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
|Published (Last):||8 February 2014|
|PDF File Size:||20.26 Mb|
|ePub File Size:||1.32 Mb|
|Price:||Free* [*Free Regsitration Required]|
The part then needs to be cleaned to remove the penetrant and the developer.
ASTM E – 02 Standard Test Method for Liquid Penetrant Examination
Then the surface must be allowed to dry. It should be pointed out, however, that after indications have been produced, they must be interpreted or classified and then evaluated. Box Dubuque, IA Phone: 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. As soon as the material is dry, the developer is applied.
They can be effectively used in the examination of nonporous, metallic r165-02, both ferrous and nonferrous, and of nonmetallic materials such as glazed or fully densified ceramics, certain nonporous plastics, and glass.
A scratch or a pore can easily be misinterpreted as a crack or flaw, and this can lead to unnecessary and costly repairs. It is a common misconception to label a discontinuity as a crack. This can take minutes after the developer is applied. This is typically done with a special cleaning solvent. An example of a gear tooth crack that was made more visible using a dye penetrant examination is shown in Figure 1.
The surface then needs to be solvent cleaned to remove any greases or oils. Liquid penetrant testing Liquid penetrant inspection e65-02 the most popular method to check for surface cracks because it is simple and no special equipment is required.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the aetm. 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:. In most cases, the discontinuities are visible to the naked eye without liquid penetrant testing. These inspections can increase the reliability of the part by providing early detection of flaws that could lead to a failure.
Non-destructive examination NDE awtm used to detect cracks and other flaws in a part without rendering the part unusable by performing destructive testing. This technique can be used on a variety of ferrous and non-ferrous materials, including steel, stainless steel, aluminum, bronze, tungsten carbide, ceramics and plastics.
Care must be taken not to overly clean and remove the penetrant from the discontinuities. The visible dye penetrant technique involves the following steps: They are nondestructive testing methods for detecting discontinuities that are open to the surface such as cracks, seams, laps, cold shuts, laminations, through leaks, or lack of fusion and are applicable to in-process, final, and maintenance examination.
Some equipment manufacturers allow some surface indications, depending on their size and location on a particular part. The correct term for a discontinuity is e1165-02 indication, which is not necessarily a crack or a flaw. SI units are provided for information only. The developer brings ee165-02 penetrating oil out of the discontinuities by a blotting action.
Another technique involves the use of an ultraviolet light to view the surface discontinuities. Also, there are no universal acceptance criteria on the maximum allowable size of an indication. Cracks typically show up as red lines and pits usually look like red dots. Work Item s – proposed revisions of this standard. To avoid this, any indications should be investigated by polishing and re-evaluating the indication.
Some of the most popular NDE methods include: The purpose of this article is to describe these basic NDE techniques and discuss some of the advantages and disadvantages of the different methods. After application of the developer, the visual inspection is done with a black light.
Penetrating oils typically contain a red dye and are sprayed or brushed onto the area of the material being tested. Non-destructive examination basics Patrick J. Advertisement 4 Go to Page 1 2 3 4 Edit Story. A suitable waiting time allows the penetrant to enter the surface discontinuities, and then excess penetrant can be removed.