360/82 Rev. 3 Page 6 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs There must be a valid calibration certificate for the temperature measuring device used. The temperature measuring device must be marked with the expiry date of the calibration.

3.1.5 Recorder Input channels  : min. 2 Feed rate  ?)  : 5 to 30 mm/min Recorder width in y-direction  : min. 100 mm

3) The smallest, required setting range is specified. If a recorder with a larger setting range is used, the feed rate should be set in the above mentioned range.

Electronic recording devices that meet the standards of the FDA guideline 21 CFR may also be used.

3.1.6 Vacuum pump for evacuating the helium chamber The vacuum pump to be used must be selected according to the respective inspection task.

3.1.7 Helium Purity  : min. 3.0 (99,9 %)

3.2 Measurement times Before reading the display on the helium leak detector for Qne1, Qr3 and Qez, wait for a stationary or falling display. The measurement time in this condition is at least five minutes.

Comment:

This condition is also satisfied if the display fluctuates around a stationary or falling average value.

lf Q >> Qzl and it is not foreseeable that Qsr will become < Oz, waiting for a constant display is not required.

3.3 Procedure for the helium background determination and determining the standard helium leakage rate PV 360/82 Rev. 3 Page 7 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @Gs 3.4 Filling the helium chamber for test objects without filling connection The helium space is optionally filled according to the following methods:

The helium space is at first flushed with nitrogen and subsequently helium is sprayed in by means of a spray gun.

The helium partial pressure pe in the helium space is not known exactly and is conservatively estimated to be 3.5 General test preparations The general test preparations for carrying out helium leak-tightness tests are described in the following.

3.5.1 Commissioning of the devices As part of the preparatory work, all devices are placed in operation, the device data are recorded, and the recorder paper labeled. The labeling of the recorder paper ensures a unique assignment to the protocols to be filled out.

3.5.2 Determining the corrected target leak rate of the test leak After logging the data of the test leak, a temperature measurement is carried out on the metallic surface of the test leak and the corrected target leak rate of the test leak Qsk determined. If the ambient temperatures are not stable, the corrected target leak rate of the test leak must be determined immediately before the test.

3.5.3 Adjusting the leak detector The leak detector is adjusted before the first test. The proof of proper functioning must be provided at least once a day with a calibrated test leak.

To achieve better sensitivity when measuring OrL1, the leak rate display should be set so that the following applies: QNz - Quo > Qsk.

PV 360/82 Rev. 3 Page 8 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs 4 Target values for the helium leakage rate The permissible standard helium leak rate Qsr and total standard helium leak rate QzuL for the sealing barrier secondary lid (including body of the cask) are shown in the following table:

Standard-helium leak Component rate Qsr

( in cover filled with helium, filled with helium, see Fig. 2)

Please Note:

To ensure that with helium during the tests, the adhesive tape must be applied overlapping the previous test.

( , until filled with helium, see Fig. 3)

Blind flange (Item 89)

Protection cap (Item 61)

Secondary lid (Item 55)

Total standard-helium leak rate QzuL Item 89 Item 61 Item 55 PV 360/82 Rev. 3 Page 9 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs 5 Timing of the tests The following table shows the cask components which have to be tested with the belonging test timings.

Cask structural components 1l Test-Nr.:

1 2

Blind flange - Item 89 4 Protection cap - Item 61 3 Secondary lid - Item 55 5

1) According Part List-Nr. 500.07/1 [3]

6 Condition of the components to be tested The components which have to be tested, have to be dry and free of oil, dust and soiling's as far as they could influence the quality of the test results.

7 Recording The measured values and measurement results must be recorded during the test.

This PV 360/82 contains sheets for the records (PV 360/82 F01 - PV 360/82 F04) that can be used for logging.

The use of other templates is permissible if the following minimum details are included:

PV 360/82 Rev. 3 Page 10 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs

- Test location, test date

- Protocol number

- Current page and number of pages

- Test specification with revision level

- ID number of the test object

- Drawing number with revision level

- Condition of components

- Test pressure (He partial pressure)

- Test procedure

- Permissible individual and total leak rates (if required)

- All measured values required for calculation the leak rate (see measurement protocol)

- Type and serial number of test devices

- Leak detector

- Test leak

- Pressure measuring device

- Temperature measuring device

- Information about the test leak

- Target leak rate (from the protocol of the valid calibration)

- Dependency on temperature and time

- Fulfilled or not fulfilled

- Name and qualification of the inspector

- Inspection supervisor or works expert Recordings must be created for all inspections in addition to the measurement and test records. The following minimum information is required on the recordings:

- Date

- Feed rate

- Measuring ranges of the recorder

- Position and ID number of the components

- Assignment: Measured value / channel / colour

- Assignment to the protocols

- Measured values to be logged The data/time of the measured values must be marked on the corresponding recording curve during the recording.

PV 360/82 Rev. 3 Page 11 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs 8 Cited documents

[1]: WKP-Nr.: 500.07-03, Index: 12 Periodic inspection plan on a loaded cask for transport and storage CASTOR THTRIAVR

[2]: PV 360/17, Rev. 2 Test specification, Leak-tightness, Helium leak-tightness test procedure CASTOR THTRIAVR, Beladung

[3]: Part List, 500.07, Rev. 13 Cask for transport und storage, CASTOR THTRIAVR

[4]: ASNT Standard Topical Outlines for Qualification of Nondestructive Testing Personnel, (ANSI/ASNT CP-105-2016) 9 Calculation and evaluation Temperature difference of the test leak:

AT = Tcr- Tr Corrected target leak rate of the test leak:

Qsk = Qs*(1+0.01*AO,) T Sensitivity of the background determination:

E= (Qr2- Q) /Qsk Corrected background leak rate:

Quk = Qu /E Helium partial pressure in the helium chamber:

pHe p2- p1 Average helium leak rate:

Qe = (Qe1 + Q2) /2 Sensitivity of the leak rate determination:

E = (Qrs- Q) / Qsk Corrected helium leak rate:

Ok = Qe/Es PV 360/82 Rev. 3 Page 12 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs Leak rate after deducting the helium background QL= Qk - Quk If Q< 0, the following applies: Q < (decade limit value relative to Qe2)

  • AG Standard helium leak rate:

Qsr = Q* 1013 hPa /pre If no background value is subtracted from the corrected helium leak rate 0HeK, the following applies:

Qsr = Qek* 1013 hPa / pre 10 Preparation works 10.1 Test preparation Leak detector, test leak, pressure measuring device, temperature measuring device, recorder and vacuum pump have to be prepared according to the given equipment instructions and have to be put into operation. Run warm the helium leak detector and the vacuum pump. Record the equipment data (manufacturer/type/number) as well as the accuracy of indication of the leak detector AG, the APZ-Number (see F04).

Assure the continuity of the test hole(s).

10.2 Determining the corrected target leak rate of the test leak Record the data of the test leak in the measurement record (see F03):

Target leak rate of the test leak Os, calibration temperature of the test leak T REF, dependency on temperature and time AQ+, AQ2 and the calibration date.

Carry out the measurement of temperature on the metallic surface of the test leak.

Record the temperature of the test leak TACT in the measurement record (see F03).

Determine and record the time difference At between the test leak calibration date and the date of the test.

Determine and record the temperature difference AT according to the specification of the measurement record (F03).

Determine and record the corrected target leak rate of the test leak Qsk according to the specification of the measurement record (see F03).

PV 360/82 Rev. 3 Page 13 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs 10.3Adjusting the leak detector Open valve V (see appendix 1, s. 1) and start the leak detector.

Close valve Vr when reaching the leak detector measuring readiness.

Carry out the measurement of the background leakage rate of the leak detector.

Read Quc and record it in the measurement record (F03).

Open valve Vr.

If no automatic adjustment of the leak detector is carried out, set the leakage rate display.

Remark:

In order to get a better sensitivity, the leakage rate display is set as follows:

QNz - Quc > Qsk Carry out the measurement of the test leak leakage rate 0TL 1 at the starting. Read Qr+ and record it in the measurement record (see F03).

11 Performing of the test 11.1 Test procedure for the

1. Test preparation (carry out according appendix 1 and section 10).
2. Determination of the corrected background leak rate is not necessary.

Determining the standard helium rate

3. Connect the test equipment with the test space by the test adapter.
4. Assemble a suitable calibrated device for measurement of the helium partial pressure to the cover.
5. Close all valves.
6. Start the helium leak detector. After reaching the measuring readiness of the helium leak detector: Start the recorder.
7. Open valve V and evacuate the space to < 10 hPa.
8. Open valve V and start the helium leak detector.
9. Close valve V.
10. Flush first the cover with nitrogen and fill the cover subsequently with helium.
11. All openings of the cover must be closed immediately after filling with aluminum adhesive tape.
12. The helium partial pressure pHe in the helium chamber is conservatively estimated to be 300 hPa and is used for the following calculation.

PV 360/82 Rev. 3 Page 14 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs Note:

The minimum helium partial pressure orrust be verified by a suitable calibrated measuring device.

ls the helium partial pressure l. start the test procedure again from step 9!

13. Carry out the measurement of the first helium leak rate Qne+. Read Qt and record it in the F04.
14. Open valve Vr.
15. Carry out the measurement of the test leak rate during leak rate determination Ors. Read Qrs and record it in the F04.
16. Close valve Vr.
17. Carry out the measurement of the second helium leak rate Q2. Read Qe2 and record it in the F04.
18. Close all valves.

Note:

The minimum helium partial pressure oilmust be verified by a suitable calibrated measuring device.

Is the helium partial pressure start the test procedure again from step 9!

19. Stop the recorder. Shut down the equipment according to the specifications of the test record. Dismantle the test equipment and the filling equipment incl.

adapter.

20. Determine and record the average helium leak rate Qne according to F04.
21. Determine and record the sensitivity of the leak rate Es according to F04.
22. Determine and record the corrected helium leak rate Qek according to F04.
23. Determine and record the standard helium leak rate Qsr according to F03 and F04.

11.2Test procedure for

1. Test preparation (carry out according appendix 1 and section 10).
2. Determination of the corrected background leak rate is not necessary.

Determining the standard helium rate

3. Connect the test equipment with the test space by the test adapter.
4. Assemble a suitable calibrated device for measurement of the helium partial pressure to the cover.

PV 360/82 Rev. 3 Page 15 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @)GNs

5. Close all valves.
6. Start the helium leak detector. After reaching the measuring readiness of the helium leak detector: Start the recorder.
7. Oen valve Ve and evacuate the space ti
8. Open valve V and start the helium leak detector.
9. Close valve V.
10. Flush first the cover with nitrogen and fill the cover subsequently with helium.
11. All openings of the cover must be closed immediately after filling with aluminum adhesive tape.
12. The helium partial pressure pHe in the helium chamber is conservatively estimated to be l and is used for the following calculation.

Note:

The minimum helium partial pressure of l must be verified by a suitable calibrated measuring device.

ls the helium partial pressure l epeat step 9 r

13. Carry out the measurement of the first helium leak rate Qi+. Read Qe1 and record it in the F04.
14. Open valve Vr.
15. Carry out the measurement of the test leak rate during leak rate determination Qrs. Read Qrs and record it in the F04.
16. Close valve Vr.
17. Carry out the measurement of the second helium leak rate QHe2. Read Qe2 and record it in the F04.
18. Close all valves.

Note:

The minimum helium partial pressure of must be verified by a suitable calibrated measuring device.

Is the helium partial pressure - start the test procedure again from step 9!

19. Stop the recorder. Shut down the equipment according to the specifications of the test record. Dismantle the test equipment and the filling equipment incl.

adapter.

20. Determine and record the average helium leak rate Qn according to F04.
21. Determine and record the sensitivity of the leak rate Es according to F04.
22. Determine and record the corrected helium leak rate Qek according to F04.

PV 360/82 Rev. 3 Page 16 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs

23. Determine and record the standard helium leak rate Qsr according to F03 and F04.
24. Dismantle the 11.3 Test procedure for the blind flange Item 89, (Fig. 4)
1. Test preparation (carry out according appendix 1 and section 10).

Determining the corrected background leak rate

2. Connect the test equipment with the test space by the test adapter.
3. Close all valves.
4. Open valve Vo and start the helium leak detector.
5. Open valve Ve and evacuate the helium space to I
6. Start the helium leak detector. After reaching the measuring readiness of the helium leak detector: Start the recorder.
7. Close valve V.
8. Determine and record the pressure in the helium chamber after evacuation p1 according to F04.
9. Determine and record the background leak rate Ou according to F04.
10. Open valve Vr.
11. Carry out the measurement of the test leak rate during background determination Qr. Read Qr2 and record it in the F04.
12. Close valve Vn.
13. Determine and record the sensitivity of the background determination E according to F04.
14. Determine and record the corrected background leak rate Quk according to F03 and F04.

Determining the standard helium rate

1. Open valve Ve and fl the helium space with a pressure from to wan helium.
2. Close valve Ve.
3. Determine and record the average helium leak rate Qe according to F04
4. Determine and record the pressure in the helium chamber after filling p2 according to F04.
5. Determine and record helium partial pressure in the helium chamber pHe according to F04.
6. Carry out the measurement of the first helium leak rate Qe+. Read Qr1 and record it in the F04.
7. Open valve Vr.

PV 360/82 Rev. 3 Page 17 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs

8. Carry out the measurement of the test leak rate during leak rate determination Qrs. Read Qrs and record it in the F04.
9. Close valve Vn.
10. Carry out the measurement of the second helium leak rate Qe2. Read Qe2 and record it in the F04.
11. Close valve Vo.
12. Stop the recorder. Shut down the equipment according to the specifications of the test record. Dismantle the test equipment and the filling equipment incl.

adapter.

13. Determine and record the average helium leak rate 0He according to F04.
14. Determine and record the sensitivity of the leak rate Es according to F04.
15. Determine and record the corrected helium leak rate Qek according to F04.
16. Determine and record the leak rate after deduction the background Q and the standard helium leak rate Qsr according to F03 and F04.
17. Dismantle the test adapter and assemble the quick snap coupling.

11.4Test procedure for the protection cap Item. 61, (Fig. 5)

Determining the standard helium rate

1. Before assembling of the protection cap, the helium space is flushed with nitrogen and subsequently filled with helium.
2. The helium partial pressure pHe in the helium space is conservative estimated to e l ad is used for the tolowing calculation.
3. Test preparation (carry out according appendix 1 and section 10).
4. Connect the test equipment with the test space by the test adapter.
5. Close all valves
6. Open valve Vand start the helium leak detector.
7. Start the helium leak detector. After reaching the measuring readiness of the helium leak detector: Start the recorder.
8. Carry out the measurement of the second helium leak rate Q+. Read Qe1 and record it in the F04.

Remark:

Because of the contamination of the test space with helium, a longer relaxation time of the leakage rate signal Qt has to be expected.

9. Open valve Vr.
10. Carry out the measurement of the test leak rate during leak rate determination Qrs. Read Qrand record it in the F04.
11. Close valve V.

PV 360/82 Rev. 3 Page 18 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @)GNs

12. Carry out the measurement of the second helium leak rate Q2. Read Qe2 and record it in the F04.
13. Close valve VD.
14. Stop the recorder. Shut down the equipment according to the specifications of the test record. Dismantle the test equipment and the filling equipment incl.

adapter.

15. Determine and record the average helium leak rate 0He according to F04.
16. Determine and record the sensitivity of the leak rate Es according to F04.
17. Determine and record the corrected helium leak rate Qek according to F04.
18. Determine and record the standard helium leak rate Qsr according to F03 and F04.

11.5 Test procedure for the secondary lid Item 55, (Fig. 6)

1. Test preparation (carry out according appendix 1 and section 10).

Determining the standard helium rate

1. Determine and record the helium partial pressure in the helium space pHe according to F04 (Please taken the values from Chap. 11.3).
2. Carry out the measurement of the first helium leak rate Q. Read Qnet and record it in the F04.
3. Close all valves.
4. Open valve V and start the helium leak detector.
5. Open valve Vr.
6. Carry out the measurement of the test leak rate during leak rate determination Ors. Read Qr and record it in the F04.
7. Close valve Vr.
8. Carry out the measurement of the second helium leak rate Qn. Read Qne2 and record it in the F04.
9. Close valve Vo.
10. Stop the recorder. Shut down the equipment according to the specifications of the test record. Dismantle the test equipment and the filling equipment incl.

adapter.

11. Determine and record the average helium leak rate Q according to F04.
12. Determine and record the sensitivity of the leak rate Es according to F04.
13. Determine and record the corrected helium leak rate Qek according to F04.
14. Determine and record the standard helium leak rate Qsr according to F03 / F04.

PV 360/82 Rev. 3 Page 19 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs Appendices Appendix 1:

Page Item Title number Fig. 1 Test device and the filling device 1 Fig. 2 Test arrangement for testing of the Fig. 3 Test arrangement for testing of the Fig. 4 Test arrangement for testing of the blind flange Item 89 1 Fig. 5 Test arrangement for testing of the protection cap ltem 61 1 Fig. 6 Test arrangement for testing of the secondary lid Item 55 1 Page number total 6 Appendix 2:

Page Item Title number PV 360/82 F01 Test record of the helium leak-tightness test 1 Measurement protocol of the helium leak-tightness PV 360/82 F02 1 test -test leak data-Measurement protocol of the helium leak-tightness PV 360/82 F03 1 test -device data-Measurement protocol of the helium leak-tightness PV 360/82 F04 1 test -measurement data-Page number total 4 PV 360/82 Rev. 3 Page 20 of 20

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @)GNs TEST EQUIPMENT PLOTTER Test leak HELIUM-LEAK-DETECTOR TEST SPACE FILLING EQUIPMENT VACUUM PUMP HELIUM TEST SPACE Fig. 1: Test device and the filling device Appendix 1 to PV 360/82 Rev. 3 Page 1 of 6

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390 @QGNs Test Equipment p

Vacuurpump V Adapter SAV Aluminum adhesive tape Cover with low permeation coefficient Aluminum adhesive tape, circumference Fig. 2: Test arrangement for testing of the Appendix 1 to PV 360/82 Rev. 3 Seite 2 of 6

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@QGNs Test Equipment p [one I

I I

I I

I Adapter SAV Secondary lid Aluminum adhesive tape, circumference Cover with low permeation coefficient Fig. 3: Test arrangement for testing of the Appendix 1 to PV 360/82 Rev. 3 Page 3 of 6

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@QGNs FILLING EQUIPMENT

- - - - - - - - - TEST EQUIPMENT - - - - - - - - - j~_PL_

O_TT~

ER_ ~

VACUUM PUMP HELIUM TEST LEAK HELIUM-LEAK-DETECTOR ADAPTERTYPE AF BLIND FLANGE TEST SPACE ADAPTER TYP E SAV Fig. 4: Test arrangement for testing of the blind flange (Item 89)

Appendix 1 to PV 360/82 Rev. 3 Page 4 of 6

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@)GNs TEST EQUIPMENT PLOTTER HELIUM-LEAK-DETECTOR ADAPTERTYPE AF PROTECTION CAP TEST SPACE Fig. 5: Test arrangement for testing of the protection cap (Item 61)

Appendix 1 to PV 360/82 Rev. 3 Page 5 of 6

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@QGNs TEST EQUIPMENT PLOTTER HELIUM-LEAK-DETECTOR Protection plate Adaptertype AF Helium space Fig. 6: Test arrangement for testing of the secondary lid (Item 55)

Appendix 1 to PV 360/82 Rev. 3 Page 6 of 6

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@GNs Record No.: ------ Page: __ of:_

Test Record Helium Leak Test Type of Cask: ________ ldent-No.:

Test Procedure: _____ Rev.__ Drawing-No.: Rev.

Leakproof barrier:

Standard leakage rates determined and integral standard helium leakage rate:

according to measurement record No.: Page:_ of: -

No. Component: Item:

1. Qsr= Pa*m?/s Tester: Qualification:

Test place: Test date:

No. Component: Item:

2. Qsr= Pa*m?/s Tester: Qualification:

Test place: Test date:

No. Component: Item:

3. Qsr= Pa*m?/s Tester: Qualification:

Test place: Test date:

No. Component: Item:

4. Qsr= Pa*m?/s Tester: Qualification:

Test place: Test date:

No. Component: Item:

5. Qsr= Pa*m?/s Tester: Qualification:

Test place: Test date:

Target integral standard helium leakage rate:

Qzu = Pa*m?/s Integral standard helium leakage rate yQsr = Pa*m?/s Judgement: O Target fulfilled O Target not fulfilled Name Signature Date Supervisor/Manufacturer's works expert F01 Appendix 2 to PV 360/82 Rev. 3 Page 1 of 4

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@QGNs Record No.: ------- Page: __ of:_

Measurement Record Helium Leak Test Type of Cask: ________ ldent-No.:

Test Procedure: _____ Rev.__ Drawing-No.: R ev.

TEST LEAK DAT A Test leak manufacturer/ Type I No.:

Nominal leakage rate: Os = Pam?/s Calibration temperature: T REF = *c Temperature dependency: AO, =  %/°C Time dependency: AO, =  %/a Calibration date:

Test No.: 1 2 3 4 5 TEST LEAK TEMPERATURE AND TIME DIFFERENCE T,er *C At (time from calibration to test date) a DETERMINATION OF CORRECTED NOMINAL LEAKAGE RATE OF TEST LEAK AT = T,er- Te *C ls AT> 0C? YES' NO If YES:

Os = O*(1+0,01AO) AT,2') Pa*m?/s If NO:

Os =a, ') Pam%/s ADJUSTMENT OF LEAK DETECTOR 00, Pa*m?/s Or+ Pa-m?/s

1) Cross out non-applicable boxes!
2) Caution: numerical value equation: enter Qg in Pam%/s, AQ, in %/°C and AT in "C!

Test place/plant/institution: Test date: Time:

Qualification Name Signature Date Tester Supervisor/Manufacturer's works expert F02 Appendix 2 to PV 360/82 Rev.

Page 2 of 4

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@QGNs Record No.: ------ Page: of:

Measurement Record Helium Leak Test Type of Cask: _ldent-No.:

Test Procedure: _____ Rev.__ Drawing-No.: Rev.

EQUIPMENT DATA Pressure measuring instrument man. /

Type/ No.:

Temp. measuring instrument man. /

Type/ No.:

Helium leak detector man. /

Type/ No.

AG

% of DEW:

Test No. 1 2 3 4 I 5 Item of the Component ldent-No.

FILLING TYPE ')

1) Information only required for test objects without filling connection (e.g. under spray or PE pipe). For other test objects: cross out box!

Test place/plant/institution: Test date:

Qualification Name Signature Date Tester Supervisor/Manufacturer's works expert F03 Appendix 2 to PV 360/82 Rev. 3 Page 3 of 4

Non-Proprietary Version Proprietary information withheld per 10 CFR 2.390

@)GNs Record No.: ------- Page: of:

Measurement Record Helium Leak Test Type of Cask: ldent-No.:

Test Procedure: _____Rev. Drawing-No.: Rev.

CORRECTED BACKGROUND LEAKAGE RATE Test No. 1 2 3 4 5 p, hPa a Pa*m3/s Or2 Pa*m9/s E, = (Or-Q)/Os )

Oo = 0/E Pa*m%/s STANDARD HELIUM LEAKAGE RATE p2 hPa Dre =p-pi hPa 0 Pa*m9/s Or, Pa m%/s O2 Pa*m?/s 0 = (0, + O2) /2 Pa*m9/s E, = (Or- O) /Os Oak = 0a./E Pa*m9/s o, = Oak- Ook Pa*m%/s

>>)

0sr =O*1013hPa/pa Pa*m?/s Test place:

Test date:

Tester:

  • It Or is <0,then: Os < (decade final value referring to O4.2) AG 1013 hPa /pa Name Signature Date F04 Appendix 2 to PV 360/82 Rev. 3 Page 4 of 4
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