ASTM E165-02 PDF

Buy ASTM E PRACTICE FOR LIQUID PENETRANT EXAMINATION FOR GENERAL INDUSTRY from SAI Global. ASTM E Standard Practice for Liquid Penetrant E Standard Practice for Liquid Penetrant Examination for General Industry View on Information. Find the most up-to-date version of ASTM E at Engineering

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Active view current version of standard. The penetrant that is trapped in any discontinuities will glow when viewed under a black light. A scratch or a pore can easily be misinterpreted as a crack or flaw, and this can lead to unnecessary and costly repairs. SI units are provided for information only.

A suitable waiting time allows the penetrant to enter the surface discontinuities, and then excess penetrant can be removed. The purpose of this article is to describe these basic NDE techniques and discuss some of the advantages and disadvantages of the different methods. The visible dye penetrant technique involves the following steps: Then the surface must be allowed to dry. Cracks typically show 1e65-02 as red lines and pits usually look like red dots.

Energy-Tech Magazine Contact us. Pre-clean the surfaces to be inspected. For this purpose there must be a separate code or specification or a specific agreement to define the type, size, location, and e165-2 of indications considered acceptable, and those considered unacceptable.

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Some of the most popular NDE methods include: With this technique, liquid penetrant is applied to the surface of a material and is drawn into surface discontinuities such as cracks, pits and seams by capillary action. Some equipment manufacturers allow some surface indications, depending on their size and location on a particular part.

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This might involve sandblasting, wire brushing, etc. To avoid this, any indications should be investigated by polishing and re-evaluating the indication. Box Dubuque, IA Phone: The reason is that some potable water sources contain chlorine, which can leave a residue on the surface and can lead to cracking in some stainless steels.

Work Item s – proposed revisions of this standard. Care must be taken not to overly clean and remove the penetrant from the discontinuities.

Liquid penetrant testing Liquid penetrant inspection is the most popular method to check for surface cracks because it is simple and no special equipment is required. One of the most critical aspects of liquid penetrant testing is interpreting and evaluating the discontinuities.

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A common recommendation is to use solvent and not potable water when cleaning stainless steel parts, such as turbine rotors, that will be highly stressed when in service. Link to Active This link will always route to the current Active version of the standard. The visible dye penetrant technique involves the following steps:.

This can take minutes after the developer is applied. The correct term for a discontinuity is an indication, which is not necessarily a crack or a flaw. Agreement by the user and the supplier regarding specific techniques is strongly recommended. These inspections can increase the reliability of the part by providing early detection of flaws that could lead to a failure.

After application of the developer, e16-02 visual inspection is done with a black light. They can be effectively used in the examination of nonporous, metallic materials, both ferrous and nonferrous, and of nonmetallic materials such as glazed or fully densified ceramics, certain nonporous plastics, and glass.

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The part then needs to be cleaned to remove the penetrant and the developer. Advertisement 4 Go to Page 1 2 3 4 Edit Story. Also, there are no e16-502 acceptance criteria on the maximum allowable size of an indication. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

This technique can be used on a variety of ferrous and non-ferrous materials, including steel, stainless e65-02, aluminum, bronze, tungsten carbide, ceramics and plastics.

Non-destructive examination basics Patrick J.

ASTM E165(02) Espaol.pdf

It is a common misconception to label a discontinuity as a crack. This method substitutes fluorescent penetrating oil for the visible dye penetrant.

The liquid penetrant examination just makes the discontinuities easier to see. The developer brings the penetrating oil out of the discontinuities by a blotting action.

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The surface then needs to be solvent cleaned to remove any greases or oils. In most cases, the discontinuities are visible to the naked eye without liquid penetrant testing. As soon as the material is dry, the developer is applied.

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.