ASME Sec. V (Nondestructive Examination) Flashcards
ASME Sec. V
What is the Minimum distance beyond the area to be examined to clean a part when performing an PT examination (NDE)?
ASME Sec. V (T-642) Surface Preparation
(T-642.b)
1”
(b) Prior to each liquid penetrant examination, the sur- face to be examined and all adjacent areas within at least I in. (25 mm) shall be dry and free of all dirt, grease, lint, scale, welding flux, weld spatter, paint, oil, and other extraneous matter that could obscure surface openings or
otherwise interfere with the examination.
ASME Sec. V
What is the Minimum distance beyond the area to be examined to clean a part when performing an MT examination (NDE)?
ASME Sec. V (T-741) Surface Conditioning
(T-741.1) Preparation
(T-741.1.b)
(b) Prior to magnetic particle examination, the surface to be examined and all adjacent areas within at least 1 in. (25 mm) shall be dry and free of all dirt, grease, lint, scale, welding flux and spatter, oil, or other extraneous matter that could interfere with the examination.
ASME Sec.V
What is the standard temperature range for a PT exam (NDE)?
ASME Sec.V
(T-652) Techniques for Standard Temperatures
As a standard technique, the temperature of the penetrant and the surface of the part to be processed shall not be below 40°F (5°C) nor above 125°F (S2°C) throughout the examination period. Local heating or cooling is permitted provided the part temperature remains in the range of 40°F to 125°F (5°C to 52°C) during the examination. Where it is not practical to comply with these temperature limitations, other temperatures and times may be used, provided the procedures are qualified as specified in T-653.
(T-653) Techniques for Nonstandard Temperatures
When it is not practical to conduct a liquid penetrant examination within the temperature range of 40°F to 120°F (5°C to 52°C), the examination procedure at the proposed lower or higher temperature range requires qualification of the penetrant materials and processing in accordance with Mandatory Appendix III of this Article.
ASME Sec.V
What is the maximum temperature for taking UT readings per Sec.V (NDE)?
ASME Sec.V (SE 797) Standard Practice for MeasuringThickness by Manual Ultrasonic Pulse·Echo Contact Method
(8) Technical Hazards
(8.5)
High-temperature materials, up to about 540°C (1,000F), can be measured with specially designed instruments with high-temperature compensation, search unit assemblies, and couplants. Normalization of apparent thickness readings for elevated temperatures is required. A rule of thumb often used is as follows: The apparent thickness reading obtained from steel walls having elevated temperatures is high (too thick) by a factor of about 1% per 55°C (100F). Thus, if the instrument was standardized on a piece of similar material at 20°C (68°F), and if the reading was obtained with a surface temperature of 460°C (860F), the apparent reading should be reduced by 8%. This correction is an average one for many types of steel. Other corrections would have to be determined empirically for other materials.
ASME Sec.V
What is the maximum temperature for magnetic particle testing per Sec.V (NDE)?
ASME Sec.V (Article 7) Magnetic Particle Examination
(T-731) Examination Medium
(T-731.c) Temperature Limitations
Manufacturer Recommended
Temperature Limitations. Particles shall be used within the temperature range limitations set by the manufacturer of the particles. Alternatively, particles may be used outside the particle manufacturer’s recommendations providing the procedure is qualified in accordance with Article 1, T-150 at the proposed temperature.
ASME Sec.V
Minimum range of pressure gauge used during a pressure test (multiplied by test pressure) (Testing)?
ASME Sec.V (T-1031)
(T-1031.a) 1.5
ASME Sec.V
Preferred range of pressure gauge used during a pressure test (multiplied by test pressure) (Testing)?
ASME Sec.V (T-1031)
(T-1031.a) 2
