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استاندارد ASTM E165
تست مایعات نافذ (PT)
نسخه 2012
توضیح کامل انجام این تست
Standard Practice for
Liquid Penetrant Examination for General Industry
Scope:
1.1 This practice
covers procedures for penetrant examina-
tion of materials. Penetrant testing is a nondestructive testing
method for detecting discontinuities that are open to the surface
such as cracks, seams, laps, cold shuts, shrinkage, laminations,
through leaks, or lack of fusion and is applicable to in-process,
final, and maintenance testing. It can be effectively used in the
examination of nonporous, metallic materials, ferrous and
nonferrous metals, and of nonmetallic materials such as non-
porous glazed or fully densified ceramics, as well as certain
nonporous plastics, and glass.
1.2 This practice also provides a reference:
1.2.1 By which a liquid penetrant examination process
recommended or required by individual organizations can be
reviewed to ascertain its applicability and completeness.
1.2.2 For use in the preparation of process specifications and
procedures dealing with the liquid penetrant testing of parts
and materials. Agreement by the customer requesting penetrant
inspection is strongly recommended. 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.
1.2.3 For use in the organization of facilities and personnel
concerned with liquid penetrant testing.
1.3 This practice does not indicate or suggest criteria for
evaluation of the indications obtained by penetrant testing. It
should be pointed out, however, that after indications have
been found, they must be interpreted or classified and then
evaluated. For this purpose there must be a separate code,
standard, or a specific agreement to define the type, size,
location, and direction of indications considered acceptable,
and those considered unacceptable.
استاندارد ASTM E165 در خصوص تست مایعات نافذ (PT) نسخه 2012
