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ASTM E1444/E1444M-12
Standard Practice for Magnetic Particle Testing
Automaticky preložený názov:
Štandardné praktiky pre Magnetic testovanie častíc
NORMA vydaná dňa 15.10.2012
Informácie o norme:
Označenie normy: ASTM E1444/E1444M-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.10.2012
Kód tovaru: NS-41775
Počet strán: 22
Približná hmotnosť: 66 g (0.15 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM E1444/E1444M-12 :
Keywords:
dye, fluorescent, FP, FPI, magnetic particle, MPI, MT, nondestructive evaluation, nondestructive examination, nondestructive testing, NDT, ICS Number Code 77.040.20 (Non-destructive testing of metals)
Doplňujúce informácie
| Significance and Use | ||||||||||||||||||
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4.1 Description of Process—Magnetic particle testing consists of magnetizing the area to be examined, applying suitably prepared magnetic particles while the area is magnetized, and subsequently interpreting and evaluating any resulting particle accumulations. Maximum detectability occurs when the discontinuity is positioned on the surface and perpendicular to the magnetic flux. 4.2 This practice establishes the basic parameters for controlling the application of the magnetic particle testing method. This practice is written so that it can be specified on the engineering drawing, specification, or contract. It is not a detailed how-to procedure to be used by the examination personnel and, therefore, must be supplemented by a detailed written procedure that conforms to the requirements of this practice. |
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| 1. Scope | ||||||||||||||||||
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1.1 This practice establishes minimum requirements for magnetic particle testing used for the detection of surface or slightly subsurface discontinuities in ferromagnetic material. Guide E709 can be used in conjunction with this practice as a tutorial. 1.2 The magnetic particle testing
method is used to detect cracks, laps, seams, inclusions, and other
discontinuities on or near the surface of ferromagnetic materials.
Magnetic particle testing may be applied to raw material, billets,
finished and semi-finished materials, welds, and in-service parts.
Magnetic particle testing is not applicable to non-ferromagnetic
metals and alloys such as austenitic stainless steels. See
1.3 All areas of this Practice may
be open to agreement between the Cognizant Engineering Organization
and the supplier, or specific direction from the Cognizant
Engineering Organization.
1.4 This standard is a combined standard, an ASTM standard in which rationalized SI units and inch-pound units are included in the same standard, with each system of units to be regarded separately as standard. 1.4.1 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||||||||||||
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