ML23013A344

Attachment 6 - HI-STORM 100 Amendment 16 Certificate of Compliance Appendix D, Changed Pages (Non-Proprietary)

ML23013A344
Person / Time
Site:	Holtec
Issue date:	01/13/2023
From:	Holtec
To:	Office of Nuclear Material Safety and Safeguards
Shared Package
ML23013A337	List: ML23013A338 ML23013A340 ML23013A341 ML23013A342 ML23013A343 ML23013A344 ML23013A345 ML23013A346 ML23013A347
References
5014956, EPID L-2021-LLA-0039
Download: ML23013A344 (1)

Text

Certificate of Compliance No. 1014 Appendix D Amendment No. 15 3-6 Design Features 3.0 Table 3-1 List of ASME Code Alternatives for HI-STORM Multi-Purpose Canisters (MPCs)

MPC Closure Ring, Vent and Drain Cover Plate Welds NB-5230 Radiographic (RT) or ultrasonic (UT) examination required.

Root (if more than one weld pass is required) and final liquid penetrant examination to be performed in accordance with NB-5245. The closure ring provides independent redundant closure for vent and drain cover plates. Vent and drain port cover plate welds are helium leakage tested. As an alternative, the helium leakage test does not have to be performed if the REDUNDANT PORT COVER DESIGN is used..

MPC Lid to Shell Weld NB-5230 Radiographic (RT) or ultrasonic (UT) examination required.

Only progressive liquid penetrant (PT) examination is permitted. PT examination will include the root and final weld layers and each approx. 3/8" of weld depth.

Holtec Letter 5014956 Attachment 6 1 of 1