S9074-AQ-GIB-010/248 Rev 1
6-4.3.1 Brazing Personnel Training in Workmanship and Visual Acceptance Criteria. Training shall be administered in accordance with a program approved by one of the activity’s NAVSEA T9074 -AS-GIB-010/271 certified level III nondestructive test examiners. This program shall include: a. A written procedure covering all aspects of training and associated responsibility. A copy of the procedure shall be provided to the authorized representative for approval. b. Training in workmanship and detailed visual inspection requirements of all fabrication documents to which brazing is performed. c. Examinations covering all significant workmanship and visual inspection requirements to be passed by each person with a grade of no less than 75 percent. d. Approval of items (a), (b), and (c) by the level III examiner. e. Maintenance of examination records for each brazer or brazing operator, which shall include: name, fabrication/acceptance standards covered, date of test, and certifying signature of test administrator. f. Re-testing of each brazer or brazing operator every 3 years. g. Auditing of the entire program by the level III examiner to ensure adequacy. Audits shall be conducted at least once every 2 years. 6-4.4 ALTERNATE QUALIFICATION METHODS. As an alternative to 6-4.3.b, qualification requirements for brazers or brazing operators shall be satisfied as follows: a. By brazing a production joint which is UT inspected by qualified personnel and found satisfactory. Permission to use this method of establishing performance qualification must be obtained for each brazer and brazing operator from the authorized representative prior to start of the individual’s production work. b. By brazing satisfactory procedure qualification test assemblies. c. By having been qualified by other U.S. Government agencies, ABS, or ASME, within the limits covered by the qualification tests passed, provided evidence of qualification is verified and approved. 6-4.5 TRANSFER OF QUALIFICATION. Transfer of performance qualification from one activity to another is not permitted without specific approval of the authorized representative. 6-4.6 QUALIFICATION REQUIREMENTS. Brazer qualification shall consist of making a joint in the flat flow and vertical-up flow positions (see figure 7-23) with a minimum thickness of 1/8 inch. Each joint, when peeled or UT inspected, shall show bonding on at least 70 percent of the lapped area. Qualification with any one base material, any one flux and, except as required by 6-4.9.b, and any one brazing alloy qualifies for all combinations listed in table 7-12 for a given process. 6-4.6.1 Fabrication Document Requirements. Brazing to the requirements of a fabrication document shall require training and testing on the requirements of that document in accordance with 6-4.3.a. Documents addressed by 6-2.1 shall be considered a fabrication document where they apply. 6-4.7 RETESTS. If a performance qualification test assembly fails to meet the applicable requirements, a retest may be allowed under the following conditions: a. One retest may be made without further training for each test assembly that failed. b. Subsequent retests may be made for each test assembly that failed to meet the requirements, provided that the brazer or brazing operator has had at least 4 hours of training or practice designed to correct the reasons for the previous failures.
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