Don't you believe that the two references have been mixed up?
NB-2410 GENERAL REQUIREMENTS
(a) All welding material used in the construction and.......;

(5) drop weight test for material as-welded or heat
treated, or both (NB-2332);
(6) Charpy V-notch test for material as-welded or
heat treated, or both (NB-2331); the test temperature and
the lateral expansion or the absorbed energy shall be
provided;
Mauro