Effectiveness and reliability of inservice inspection: a Round Robin test

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5274123

Doctor, S R; Selby, G P; Heasler, P G; Becker, F L

An ongoing program, under the sponsorship of the US Nuclear Regulatory Commission (NRC), is directed toward measuring the effectiveness and reliability of inservice inspection (ISI) of Light Water Reactor systems. As a part of this program, a Round Robin is being conducted on the reliability of primary piping system ISI. The Round Robin involves six inspection teams, approximately 1500 test sample measurements, and 3240 inspection manhours over a period of seven months. The test materials include 254 mm (10 in.) Schedule 80 stainless pipe, with intergranular stress corrosion (IGSCC) and fatigue cracks, as well as 844.6 mm (33-1/4 in.) diameter centrifugally cast stainless steel and clad ferritic PWR main coolant pipes with fatigue cracks. Principle results of the Round Robin to be reported include: probability of detection and recording probability as a function of material, crack type, size and location (near or far side of the weld); the effectiveness of Code required sensitivity, field procedures, and an improved procedure; and the influence of access conditions (laboratory and field conditions).

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5274123
• Report Number(s): PNL-SA-10432; CONF-820563-4; ON: DE82016312
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ALLOYS
COOLING SYSTEMS
CRACKS
ENERGY SYSTEMS
FATIGUE
FERRITIC STEELS
IN-SERVICE INSPECTION
INSPECTION
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
PIPES
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
STEELS
WATER COOLED REACTORS