49.040 - Coatings and related processes used in aerospace industry
ICS 49.040 Details
Coatings and related processes used in aerospace industry
Beschichtungen und Beschichtungsverfahren der Luft- und Raumfahrttechnik
Revetements et procédés connexes pour la construction aéronautique
Prevleke in z njimi povezani postopki, ki se uporabljajo v letalski in vesoljski industriji
General Information
Frequently Asked Questions
ICS 49.040 is a classification code in the International Classification for Standards (ICS) system. It covers "Coatings and related processes used in aerospace industry". The ICS is a hierarchical classification system used to organize international, regional, and national standards, facilitating the search and identification of standards across different fields.
There are 221 standards classified under ICS 49.040 (Coatings and related processes used in aerospace industry). These standards are published by international and regional standardization bodies including ISO, IEC, CEN, CENELEC, and ETSI.
The International Classification for Standards (ICS) is a hierarchical classification system maintained by ISO to organize standards and related documents. It uses a three-level structure with field (2 digits), group (3 digits), and sub-group (2 digits) codes. The ICS helps users find standards by subject area and enables statistical analysis of standards development activities.
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This document specifies the characteristics and the tests required to qualify and control lots of high purity (≥99 %) aluminium coatings applied by ion-vapor deposition (IVD) on fasteners.
- Standard12 pagesEnglish languagee-Library read for1 day
This document specifies the characteristics and the tests required to qualify and control lots of high purity (≥99 %) aluminium coatings applied by ion-vapor deposition (IVD) on fasteners.
- Standard12 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for technical procedures, quality inspection, etc. for the surface treatment of martensitic, precipitation hardening and maraging stainless steel parts (e.g.400 series, 17-7PH, 17-4PH, 15-5PH, AM350, AM355, PH15-7Mo, PH13-8Mo, Custom 450 and 455 or equivalent). It provides practical methods for removing contaminants and for obtaining suitable corrosion resistance for aerospace applications. This document applies to the removal of organic and inorganic contaminants, surface cleaning, surface finishing and surface passivation before non-destructive inspection of martensitic, precipitation hardening and maraging stainless steel parts.
- Standard11 pagesEnglish languagesale 15% off
This document specifies requirements for producing and testing a dyed sulfuric acid anodic coating on aluminium alloys. The anodizing process is applied in the manufacture of aerospace products to improve paint adhesion and resistance to corrosion and can colour the part in accordance with the drawing requirements.
- Standard8 pagesEnglish languagesale 15% off
This document specifies the requirements for technical procedures, quality inspection, etc. for the surface treatment of austenitic stainless steel parts (e.g. 300 series, AISI 651, A286 or equivalent). This document applies to the removal of organic and inorganic contaminants, surface cleaning, surface finishing and surface passivation before the non-destructive test of austenitic stainless steel parts.
- Standard11 pagesEnglish languagesale 15% off
This document specifies requirements for producing and testing an undyed sulfuric acid anodic coating on aluminium alloys. The anodizing process is applied in the manufacture of aerospace products to improve paint adhesion and resistance to corrosion.
- Standard8 pagesEnglish languagesale 15% off
This document specifies the application method and quality assurance for aluminium pigmented coatings as per EN 4473 which may be applied to fasteners or other parts in titanium, titanium alloys, nickel or cobalt based alloys and corrosion resisting steels.
- Standard10 pagesEnglish languagee-Library read for1 day
This document specifies the performance requirements for aluminium pigmented organic coatings to be applied on titanium, titanium alloys, nickel or cobalt based alloys and corrosion resistant steels.
This specification does not cover electrical bonding and lightning strike applications of these coatings. Additional qualification tests will be agreed with the OEM upon qualification.
NOTE These coatings are not recommended for use on non-corrosion resistant steel fasteners.
- Standard18 pagesEnglish languagee-Library read for1 day
This document specifies the application method and quality assurance for aluminium pigmented coatings as per EN 4473 which may be applied to fasteners or other parts in titanium, titanium alloys, nickel or cobalt based alloys and corrosion resisting steels.
- Standard10 pagesEnglish languagee-Library read for1 day
This document specifies the performance requirements for aluminium pigmented organic coatings to be applied on titanium, titanium alloys, nickel or cobalt based alloys and corrosion resistant steels.
This specification does not cover electrical bonding and lightning strike applications of these coatings. Additional qualification tests will be agreed with the OEM upon qualification.
NOTE These coatings are not recommended for use on non-corrosion resistant steel fasteners.
- Standard18 pagesEnglish languagee-Library read for1 day
This document defines the requirements for hexavalent chromium free anodic electrodeposition of organic coatings on aluminium and aluminium alloys for corrosion protection of parts.
The purpose of this document is to give design, quality and manufacturing requirements. It does not give complete in-house process instructions; these are given in the processors detailed process instructions.
- Standard20 pagesEnglish languagee-Library read for1 day
This document defines the requirements for hexavalent chromium free anodic electrodeposition of organic coatings on aluminium and aluminium alloys for corrosion protection of parts.
The purpose of this document is to give design, quality and manufacturing requirements. It does not give complete in-house process instructions; these are given in the processors detailed process instructions.
- Standard20 pagesEnglish languagee-Library read for1 day
This document specifies methods of verifying adhesion of electrodeposited gold and gold alloy coatings on contacts.
- Standard4 pagesEnglish languagee-Library read for1 day
This document specifies the method for depositing cadmium layers according to the vacuum deposition process, for use in aerospace construction.
According to this process, cadmium metal is vaporized under vacuum and deposited directly on the base material with an interlayer. The coating produced in this way is ductile and electrically conductive.
This document is applicable whenever referenced.
- Standard15 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for hexavalent chromium free anodizing of aluminium and aluminium alloys for corrosion protection, bonding and painting.
This document does not apply to hard anodizing and plasma electrolytic anodizing (micro-arc oxidation).
The purpose of this document is to give design, quality and manufacturing requirements. It does not give complete in-house process instructions; these are given in the processor's detailed process instructions.
- Standard33 pagesEnglish languagee-Library read for1 day
SIGNIFICANCE AND USE
5.1 Hard anodic oxidation coatings are often used to obtain improved resistance to abrasion, and have been used in such applications as valves, sliding parts, hinge mechanisms, cams, gears, swivel joints, pistons, insulation plates, blast shields, etc.
5.2 This abrasion resistance test method may be useful for acceptance testing of a hard anodic coating, and it can be used to evaluate the effects of processing variables such as substrate preparation before coating, surface texture, coating technique variables, and post coating treatments.
5.3 Results may be used for process control, comparative ranking, or to correlate with end-use performance. The resistance of material surfaces to abrasion, as measured on a testing machine in the laboratory, is generally only one of several factors contributing to wear performance as experienced in the actual use of the material. Other factors may need to be considered in any calculation of predicted life from specific abrasion data.
5.4 The properties and characteristics of hard anodic oxidation coatings are significantly affected by both the alloy and the method of production.
Note 2: Hard anodizing will usually result in a dimensional increase on each surface equal to about 50 % of the coating thickness. Normal thickness for wear applications tends to be 40 µm to 60 µm; however the thickness of anodized coatings often ranges between 8 µm to 150 µm.
5.5 The resistance of hard anodic coatings to abrasion may be affected by factors including test conditions, type of abradant, pressure between the specimen and abradant, composition of the alloy, thickness of the coating, and the conditions of anodizing or sealing, or both.
Note 3: The resistance to abrasion is generally measured on unsealed anodic oxidation coatings. While corrosion resistance is often increased by sealing the coating, it has been observed that sealing or dyeing can reduce the resistance to abrasion by over 50 %.
5.6 The outer surface of the anod...
SCOPE
1.1 This test method quantifies the abrasion resistance of electrolytically formed hard anodic oxidation coatings on a plane, rigid surface of aluminum or aluminum alloy.
1.2 This test uses a Taber-type abraser,2 which generates a combination of rolling and rubbing to cause wear to the coating surface. Wear is quantified as cumulative mass loss or loss in mass per thousand cycles of abrasion.
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1: The procedure described in Method A is similar to MIL-PRF-8625 (paragraph 4.5.5) and SAE AMS 2469 (paragraph 3.3.4). The procedure described in Method B includes a break-in period of 1000 cycles and is similar to ISO 10074 Annex B. When no procedure is specified, Method A shall be the default procedure. Although the procedures described in this method may be similar, they are not equivalent to Specification B893 or Test Method D4060.
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.
- Standard8 pagesEnglish languagesale 15% off
This document specifies several chemical methods of passivation for corrosion resisting steels (austenitic, ferritic, martensitic and precipitation hardenable) and of decontamination for nickel or cobalt base alloys.
- Standard15 pagesEnglish languagee-Library read for1 day
SIGNIFICANCE AND USE
3.1 The tape lift provides a rapid and simple technique for removing particles from a surface and determining their number and size distribution.
3.2 By using statistically determined sample size and locations, an estimate of the surface cleanliness level of large areas can be made. The user shall define the sampling plan.
3.3 The sampling plan shall consider the importance of surface geometry and surface orientation to gas flow, gravity, obstructions, and previous history of hardware. These factors influence particle fallout and entrapment of particles on the surface. The geometry of joints, recessed areas, fasteners, and the correspondence of particle-count data to area can be maintained.
3.4 The selection of tape and the verification of its effect on the cleanliness of the hardware is very important. The tape adhesive should have sufficient cohesion to avoid transfer of the adhesive to the surface under test. The impact of adhesive transfer should be evaluated by laboratory testing before using the tape on the hardware. Since potential for adhesive transfer exists, cleaning to remove any adhesive might be required. In addition, the tape should have low outgassing characteristics, and as a minimum, it should meet the requirements of less than 1.0 % total mass loss (TML) and 0.1 % collected volatile condensable materials (CVCM), as measured by Test Method E595.
3.5 Care should be exercised in deciding which surfaces should be tested by this practice. The tape can remove marginally adhering paint and coatings. Optical surfaces should not be tested until verification has been made that the surface coating will not be damaged. The minimum effectiveness of particle removal from smooth surfaces and angles down to 90° for all practice methods is 90 % for particles larger than 5 μm. Rough surface finishes result in low removal efficiencies. Surface finishes up to approximately 3.20 μm (125 μin.) have been tested and found to give satisfactory results.
3.6 T...
SCOPE
1.1 This practice covers procedures for sampling surfaces to determine the presence of particulate contamination, 5 μm and larger. The practice consists of the application of a pressure-sensitive tape to the surface followed by the removal of particulate contamination with the removal of the tape. The tape with the adhering particles is then mounted on counting slides. Counting and measuring of particles is done by standard techniques.
1.2 This practice describes the materials and equipment required to perform sampling of surfaces for particle counting and sizing.
1.3 The criteria for acceptance or rejection of a part for conformance to surface cleanliness level requirements shall be determined by the user and are not included in this practice.
1.4 This practice is for use on surfaces that are not damaged by the application of adhesive tape. The use of this practice on any surface of any material not previously tested, or for which the susceptibility to damage is unknown, is not recommended. In general, metals, metal plating, and oxide coatings will not be damaged. Application to painted, vapor deposited, and optical coatings should be evaluated before implementing this test.
1.5 This practice provides three methods to evaluate tape lift tests, as follows:
Practice
Sections
A—This method uses light transmitted through the tape and tape adhesive to detect particles that adhere to it.
4 to 6
B—This method uses light transmitted through the tape adhesive after bonding to a base microscope slide, dissolving the tape backing, and a cover slide. The particles are embedded in the adhesive, and air bubbles are eliminated with acrylic mounting media.
7 to 9
C—This method uses light reflected off the tape adhesive to detect particles that adhere to it.
10 to 12
1.6 Units—The values stated in SI units are to be regarded as standard. The values given in parenthes...
- Standard5 pagesEnglish languagesale 15% off
- Standard5 pagesEnglish languagesale 15% off
SIGNIFICANCE AND USE
3.1 The data generated by this test method shall be used to determine whether low embrittling zinc-nickel plated parts are liable to be corroded or damaged by application of the test material during routine maintenance operations.
SCOPE
1.1 This test method is intended as a means of determining the corrosive effects of aircraft maintenance chemicals on low-embrittling zinc-nickel plating used on aircraft high-strength steel, under conditions of total immersion by quantitative measurements of weight change. Aircraft maintenance chemicals requiring this test method shall be determined by the cognizant engineering authority.
1.2 This standard may involve hazardous materials, operations, and equipment. 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 hazard statements, see Section 6 and 4.1.
1.3 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.
- Standard2 pagesEnglish languagesale 15% off
This document defines the requirements for a two-components, high corrosion inhibiting epoxy primer.
The coating shall be suitable for use on suitably prepared metallic substrates, chromic acid anodised, or conversion coated aluminium alloys and other suitably prepared substrates.
- Standard18 pagesEnglish languagee-Library read for1 day
This document defines the requirements for a two-components, chromate and lead-free primer.
The coating shall be suitable for use on fibre reinforced composite materials, titanium and corrosion resistant steels and other suitably prepared corrosion resistant substrates.
- Standard17 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for a two-components flexible polyurethane topcoat to be applied over EN 4687 and/or EN 4688 primers mainly for exterior aerospace applications.
The primer and the finish tested to this document will be from the same manufacturer applied in accordance with (i.a.w.) their instructions/Table 1.
- Standard20 pagesEnglish languagee-Library read for1 day
This document specifies the electrolytic cadmium plating of parts and fasteners in steel of tensile strength Rm (max.) 1 450 MPa, copper, copper alloys and nickel alloys, whose temperature in service does not exceed 235 °C.
- Standard20 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for producing and testing an unsealed anodic coating on titanium and titanium alloys. The anodic coating is produced by the sulfuric acid process. The coating is used with solid film lubricants for protection of titanium fasteners against galling, for limited protection of less noble metals against galvanic corrosion when in contact with titanium or for other approved uses.
- Standard3 pagesEnglish languagesale 15% off
- Standard3 pagesFrench languagesale 15% off
This document specifies the requirements for producing and testing a general purpose chemical conversion coating on aluminium alloys. The chemical conversion coating is used in the manufacture of aerospace products in order to improve paint adhesion and resistance to corrosion. This process can also be used for touch-up of anodic coatings.
- Standard6 pagesEnglish languagesale 15% off
- Standard6 pagesFrench languagesale 15% off
SIGNIFICANCE AND USE
5.1 All materials on exterior aircraft surfaces are subject to abrasion from airborne particles of various sizes and shapes. Transparent materials are particularly vulnerable to abrasion, since their performance is based on their ability to transmit light with a minimal amount of scatter. Scratches, pitting, and coating removal and delamination as a result of abrasion may increase scatter, reduce transmission, and degrade the performance of transparent materials. Visually transparent materials are required for pilot and air crew enclosures, such as canopies, windshields, and viewpoints. Materials transparent in the IR region (8 to 12 μm) are required for tracking, targeting, and navigational instrumentation.
5.2 This test method is intended to provide a calibrated and repeatable means of determining the relative abrasion resistance of materials and coatings for optical and IR transparent materials and coatings. The test parameters for this test method can be directly related to dust cloud densities and velocities to which transparent materials are exposed in the field.
SCOPE
1.1 This test method covers the resistance of transparent plastics and coatings used in aerospace windscreens, canopies, and viewports to surface erosion as a result of dust impingement. This test method simulates flight through a defined particle cloud environment by means of independent control of particle size, velocity, impact angle, mass loading, and test duration.
1.2 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.
1.3 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.
- Standard9 pagesEnglish languagesale 15% off
- Standard9 pagesEnglish languagesale 15% off
This document defines the requirements for a two-components, high corrosion inhibiting epoxy primer.
The coating shall be suitable for use on suitably prepared metallic substrates, chromic acid anodised, or conversion coated aluminium alloys and other suitably prepared substrates.
- Standard18 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for a two-components flexible polyurethane topcoat to be applied over EN 4687 and/or EN 4688 primers mainly for exterior aerospace applications.
The primer and the finish tested to this document will be from the same manufacturer applied in accordance with (i.a.w.) their instructions/Table 1.
- Standard20 pagesEnglish languagee-Library read for1 day
This document defines the requirements for a two-components, chromate and lead-free primer.
The coating shall be suitable for use on fibre reinforced composite materials, titanium and corrosion resistant steels and other suitably prepared corrosion resistant substrates.
- Standard17 pagesEnglish languagee-Library read for1 day
This document specifies the electrolytic cadmium plating of parts and fasteners in steel of tensile strength Rm (max.) 1 450 MPa, copper, copper alloys and nickel alloys, whose temperature in service does not exceed 235 °C.
- Standard20 pagesEnglish languagee-Library read for1 day
SIGNIFICANCE AND USE
4.1 This practice determines the procedure to be used to ensure the long-term storage stability of aircraft cleaning and maintenance products in order to ensure their ability to meet the shelf-life requirements called up in specifications or contract documents. The subsequent testing requirements are detailed in the specification or contract.
SCOPE
1.1 This practice covers the determination of the stability in storage of liquid enzyme-based, terpene-based, and solvent-based chemical cleaning compounds used to clean the exterior surfaces of aircraft.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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.
- Standard2 pagesEnglish languagesale 15% off
This standard specifies requirements for the durability testing of coatings most commonly used for space applications, i.e.:
- Thin film optical coatings
- Thermo-optical and thermal control coatings (the majority are paints, metallic deposits and coatings for stray light reduction)
- Metallic coatings for other applications (RF, electrical, corrosion protection)
This standard covers testing for both ground and in-orbit phases of a space mission, mainly for satellite applications.
This standard applies to coatings within off the shelf items
This standard specifies the types of test to be performed for each class of coating, covering the different phases of a space project (evaluation, qualification and acceptance)
This standard does not cover:
- The particular qualification requirements for a specific mission
- Specific applications of coatings for launchers (e.g. high temperature coatings)
- Specific functional testing requirements for the different coating classes
- Test requirements for long term storage
- Solar cell cover glass coatings
- Surface treatments and conformal coatings applied on EEE parts
- Standard43 pagesEnglish languagee-Library read for1 day
This document describes the electrical contact resistance testing method applicable to conductive and non-conductive coatings applied on test specimens made of conductive materials (unless otherwise specified) for aerospace applications. An objective of this practice is to define and control many of the known variables in such a way that valid comparisons of the contact properties of materials can be made.
This test may be locally destructive depending on the process tested.
- Standard9 pagesEnglish languagee-Library read for1 day
This standard specifies requirements for the durability testing of coatings most commonly used for space applications, i.e.:
- Thin film optical coatings
- Thermo-optical and thermal control coatings (the majority are paints, metallic deposits and coatings for stray light reduction)
- Metallic coatings for other applications (RF, electrical, corrosion protection)
This standard covers testing for both ground and in-orbit phases of a space mission, mainly for satellite applications.
This standard applies to coatings within off the shelf items
This standard specifies the types of test to be performed for each class of coating, covering the different phases of a space project (evaluation, qualification and acceptance)
This standard does not cover:
- The particular qualification requirements for a specific mission
- Specific applications of coatings for launchers (e.g. high temperature coatings)
- Specific functional testing requirements for the different coating classes
- Test requirements for long term storage
- Solar cell cover glass coatings
- Surface treatments and conformal coatings applied on EEE parts
- Standard43 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for an intermediate coat to be applied over a primer for aerospace applications and with a topcoat for aerospace applications on top.
The properties specified in this document are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 and EN ISO 3270 and painted with primer listed in Table 1. Topcoat listed in Table 1 is to be applied on intermediate coat to this document. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions, etc.) should be determined by supplementary tests to confirm that the requirements of this document are met.
- Standard17 pagesEnglish languagee-Library read for1 day
This document specifies the method of test for evaluating the tendency of paints and varnishes towards sedimentation of their pigments.
The procedure describes a method where the pigmented paint is allowed to settle at a specified temperature and for a specified time.
The procedure is not applicable to products which possess a pot life inferior to the specified measuring time.
- Standard5 pagesEnglish languagee-Library read for1 day
This document defines the nature of and the surface preparation method for test pieces in aluminium alloys intended for testing paints and varnishes used for aerospace applications.
- Standard10 pagesEnglish languagee-Library read for1 day
This document describes the electrical contact resistance testing method applicable to conductive and non-conductive coatings applied on test specimens made of conductive materials (unless otherwise specified) for aerospace applications. An objective of this practice is to define and control many of the known variables in such a way that valid comparisons of the contact properties of materials can be made.
This test may be locally destructive depending on the process tested.
- Standard9 pagesEnglish languagee-Library read for1 day
This document specifies the requirements for an intermediate coat to be applied over a primer for aerospace applications and with a topcoat for aerospace applications on top.
The properties specified in this document are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 and EN ISO 3270 and painted with primer listed in Table 1. Topcoat listed in Table 1 is to be applied on intermediate coat to this document. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions, etc.) should be determined by supplementary tests to confirm that the requirements of this document are met.
- Standard17 pagesEnglish languagee-Library read for1 day
This document specifies the method of test for evaluating the tendency of paints and varnishes towards sedimentation of their pigments.
The procedure describes a method where the pigmented paint is allowed to settle at a specified temperature and for a specified time.
The procedure is not applicable to products which possess a pot life inferior to the specified measuring time.
- Standard5 pagesEnglish languagee-Library read for1 day
This document defines the nature of and the surface preparation method for test pieces in aluminium alloys intended for testing paints and varnishes used for aerospace applications.
- Standard10 pagesEnglish languagee-Library read for1 day
The purpose of the proposed Standard is to summarise the (general) corrosion protection requirements applicable to the materials, surface treatments, finishing and manufacturing processes used for space flight hardware.
It contains the minimum requirements necessary to guarantee and verify the suitability of materials, coatings systems and processes for corrosion control of space rated products.
The Standard classifies the corrosion environments and requires the issuing of a Corrosion Prevention and Control Plan based on the identified environmental classes. Testing and acceptance criteria are specified for each environmental class.
The scope of the document would include all flight parts and components used for space missions including Ground Support Equipment (GSE), where the materials and processes used in interfacing ground support equipment, test equipment, hardware processing equipment, hardware packaging and hardware shipment are to be controlled in order to prevent damage to or contamination of flight hardware.
- Standard34 pagesEnglish languagee-Library read for1 day
ABSTRACT
This test method covers determination of the effects of cleaning solutions and chemical maintenance materials on painted aircraft surfaces. Materials used for testing shall be drawing pencils, fine sand paper, abrasive mats, acetone, MIL-PRF-85285 coating, MIL-PRF-23377 primer coating, chemical conversion materials, and distilled or deionized water. Plate and sheet specimens of aluminum alloy shall be examined under concentrated and diluted test solutions. Pencils preparation, panels preparations, testing, and hardness determination shall be done according to the indicated procedure.
SCOPE
1.1 This test method covers determination of the effects of cleaning solutions and liquid cleaner concentrates on painted aircraft surfaces (Note 1). Streaking, discoloration, and blistering may be determined visually. Softening is determined with a series of specially prepared pencils wherein determination of the softest pencil to rupture the paint film is made.
Note 1: This test method is applicable to any paint film that is exposed to cleaning materials. MIL-PRF-85285 has been selected as a basic example. When other paint finishes are used, refer to the applicable material specification for panel preparation and system curing prior to testing.
1.2 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.
1.3 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.
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.
- Standard3 pagesEnglish languagesale 15% off
SIGNIFICANCE AND USE
4.1 This test method determines the procedure to be used to ensure the long term storage stability of aircraft cleaning and maintenance products, in order to ensure their ability to meet the shelf-life requirements called up in specifications or contract documents. The subsequent testing requirements are detailed in the specification or contract.
SCOPE
1.1 This test method covers the determination of the stability in storage, of liquid, water-base chemical cleaning compounds, used to clean the exterior surfaces of aircraft.
1.2 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.
1.3 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.
- Standard2 pagesEnglish languagesale 15% off
SIGNIFICANCE AND USE
3.1 This practice is used to ensure that candidate aircraft surface cleaners do not leave a residue which, on drying, would leave a permanent stain requiring polishing to remove.
SCOPE
1.1 This practice describes the procedure used to determine the effect of cleaners on unpainted aircraft surfaces. Visual observation is used for determining streaking or permanent stains which require polishing to remove.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information.
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.
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.
- Standard2 pagesEnglish languagesale 15% off
The purpose of the proposed Standard is to summarise the (general) corrosion protection requirements applicable to the materials, surface treatments, finishing and manufacturing processes used for space flight hardware.
It contains the minimum requirements necessary to guarantee and verify the suitability of materials, coatings systems and processes for corrosion control of space rated products.
The Standard classifies the corrosion environments and requires the issuing of a Corrosion Prevention and Control Plan based on the identified environmental classes. Testing and acceptance criteria are specified for each environmental class.
The scope of the document would include all flight parts and components used for space missions including Ground Support Equipment (GSE), where the materials and processes used in interfacing ground support equipment, test equipment, hardware processing equipment, hardware packaging and hardware shipment are to be controlled in order to prevent damage to or contamination of flight hardware.
- Standard34 pagesEnglish languagee-Library read for1 day
ABSTRACT
This specification covers the passivation by electropolishing of stainless steel alloys in the 200, 300, and 400 series, as well as precipitation-hardened alloys. Basis materials shall be free of clearly visible defects, and if necessary, shall undergo preparatory cleaning procedures prior to electropolishing. Post-coating procedures such as post dip and final rinsing shall be performed as well. The performance of the specimens during passivation shall be evaluated by one or more of the following procedures: water immersion test; humidity test; salt spray test; copper sulfate test; and modified ferroxyl test for free iron.
SCOPE
1.1 This specification covers the passivation of stainless steel alloys in the 200 (UNS2XXXX), 300 (UNS3XXXX), and 400 (UNS4XXXX) series, and the precipitation-hardened alloys, using electropolishing procedures.
Note 1: Surface passivation occurs simultaneously with electropolishing under proper operating conditions. The quality of passivation will depend on the type of stainless steel, the formulation of the electropolishing solution, and the conditions of operation. Free iron on the surface of the stainless steel is removed resulting in improved corrosion resistance. Surface smoothing obtained by electropolishing will also improve corrosion resistance. Electropolishing will also remove heat tint and oxide scale.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This specification may involve hazardous materials, operations, and equipment. This specification 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.
1.4 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.
- Technical specification4 pagesEnglish languagesale 15% off
This Standard details a test in which pressure‐sensitive tapes are used to assess
the suitability of, for example, coatings, paints, films and other thin materials,
proposed for use on spacecraft and associated equipment.
Surface coatings, such as thermal control paints and corrosion protection
coatings, are affected, both on the ground and after launch, by exposure to the
environment.
It is therefore important that the adhesion of the coating to the relevant
substrate remains at an acceptable level after exposure to the relevant
environmental condition.
The following materials and assemblies are covered by this test method:
organic coating, e.g. varnishes, paints and plastic films;
metallic finishes on, for example, printed circuit boards, second‐surface
mirrors, thermal radiators, plastic films;
adhesive layers;
composite thin films;
small assemblies, e.g. solar cells having attached glass covers.
This standard may be tailored for the specific characteristics and constrains of a
space project in conformance with ECSS‐S‐ST‐00.
- Standard23 pagesEnglish languagee-Library read for1 day
This European Standard specifies the plating of a Zinc-Nickel (12 % to 16 %) alloy on mechanical parts and fasteners in steels (Rm ≤ 1 450 MPa), stainless steels (Rm ≤ 1 450 MPa), copper alloys, nickel alloys and aluminium alloys (not applicable for electrical components), as well as the passivation and lubricant finishing that can be associated to them. The Zinc-Nickel process is an electrolytic plating process under controlled current allowing to deposit a Zinc-Nickel layer from, most often, an alkaline electrolyte. Alkaline Zinc-Nickel is only considered in this standard.
The purpose of this standard is to give technical and quality requirements of Zinc-Nickel plating. It doesn’t give complete in-house process instructions, these shall be given in the manufacturers detailed process instructions.
- Standard14 pagesEnglish languagee-Library read for1 day
This Standard details a test in which pressure‐sensitive tapes are used to assess
the suitability of, for example, coatings, paints, films and other thin materials,
proposed for use on spacecraft and associated equipment.
Surface coatings, such as thermal control paints and corrosion protection
coatings, are affected, both on the ground and after launch, by exposure to the
environment.
It is therefore important that the adhesion of the coating to the relevant
substrate remains at an acceptable level after exposure to the relevant
environmental condition.
The following materials and assemblies are covered by this test method:
organic coating, e.g. varnishes, paints and plastic films;
metallic finishes on, for example, printed circuit boards, second‐surface
mirrors, thermal radiators, plastic films;
adhesive layers;
composite thin films;
small assemblies, e.g. solar cells having attached glass covers.
This standard may be tailored for the specific characteristics and constrains of a
space project in conformance with ECSS‐S‐ST‐00.
- Standard23 pagesEnglish languagee-Library read for1 day