Astm e 1417 pdf download

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Minimum and may be omitted. When developer is used, compo- sion, flowing, or spray. Hydrophilic emulsifier shall not be nents that are not inspected before the maximum bleedout time applied by brush. Foaming application of hydrophilic emulsi- shall be cleaned and reprocessed. When developer is not used, fier is permissible when approved by the CEO. Dry developer shall be applied in such a was qualified.

Whatever the nominal concentration is em- manner as to contact all surfaces to be inspected. This includes the maximum concentration that the tapping or light air blow-off not exceeding 5 psi 34 kPa. While Minimum and maximum developer dwell times shall be 10 min immersed, the emulsifier or part should be mildly agitated.

Dry developers shall not be used with Dwell time shall be the minimum required for adequate surface Type II penetrants. Nonaqueous developer shall be applied by spraying. Spray applications may include fixed For Type I penetrants, the developer shall be applied as a spray nozzles, spray wands, pump sprayers, or spray bottles uniform thin coating over the entire surface to be inspected.

Dwell time shall be the minimum required for entire surface to form a uniform, white coating to provide adequate surface penetrant removal, but unless otherwise suitable color contrast for the penetrant indications.

The approved by the cognizant engineering organization, shall not uniformity and thickness of the developer coating is important exceed two minutes per surface area. If the developer coating 7. The spray rinse parameters of 7. Unless otherwise specified, the minimum and 7. Evidence of over-removal shall maximum development times for nonaqueous developers are 10 min and 1 h respectively. For nonaqueous suspendable. Excessive background may be removed by additional touchup applica- developer, the developer container shall be frequently agitated tion of the hydrophilic emulsifier provided its maximum between applications.

Additional rinsing of the 7. If careful touch-up application of penetrants. Aqueous suspendable developers can be used with the hydrophilic emulsifier does not produce an acceptable both Type I and Type II penetrants. Aqueous developers may background, the part shall be cleaned and reprocessed.

Manual be applied to the component after rinsing. Developers shall be systems shall require the use of appropriate black light illumi- applied by spray, flowing, or immersion.

The applied developer nation to ensure adequate penetrant removal. Components shall be air dried or oven application of dry developer, nonaqueous developer, or exami- dried to the requirements of 7. Minimum and maximum nation without developer. The components should be drained development times, after the component is dry, are 10 min and of excess water but not dried before the application of aqueous 2 h.

Aqueous suspendable developers must be either constantly soluble or suspendable developers. The components shall be agitated to keep the particles from settling out of suspension or dried after the application of aqueous developers. Oven temperatures shall 7. Drying time shall only be appropriate requirements of 7. Components shall be. Components not interpreted before the 7. Longer times for more complete adaptation should be 7.

Inspectors shall not wear photochromic or controls necessary to ensure that the penetrant system, mate- permanently darkened lenses while processing or reviewing rials and equipment provide an acceptable level of perfor- parts under black light. Black lights shall meet the require- mance. The frequencies of the required checks in Table 1 are ments of 7. All areas of fluorescence shall be interpreted.

For facilities operating less Components with no indications or only nonrelevant indica- frequently, the frequency of daily and weekly checks and those tions shall be accepted. Components with relevant indications required at the start of each shift may be reduced accordingly, shall be evaluated with respect to the applicable acceptance but must be performed prior to processing of parts.

Monthly criteria. Components with excessive background fluorescence and quarterly checks shall be performed at the same frequency shall be cleaned and reprocessed. The NDT facility may perform 7. Components with no indications or only nonrelevant mance with an independent, laboratory. Records of tests, indications shall be accepted. Components with relevant indi- except as noted in Table 1, shall be maintained and available cations shall be evaluated with respect to the applicable for audit by the customer, the cognizant engineering organiza- acceptance criteria.

Components with excessive background tion, or regulatory agencies. Penetrant materials that are shall be cleaned and reprocessed. Tests Frequency Paragraph 7. Redevelopment time shall be at least Water Content— Monthly 7. If no indication reappears, the original Hydrophilic Emulsifier Immersion, Weekly 7.

This procedure may be per- Spray, or Flowing ConcentrationB formed twice for any given original indication. Dry Developer ConditionB Daily 7. After the mechanical operation, per 7. Emulsifier Removability As required 7. The process used for reexamination shall be at least as Comparative Penetrant Sensitivity As required 7. If the Special UV lighting Daily 7. Light Meter CalibrationB Semi-annually 7.

B may be carefully wiped with a solvent-dampened cotton swab The maximum time between verifications or checks may be extended when substantiated by technical data and approved by the Cognizant Engineering or brush, ensuring rapid evaporation so that the area for Organization. Immediately measure C Not required for Method C examinations. A longer materials poured into containers for use and are not reused are period may be used if a plan justifying this extension is not subject to the in-use penetrant requirements of 7.

For the supplier. Use of materials not conforming to AMS immersion applications, the concentration, as percent of vol- shall require approval by the cognizant engineering organiza- ume, shall be no higher than that specified by the penetrant tion prior to use and shall be allowed only when materials system supplier and shall not exceed that for which the system conforming to AMS are inadequate for the particular was qualified.

For Type II penetrants, the developer shall be applied over the entire surface to form a uniform, white coating to provide suitable color contrast for the penetrant indications. The uniformity and thickness of the developer coating is important for both types of penetrant systems.

If the developer coating thickness is too heavy for Type I systems such that the metallic surface is completely masked, the component shall be cleaned and reprocessed. Unless otherwise specified, the minimum and maximum development times for nonaqueous developers are 10 min and 1 h respectively. For nonaqueous suspendable developer, the developer container shall be frequently agitated between applications.

Aqueous developers may be applied to the component after rinsing. Developers shall be applied by spray, flowing, or immersion. The applied developer shall not be allowed to puddle and shall completely cover all surfaces to be inspected. Components shall be air dried or oven dried to the requirements of 7.

Minimum and maximum development times, after the component is dry, are 10 min and 2 h. Aqueous suspendable developers must be either constantly agitated to keep the particles from settling out of suspension or they must be thoroughly agitated prior to use to ensure that particles are in suspension.

The frequencies of the required checks in Table 1 are based on a facility operating daily. For facilities operating less frequently, the frequency of daily and weekly checks and those required at the start of each shift may be reduced accordingly, but must be performed prior to processing of parts.

Monthly and quarterly checks shall be performed at the same frequency as for full-time operations. The NDT facility may perform these process control operations or contract for their performance with an independent, laboratory. Records of tests, except as noted in Table 1, shall be maintained and available for audit by the customer, the cognizant engineering organization, or regulatory agencies.

Penetrant materials that are interpreted before the maximum developing time, and if required by specific procedures, monitored periodically during the developing time. Components not interpreted before the maximum developing time shall be cleaned and reprocessed. Longer times for more complete adaptation should be used if necessary. Inspectors shall not wear photochromic or permanently darkened lenses while processing or reviewing parts under black light.

All areas of fluorescence shall be interpreted. Components with no indications or only nonrelevant indications shall be accepted. Components with relevant indications shall be evaluated with respect to the applicable acceptance criteria.

Components with excessive background fluorescence shall be cleaned and reprocessed. Components with excessive background shall be cleaned and reprocessed. Redevelopment time shall be at least ten minutes, except nonaqueous redevelopment shall be three minutes minimum. If no indication reappears, the original indication is considered false. This procedure may be performed twice for any given original indication.

After the mechanical operation, the area shall be cleaned, etched if permitted , and reexamined. The process used for reexamination shall be at least as sensitive as the original process.

If the acceptance criteria is written in terms of discontinuity or flaw sizes, the discontinuity shall be measured. Measure the indication size at its largest dimension with a measuring device and the appropriate light that meets the requirements of 6. B The maximum time between verifications or checks may be extended when substantiated by technical data and approved by the Cognizant Engineering Organization.

C Not required for Method C examinations. A longer period may be used if a plan justifying this extension is prepared by the NDT facility and approved by the cognizant engineering organization, or by the facilities certified Level III. Refractometer values obtained shall be compared to actual values obtained from known concentrations of emulsifier. For immersion applications, the concentration, as percent of volume, shall be no higher than that specified by the penetrant system supplier and shall not exceed that for which the system was qualified.

Caked dry developer is unsatisfactory and shall be replaced. To check for fluorescence, apply a thin layer of in-use developer to a 4-in. Dry developer exhibiting ten or more fluorescent specks in a 4-in. The test panel selected shall be nonfluorescent and non-reflective and have a working surface color which provides a good contrast with the developer powder.

Immerse a clean aluminum panel, about 3 by 10 in. Observed fluorescence or failure to uniformly wet the panel is unsatisfactory and the developer shall be discarded or otherwise corrected, as appropriate. The check shall be performed by processing a known defect standard through the system using in-use penetrant, emulsifier if used and developer and appropriate processing parameters. The resulting indications will then be compared to the indications obtained using unused penetrant, emulsifier if used and developer.

This comparison may be made with records of previously obtained indications or with a similar known defect standard processed with unused materials from a hold-out sample. When required by the CEO or when the sensitivity or performance of the in-use materials falls below the performance of the unused materials, the in-use materials shall be checked in accordance with paragraphs 7.

Use of materials not conforming to AMS shall require approval by the cognizant engineering organization prior to use and shall be allowed only when materials conforming to AMS are inadequate for the particular application. Operators shall be alert to any changes in performance, color, odor, consistency, or appearance of all in-use penetrant materials and shall conduct the appropriate checks and tests if they have reason to believe the quality of the penetrant may have deteriorated.

Penetrant examination shall be conducted only after acceptable quality of materials has been established. When any of the above conditions are determined to be detrimental, the material shall be discarded or otherwise corrected, as appropriate.

Tests shall be in accordance with Test Method E with a representative sample of the unused penetrant serving as the reference. A longer period may be used if a plan justifying this extension is prepared by the NDT facility and approved by the cognizant engineering organization.

Black lights shall be checked at the intervals specified in Table 1 for cleanliness and integrity and shall be cleaned, repaired or replaced as appropriate. When requested, the manufacturer shall provide a certification thereof. The white light reading shall not exceed 2 fc When using borescopes or remote video examination equipment, the image or interpretation area being viewed shall have sufficient resolution to effectively evaluate the area of examination.

Battery powered black lights used to inspect parts shall have their intensity measured prior to use. Accept and continue Learn more about the cookies we use and how to change your settings. The values stated in each system may not be astmm equivalents; therefore, each system shall be used independently of the other.

These processes are applicable for the detection of discontinuities, such as lack of fusion, corrosion, cracks, laps, cold shuts, and porosity, that are open or connected to the asmt of the component under examination. This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website.

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