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ASTM E1417/E1417M-11

(Practice)

Standard Practice for Liquid Penetrant Testing

Standard Practice for Liquid Penetrant Testing

SIGNIFICANCE AND USE
This practice establishes the basic parameters for controlling the application of the liquid penetrant method. This practice is written so it can be specified on the engineering drawing, specification, or contract. It is not a detailed how-to procedure to be used by the inspector and, therefore, must be supplemented by a detailed procedure that conforms to the requirements of this practice. Specification E165 contains information to help develop detailed requirements.
SCOPE
1.1 This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal, and nonmetal components.  
Note 1—This practice replaces MIL-STD-6866
1.2 The penetrant examination processes described in this practice are applicable to in-process, final, and maintenance (in-service) examinations. 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 surface of the component under examination.
1.3 Caution must be exercised in the usage of elevated temperature with components manufactured from thermoplastic materials. Also, some cleaners, penetrants, and developers can have a deleterious effect on nonmetallic materials such as plastics. Prior to examination, tests should be conducted to ensure that none of the cleaning or examination materials are harmful to the components to be examined.
1.4 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 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.
1.6 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.

General Information

Status
Historical
Publication Date
14-Aug-2011
ICS
19.040 - Environmental testing
Technical Committee
E07 - Nondestructive Testing
Drafting Committee
E07.03 - Liquid Penetrant and Magnetic Particle Methods
Current Stage
Ref Project

Relations

Replaces
ASTM E1417-05e1 - Standard Practice for Liquid Penetrant Testing
Effective Date
15-Aug-2011
Replaced By
ASTM E1417/E1417M-11e1 - Standard Practice for Liquid Penetrant Testing
Effective Date
15-Aug-2011
Referred By
ASTM E2207-15(2021) - Standard Practice for Strain-Controlled Axial-Torsional Fatigue Testing with Thin-Walled Tubular Specimens
Effective Date
15-Aug-2011
Referred By
ASTM E3022-18 - Standard Practice for Measurement of Emission Characteristics and Requirements for LED UV-A Lamps Used in Fluorescent Penetrant and Magnetic Particle Testing
Effective Date
15-Aug-2011
Referred By
ASTM F1797-18(2022) - Standard Test Method for Acoustic Emission Testing of Insulated and Non-Insulated Digger Derricks
Effective Date
15-Aug-2011
Referred By
ASTM A962/A962M-23a - Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
Effective Date
15-Aug-2011
Referred By
ASTM F601-23 - Standard Practice for Fluorescent Penetrant Inspection of Metallic Surgical Implants
Effective Date
15-Aug-2011
Referred By
ASTM E2297-23 - Standard Guide for Use of UV-A and Visible Light Sources and Meters used in the Liquid Penetrant and Magnetic Particle Methods
Effective Date
15-Aug-2011
Referred By
ASTM B1015-20 - Standard Practice for Form and Style of Standards Relating to Refined Nickel and Cobalt and Their Alloys
Effective Date
15-Aug-2011
Referred By
ASTM A354-17e2 - Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
Effective Date
15-Aug-2011
Referred By
ASTM A456/A456M-08(2023) - Standard Specification for Magnetic Particle Examination of Large Crankshaft<brk/> Forgings
Effective Date
15-Aug-2011
Referred By
ASTM A1123/A1123M-22 - Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube
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15-Aug-2011
Referred By
ASTM F914/F914M-20 - Standard Test Method for Acoustic Emission for Aerial Personnel Devices Without Supplemental Load Handling Attachments
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15-Aug-2011
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ASTM F1430/F1430M-20 - Standard Test Method for Acoustic Emission Testing of Insulated and Non-Insulated Aerial Personnel Devices with Supplemental Load Handling Attachments
Effective Date
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E1417/E1417M–11
Standard Practice for
1
Liquid Penetrant Testing
ThisstandardisissuedunderthefixeddesignationE1417/E1417M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 2. Referenced Documents
1.1 This practice establishes the minimum requirements for 2.1 The following documents form a part of this practice to
conducting liquid penetrant examination of nonporous metal, the extent specified herein:
2
and nonmetal components. 2.2 ASTM Standards:
D95 Test Method for Water in Petroleum Products and
NOTE 1—This practice replaces MIL-STD-6866
Bituminous Materials by Distillation
1.2 The penetrant examination processes described in this
D2512 Test Method for Compatibility of Materials with
practice are applicable to in-process, final, and maintenance
Liquid Oxygen (Impact Sensitivity Threshold and Pass-
(in-service) examinations. These processes are applicable for
Fail Techniques)
the detection of discontinuities, such as lack of fusion, corro-
D6304 Test Method for Determination of Water in Petro-
sion, cracks, laps, cold shuts, and porosity, that are open or
leum Products, Lubricating Oils, and Additives by Coulo-
connected to the surface of the component under examination.
metric Karl Fischer Titration
1.3 Caution must be exercised in the usage of elevated
E165 PracticeforLiquidPenetrantExaminationforGeneral
temperature with components manufactured from thermoplas-
Industry
tic materials. Also, some cleaners, penetrants, and developers
E543 Specification for Agencies Performing Nondestruc-
can have a deleterious effect on nonmetallic materials such as
tive Testing
plastics. Prior to examination, tests should be conducted to
E1135 Test Method for Comparing the Brightness of Fluo-
ensure that none of the cleaning or examination materials are
rescent Penetrants
harmful to the components to be examined.
E1316 Terminology for Nondestructive Examinations
1.4 Units—The values stated in either SI units or inch-
E2297 Guide for Use of UV-A and Visible Light Sources
pound units are to be regarded separately as standard. The
and Meters used in the Liquid Penetrant and Magnetic
values stated in each system may not be exact equivalents;
Particle Methods
therefore,eachsystemshallbeusedindependentlyoftheother. 3
2.3 ASNT Standards:
Combining values from the two systems may result in non-
ANSI/ASNT-CP-189 Standard for Qualification and Certi-
conformance with the standard.
fication of Nondestructive Testing Personnel
1.5 All areas of this practice may be open to agreement
SNT-TC-1A Recommended Practice for Personnel Qualifi-
between the cognizant engineering organization and the sup-
cation and Certification in Nondestructive Testing
4, 5
plier, or specific direction from the cognizant engineering
2.4 Military Standards:
organization.
MIL-STD-792 Identification Marking Requirements for
1.6 This standard does not purport to address all of the
Special Purpose Components
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
priate safety and health practices and determine the applica-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
bility of regulatory limitations prior to use.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
1 4
This practice is under the jurisdiction of ASTM Committee E07 on Nonde- Copies of specifications, standards, drawings, and publications required by
structive Testing and is the direct responsibility of Subcommittee E07.03 on Liquid manufacturers in connection with specific acquisition functions should be obtained
Penetrant and Magnetic Particle Methods. from the contracting activity or as directed by the contracting officer.
5
Current edition approved Aug. 15, 2011. Published September 2011. Originally Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
´1
approved in 1991. Last previous edition approved in 2005 as E1417 – 05 . DOI: Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
10.1520/E1417_E1417M-11. dodssp.daps.dla.mil.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

-----------
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:E1417–05 Designation:E1417/E1417M–11
Standard Practice for
1
Liquid Penetrant Testing
ThisstandardisissuedunderthefixeddesignationE1417/E1417M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1
´ NOTE—Editorial corrections were made in August 2005.
1. Scope*
1.1 This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal, and
nonmetal components.
NOTE 1—This practice replaces MIL-STD-6866
1.2 The penetrant examination processes described in this practice are applicable to in-process, final, and maintenance
(in-service) inspections.examinations. 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 surface of the component under examination.
1.3 Caution must be exercised in the usage of elevated temperature with components manufactured from thermoplastic
materials.Also, some cleaners, penetrants, and developers can have a deleterious effect on nonmetallic materials such as plastics.
Prior to examination, tests should be conducted to ensure that none of the cleaning or inspectionexamination materials are harmful
to the components to be examined.
1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard.The SI units given
values stated in brackets are for information only. 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 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.
1.6 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.
2. Referenced Documents
2.1 The following documents form a part of this practice to the extent specified herein:
2
2.2 ASTM Standards:
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
D2512 Test Method for Compatibility of Materials with Liquid Oxygen (Impact Sensitivity Threshold and Pass-Fail
Techniques)
D6304 Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl
Fischer Titration
E165 Practice for Liquid Penetrant Examination for General Industry
E543 Specification for Agencies Performing Nondestructive Testing
E1135 Test Method for Comparing the Brightness of Fluorescent Penetrants
E1316 Terminology for Nondestructive Examinations Terminology for Nondestructive Examinations
E2297 Guide for Use of UV-A and Visible Light Sources and Meters used in the Liquid Penetrant and Magnetic Particle
Methods
1
This practice is under the jurisdiction ofASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.03 on Liquid Penetrant
and Magnetic Particle Methods.
Current edition approved Aug. 8, 2005. Published July 2005. Originally approved in 1991. Last previous edition approved in 1999 as E1417–99. DOI:
10.1520/E1417-05E01.
´1
Current edition approved Aug. 15, 2011. Published September 2011. Originally approved in 1991. Last previous edition approved in 2005 as E1417 – 05 . DOI:
10.1520/E1417_E1417M-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E1417/E1417M–11
3
2.3 ASNT Standards:
ANSI/ASNT-CP-189 Standard for Qualification and Certification of Nondestructive Testing Personnel
SNT-TC-1A Recommended Practice for Personnel Qualification
...

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ASTM E1417/E1417M-21e1(Practice)
Standard Practice for Liquid Penetrant Testing

SIGNIFICANCE AND USE
4.1 This practice establishes the basic parameters for controlling the application of the liquid penetrant method. This practice is written so it can be specified on the engineering drawing, specification, or contract. It is not a detailed how-to procedure to be used by the inspector and, therefore, must be supplemented by a detailed procedure that conforms to the requirements of this practice. Practice E165/E165M contains information to help develop detailed requirements.
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1.1 This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal and nonmetal components.
Note 1: This practice replaces MIL-STD-6866.  
1.2 The penetrant examination processes described in this practice are applicable to in-process, final, and maintenance (in-service) examinations. 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 surface of the component under examination.  
1.3 Caution must be exercised in the usage of elevated temperature with components manufactured from thermoplastic materials. Also, some cleaners, penetrants, and developers can have a deleterious effect on nonmetallic materials such as plastics. Prior to examination, tests should be conducted to ensure that none of the cleaning or examination materials are harmful to the components to be examined.  
1.4 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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.5 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.  
Note 2: Throughout this document, the term blacklight has been changed to UV-A to conform with the latest terminology in Terminology E1316. Blacklight can mean a broad range of ultraviolet radiation; fluorescent penetrant examination only uses the UV-A range.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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5.1 Liquid penetrant examination methods indicate the presence, location, and, to a limited extent, the nature and magnitude of the detected discontinuities. This practice is normally used for production examination of large volumes of parts or structures, where emphasis is on productivity. This practice offers a wide latitude in applicability when extensive and controlled conditions are available.
SCOPE
1.1 This practice describes procedures for visible liquid penetrant examination utilizing the water-washable process. It is a nondestructive practice for detecting discontinuities that are open to the surface such as cracks, seams, laps, cold shuts, laminations, isolated porosity, through leaks or lack of fusion and is applicable to in-process, final, and maintenance examination. This practice 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, and certain nonporous plastics, and glass.  
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1.2.1 A reference by which visible penetrant examination procedures using the water-washable process can be reviewed to ascertain their applicability and completeness.  
1.2.2 For use in the preparation of process specifications dealing with the visible, water-washable liquid penetrant examination of materials and parts. Agreement between the user and the supplier regarding specific techniques is strongly recommended.  
1.2.3 For use in the organization of the facilities and personnel concerned with the liquid penetrant examination.  
1.3 This practice does not indicate or suggest criteria for evaluation of the indications obtained. It should be noted, however, that after indications have been produced, they must be interpreted or classified and then evaluated. For this purpose there must be a separate code, specification, or a specific agreement to define the type, size, location, and orientation of indications considered acceptable, and those considered unacceptable.  
1.3.1 The user is encouraged to use materials and processing parameters necessary to detect conditions of a type or severity which could affect the evaluation of the product.  
1.4 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 Basis of Application—There are areas in this practice that may require agreement between the cognizant engineering organization and the supplier, or specific direction from the cognizant engineering organization. These areas are identified as follows:  
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1.6 This practice shall apply to specimens whose size meets the dimensions of the target board as described in 8.2.  
1.7 For test machines currently in use, this practice is not recommended for specimens exceeding 13 mm (1/2 in.) in thickness because of specimen cooling.  
1.8 Values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are provided for information only.  
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Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service

SIGNIFICANCE AND USE
4.1 The purpose of this guide is to furnish qualified technical personnel with pertinent information for use in selecting materials for oxygen service in order to minimize the probability of ignition and the risk of explosion or fire. It is not intended as a specification for approving materials for oxygen service.
SCOPE
1.1 This guide applies to nonmetallic materials, (hereinafter called materials) under consideration for oxygen or oxygen-enriched fluid service, direct or indirect, as defined below. It is intended for use in selecting materials for applications in connection with the production, storage, transportation, distribution, or use of oxygen. It is concerned primarily with the properties of a material associated with its relative susceptibility to ignition and propagation of combustion; it does not involve mechanical properties, potential toxicity, outgassing, reactions between various materials in the system, functional reliability, or performance characteristics such as physical aging, degradation, abrasion, hardening, or embrittlement, except when these might contribute to an ignition.  
1.2 When this document was originally published in 1980, it addressed both metals and nonmetals. Its scope has been narrowed to address only nonmetals and a separate standard Guide G94 has been developed to address metals.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: The American Society for Testing and Materials takes no position respecting the validity of any evaluation methods asserted in connection with any item mentioned in this guide. Users of this guide are expressly advised that determination of the validity of any such evaluation methods and data and the risk of use of such evaluation methods and data are entirely their own responsibility.
Note 2: In evaluating materials, any mixture with oxygen exceeding atmospheric concentration at pressures higher than atmospheric should be evaluated from the hazard point of view for possible significant increase in material combustibility.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM G128/G128M-15(2023)(Guide)
Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems

SIGNIFICANCE AND USE
4.1 The purpose of this guide is to introduce the hazards and risks associated with oxygen-enriched systems. This guide explains common hazards that often are overlooked. It provides an overview of the standards and documents produced by ASTM Committee G04 and other knowledgable sources as well as their uses. It does not highlight standard test methods that support the use of these practices. Table 1 provides a graphic representation of the relationship of ASTM G04 standards. Table 2 provides a list of standards published by ASTM and other organizations.  
4.2 The standards discussed here focus on reducing the hazards associated with the use of oxygen. In general, they are not directly applicable to process reactors in which the deliberate reaction of materials with oxygen is sought, as in burners, bleachers, or bubblers. Other ASTM Committees and products (such as the CHETAH program5) and other outside groups are more pertinent for these.  
4.3 This guide is not intended as a specification to establish practices for the safe use of oxygen. The documents discussed here do not purport to contain all the information needed to design and operate an oxygen-enriched system safely. The control of oxygen hazards has not been reduced to handbook procedures, and the tactics for using oxygen are not simple. Rather, they require the application of sound technical judgment and experience. Oxygen users should obtain assistance from qualified technical personnel to design systems and operating practices for the safe use of oxygen in their specific applications.
SCOPE
1.1 This guide covers an overview of the work of ASTM Committee G04 on Compatibility and Sensitivity of Materials in Oxygen-Enriched Atmospheres. It is a starting point for those asking the question: “What are the risks associated with my use of oxygen?” This guide is an introduction to the unique concerns that must be addressed in the handling of oxygen. The principal hazard is the prospect of ignition with resultant fire, explosion, or both. All fluid systems require design considerations, such as adequate strength, corrosion resistance, fatigue resistance, and pressure safety relief. In addition to these design considerations, one must also consider the ignition mechanisms that are specific to an oxygen-enriched system. This guide outlines these ignition mechanisms and the approach to reducing the risks.  
1.2 This guide also lists several of the recognized causes of oxygen system fires and describes the methods available to prevent them. Sources of information about the oxygen hazard and its control are listed and summarized. The principal focus is on Guides G63, G88, Practice G93, and Guide G94. Useful documentation from other resources and literature is also cited.  
Note 1: This guide is an outgrowth of an earlier (1988) Committee G04 videotape adjunct entitled Oxygen Safety and a related paper by Koch2 that focused on the recognized ignition source of adiabatic compression as one of the more significant but often overlooked causes of oxygen fires. This guide recapitulates and updates material in the videotape and paper.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements see Sections 8 and 11.  
Note 2: ASTM takes no position respecting the validity of any evaluation methods asserted in connection with any ite...

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ASTM
ASTM G154-23(Practice)
Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials

SIGNIFICANCE AND USE
5.1 The use of this apparatus is intended to induce property changes consistent with the end use conditions, including the effects of the UV portion of sunlight, moisture, and heat. Typically, these exposures would include moisture in the form of condensing humidity. Exposures are not intended to simulate the deterioration caused by localized weather phenomena, such as atmospheric pollution, biological attack, and saltwater exposure. Alternatively, the exposure may simulate the effects of sunlight through window glass. (Warning—Refer to Practice G151 for full cautionary guidance applicable to all laboratory weathering devices.)  
5.2 This practice provides general procedures for operating fluorescent UV lamp weathering devices that allow for a wide range of exposure conditions. Therefore, no reference shall be made to results from the use of this practice unless accompanied by a report detailing the specific operating conditions in conformance with Section 10.  
5.2.1 It is recommended that a similar material of known performance (a control) be exposed simultaneously with the test specimen to provide a standard for comparative purposes. Generally, two controls are recommended: one known to have poor durability and one known to have good durability. It is recommended that at least three replicates of each material evaluated be exposed in each test to allow for statistical evaluation of results.  
5.2.2 Comparison of results obtained from specimens exposed in the same model of apparatus should not be made unless reproducibility has been established among devices for the material to be tested.  
5.2.3 Comparison of results obtained from specimens exposed in different models of apparatus should not be made unless correlation has been established among devices for the material to be tested (see Guide D6631 for guidance).
SCOPE
1.1 This practice is limited to the basic principles for operating a fluorescent UV lamp and water apparatus; on its own, it does not deliver a specific result.  
1.2 It is intended to be used in conjunction with a practice or method that defines specific exposure conditions for an application along with a means to evaluate changes in material properties. This practice is intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window glass) and moisture as rain or dew in actual usage. This practice is limited to the procedures for obtaining, measuring, and controlling conditions of exposure.
Note 1: Practice G151 describes general procedures to be used when exposing nonmetallic materials in accelerated test devices that use laboratory light sources.
Note 2: A number of exposure procedures are listed in an appendix; however, this practice does not specify the exposure conditions best suited for the material to be tested.  
1.3 Test specimens are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent UV lamp sources are described.
Note 3: In this standard, the terms UV light and UV radiation are used interchangeably.  
1.4 Specimen preparation and evaluation of the results are covered in ASTM methods or specifications for specific materials. General guidance is given in Practice G151 and ISO 4892-1.
Note 4: General information about methods for determining the change in properties after exposure and reporting these results is described in ISO 4582 and Practice D5870.  
1.5 This practice is not intended for corrosion testing of bare metals.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 This standard is technically similar to ISO 4892-3 and ISO 16474-3.  
1.8 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, health, and...

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ASTM
ASTM F2111-22(Practice)
Standard Practice for Measuring Intergranular Attack or End Grain Pitting on Metals Caused by Aircraft Chemical Processes

SIGNIFICANCE AND USE
4.1 If not properly qualified, chemicals and chemical processes can attack metals used during aircraft maintenance and production. It is important to qualify only processes and chemical formulas that do not have any deleterious effects on aircraft metallic skins, fittings, components, and structures. This test procedure is used to detect and measure intergranular attack or pitting depth caused by aircraft maintenance chemical processes, hence, this test procedure is useful in selecting a process that will not cause intergranular attack or end grain pitting on aircraft alloys.  
4.2 The purpose of this practice is to aid in the qualification or process conformance testing or production of maintenance chemicals for use on aircraft.  
4.2.1 Actual aircraft processes in the production environment shall give the most representative results; however, the test results cannot be completely evaluated with respect to ambient conditions which normally vary from day to day. Additionally, when testing chemicals requiring dilutions, water quality and composition can play a role in the corrosion rates and mechanism affecting the results.  
4.2.2 Some examples of maintenance and production chemicals include: organic solvents, paint strippers, cleaners, deoxidizers, water-based or semi-aqueous cleaners, or etching solutions and chemical milling solutions.
SCOPE
1.1 This practice covers the procedures for testing and measuring intergranular attack (IGA) and end grain pitting on aircraft metals and alloys caused by maintenance or production chemicals.  
1.2 The standard does not purport to address all qualification testing parameters, methods, critical testing, or criteria for aircraft production or maintenance chemical qualifications. Specific requirements and acceptance testing along with associated acceptance criteria shall be found where applicable in procurement specifications, materials specifications, appropriate process specifications, or previously agreed upon specifications.  
1.3 Units—The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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