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EN 2284:1991

Current

Current

The latest, up-to-date edition.

Aerospace series - Sulphuric acid anodizing of aluminium and wrought aluminium alloys

Published date

17-07-1991

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Foreword
1 Scope and field of application
2 Purpose of anodizing
3 References
4 Material categories
5 Supporting jig
6 Processing sequence
7 Quality assurance
8 Designation

This standard specifies the required characteristics for the performance of sulphyric acid anodizing with or without sealing as well as quality assurance of the coating obtained. It applies to parts in aluminium and wrought aluminium alloys of category 1 and 2 (see clause 4) used in aerospace construction when reference is made to this standard.

Committee
ASD-STAN
DevelopmentNote
Supersedes PREN 2284. (11/2003)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

Standards Relationship
NF EN 2284 : 1992 Identical
DIN EN 2284:1991-08 Identical
NS EN 2284 : 1ED 1991 Identical
BS EN 2284:1991 Identical
NBN EN 2284 : 1992 Identical
NBN EN 2912 : 1996 Identical
UNI EN 2284 : 1992 Identical
I.S. EN 2284:1992 Identical
NEN EN 2284 : 1992 Identical
PN EN 2284 : 1997 Identical
UNE-EN 2284:1993 Identical
SNV DIN EN 2284 : 1991 Identical

14/30314143 DC : 0 BS EN 2285 - AEROSPACE SERIES - BUSHES, PLAIN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER - DIMENSIONS AND LOADS
06/30151472 DC : 0 BS EN 4534-2 - AEROSPACE SERIES - BUSHES, PLAIN IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
BS EN 4811:2017 Aerospace series. Flange couplings. Gasket seal with fluorocarbon seal on aluminium plate with 4 fastening holes. Inch series
PREN 2285 : 200P2 AEROSPACE SERIES - BUSHES, PLAIN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER - DIMENSIONS AND LOADS
NF EN 4660-004 : 2011 AEROSPACE SERIES - MODULAR AND OPEN AVIONICS ARCHITECTURES - PART 004: PACKAGING
PREN 4811 : DRAFT 2015 AEROSPACE SERIES - FLANGE COUPLINGS - GASKET SEAL WITH FLUOROCARBON SEAL ON ALUMINIUM PLATE WITH 4 FASTENING HOLES - INCH SERIES
PREN 2876 : 200P1 AEROSPACE SERIES - NUTS, HEXAGON, PLAIN, REDUCED HEIGHT, NORMAL ACROSS FLATS, IN ALUMINIUM ALLOY, ANODIZED - CLASSIFICATION: 450 MPA (AT AMBIENT TEMPERATURE)/120 DEGREES C
PREN 3392 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, UNIVERSAL HEAD, IN ALUMINIUM ALLOY 2117, ANODIZED OR CHROMATED, METRIC SERIES
PREN 3402 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREE NORMAL COUNTERSUNK HEAD, IN ALUMINIUM ALLOY 7050, ANODIZED OR CHROMATED, METRIC SERIES
PREN 3412 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREE NORMAL COUNTERSUNK HEAD WITH DOME, IN ALUMINIUM ALLOY 5056A, ANODIZED OR CHROMATED, METRIC SERIES
PREN 2556 : 2 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES COUNTERSUNK NORMAL HEAD, WITH DOME, IN ALUMINIUM ALLOY 5056A, ANODIZED OR CHROMATED INCH BASED SERIES
PREN 4534-2 : 200P2 AEROSPACE SERIES - BUSHES, PLAIN IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
PREN 4153 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, UNIVERSAL HEAD, IN ALUMINIUM ALLOY 2219, ANODIZED OR CHROMATED, METRIC SERIES
PREN 3902 : 200P1 AEROSPACE SERIES - WASHERS FOR RIVET ASSEMBLIES, IN ALUMINIUM ALLOY, ANODIZED, METRIC SERIES
PREN 4827 : DRAFT 2015 AEROSPACE SERIES - HEXAVALENT CHROMIUM FREE ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS
PREN 3904 : 200P1 AEROSPACE SERIES - WASHERS, WIRE LOCKING, IN ALUMINIUM ALLOY, ANODIZED
PREN 4360 : 200P3 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES COUNTERSUNK REDUCED HEAT WITH DOME, IN ALUMINIUM ALLOY 7050, ANODIZED OR CHROMATED, METRIC SERIES
I.S. EN 3904:2017 AEROSPACE SERIES - WASHERS, WIRE LOCKING IN ALUMINIUM ALLOY, ANODIZED
DIN EN 2149:1996-05 AEROSPACE SERIES - RIVETS, SOLID, UNIVERSAL HEAD, IN ALUMINIUM ALLOY 5056A, ANODISED OR CHROMATED, INCH BASED SERIES
BS EN 2285:2017 Aerospace series. Bushes, plain, aluminium alloy, with self-lubricating liner. Dimensions and loads
BS EN 2552:1993 Rivets, solid, 100° normal countersunk head with dome, in aluminium alloy 2117, anodized or chromated, inch based series
BS EN 4535-2:2009 Aerospace series. Bushes, flanged in aluminium alloy with self-lubricating liner, elevated load Dimensions and loads. Inch series
PREN 2286 : 200P2 AEROSPACE SERIES - BUSHES, FLANGED ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER - DIMENSIONS AND LOADS
PREN 3369 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, UNIVERSAL HEAD, IN ALUMINIUM ALLOY 7050, ANODIZED OR CHROMATED, INCH BASED SERIES
PREN 3398 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, UNIVERSAL HEAD, IN ALUMINIUM ALLOY 7050, ANODIZED OR CHROMATED, METRIC SERIES
PREN 3404 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, UNIVERSAL HEAD, IN ALUMINIUM ALLOY 5056A, ANODIZED OR CHROMATED, METRIC SERIES
I.S. EN 4809:2017 AEROSPACE SERIES - FLANGE COUPLINGS - GASKET SEAL WITH FLUOROCARBON SEAL ON ALUMINIUM PLATE WITH 3 FASTENING HOLES - INCH SERIES
I.S. EN 4827:2017 AEROSPACE SERIES - HEXAVALENT CHROMIUM FREE ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS
I.S. EN 4660-004:2011 AEROSPACE SERIES - MODULAR AND OPEN AVIONICS ARCHITECTURES - PART 004: PACKAGING
DIN EN 2552:1993-03 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES NORMAL COUNTERSUNK HEAD WITH DOME, IN ALUMINIUM ALLOY 2117, ANODIZED OR CHROMATED, INCH BASED SERIES
DIN EN 2122:1996-03 AEROSPACE SERIES - WASHERS, FLAT, IN ALUMINIUM ALLOY, ANODIZED OR CHROMATED
17/30364786 DC : 0 BS EN 4827 - AEROSPACE SERIES - HEXAVALENT CHROMIUM FREE ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS
I.S. EN 3902:2016 AEROSPACE SERIES - WASHERS FOR RIVET ASSEMBLIES, IN ALUMINIUM ALLOY, ANODIZED, METRIC SERIES
BS EN 4534-2:2009 Aerospace series. Bushes, plain in aluminium alloy with self-lubricating liner, elevated load Dimensions and loads. Inch series
PREN 3407 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREE NORMAL COUNTERSUNK HEAD, IN ALUMINIUM ALLOY 2117, ANODIZED OR CHROMATED, METRIC SERIES
PREN 3370 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES NORMAL COUNTERSUNK HEAD WITH DOME, IN ALUMINIUM ALLOY 7050, ANODIZED OR CHROMATED, INCH BASED SERIES
PREN 3405 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREE NORMAL COUNTERSUNK HEAD WITH DOME, IN ALUMINIUM ALLOY 7050, ANODIZED OR CHROMATED, METRIC SERIES
PREN 3406 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREE NORMAL COUNTERSUNK HEAD WITH DOME, IN ALUMINIUM ALLOY 2117, ANODIZED OR CHROMATED, METRIC SERIES
BS EN 4827:2017 Aerospace series. Hexavalent chromium free anodizing of aluminium and aluminium alloys
BS EN 4660-004:2011 Aerospace series. Modular and open avionics architectures Packaging
14/30314144 DC : 0 BS EN 2286 - AEROSPACE SERIES - BUSHES, FLANGED ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER - DIMENSIONS AND LOADS
06/30151475 DC : 0 BS EN 4535-2 - AEROSPACE SERIES - BUSHES, FLANGED IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
ISO 9738:2000 Aerospace — Turnbarrels, for aircraft control wire rope — Dimensions and loads
NFL 21-271 : B 2000 FASTENERS - LOCKBOLTS, PROTRUDING HEAD, WITH CLOSE TOLERANCE AND TITANIUM ALLOY T-A6V SHANK AND WITH COLLAR IN ALUMINIUM ALLOY 2024
BS ISO 9738:2000 Turnbarrels, for aircraft control wire rope. Dimensions and loads
PREN 4809 : DRAFT 2015 AEROSPACE SERIES - FLANGE COUPLINGS - GASKET SEAL WITH FLUOROCARBON SEAL ON ALUMINIUM PLATE WITH 3 FASTENING HOLES - INCH SERIES
PREN 3400 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREE NORMAL COUNTERSUNK HEAD, IN ALUMINIUM ALLOY 5056A, ANODIZED OR CHROMATED, METRIC SERIES
PREN 4174 : 200P1 AEROSPACE SERIES - COLLARS, SWAGE LOCKING, SHEARTYPE, IN ALUMINIUM ALLOY 2024, ANODIZED OR CHROMATED, METRIC SERIES
I.S. EN 4811:2017 AEROSPACE SERIES - FLANGE COUPLINGS - GASKET SEAL WITH FLUOROCARBON SEAL ON ALUMINIUM PLATE WITH 4 FASTENING HOLES - INCH SERIES
I.S. EN 4534-2:2016 AEROSPACE SERIES - BUSHES, PLAIN IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
BS EN 3904:2017 Aerospace series. Washers, wire locking in aluminium alloy, anodized
BS EN 2556:1993 Rivets, solid, 100° normal countersunk head with dome, in aluminium alloy 5056A, anodized or chromated, inch based series
BS EN 2912:1996 Washers, flat, large diameter, in aluminium alloy, anodized or chromated
BS EN 2536:1995 Hard anodizing of aluminium alloys
BS EN 2122:1996 Washers, flat, in aluminium alloy, anodized or chromated
EN 4827:2017 Aerospace series - Hexavalent chromium free anodizing of aluminium and aluminium alloys
EN 4534-2:2016 Aerospace series - Bushes, plain in aluminium alloy with self-lubricating liner, elevated load - Part 2: Dimensions and loads - Inch series
EN 2536:1995 Aerospace series - Hard anodizing of aluminium alloys
EN 2285:2017 Aerospace series - Bushes, plain, aluminium alloy, with self-lubricating liner - Dimensions and loads
EN 2149:1996 Aerospace series - Rivets, solid, universal head, in aluminium alloy 5056A, anodized or chromated, inch based series
EN 4811:2017 Aerospace series - Flange couplings - Gasket seal with fluorocarbon seal on aluminium plate with 4 fastening holes - Inch series
EN 3902:2016 Aerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series
EN 2145:1994 Aerospace series - Rivets, solid, universal head, in aluminium alloy 2117, anodized or chromated, inch based series
EN 4535-2:2016 Aerospace series - Bushes, flanged in aluminium alloy with self-lubricating liner, elevated load - Part 2: Dimensions and loads - Inch series
EN 2286:2017 Aerospace series - Bushes, flanged aluminium alloy, with self-lubricating liner - Dimensions and loads
EN 2556:1992 Aerospace series - Rivets, solid, 100° normal countersunk head with dome, in aluminium alloy 5056A, anodized or chromated, inch based series
EN 2912:1996 Aerospace series - Washers, flat, large diameter, in aluminium alloy, anodized or chromated
EN 4660-004:2011 Aerospace series - Modular and Open Avionics Architectures - Part 004: Packaging
EN 4809:2017 Aerospace series - Flange couplings - Gasket seal with fluorocarbon seal on aluminium plate with 3 fastening holes - Inch series
EN 4174:2006 Aerospace series - Collars, swage locking, sheartype, in aluminium alloy 2024, anodized or chromated, metric series
EN 2552:1992 Aerospace series - Rivets, solid, 100° normal countersunk head with dome, in aluminium alloy 2117, anodized or chromated, inch based series
EN 2122:1996 Aerospace series - Washers, flat, in aluminium alloy, anodized or chromated
14/30314147 DC : 0 BS EN 4534-2 - AEROSPACE SERIES - BUSHES, PLAIN IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
EN 3904:2017 Aerospace series - Washers, wire locking in aluminium alloy, anodized
15/30327754 DC : 0 BS EN 4660-004 - AEROSPACE SERIES - MODULAR AND OPEN AVIONICS ARCHITECTURES - PART 004: PACKAGING
14/30314150 DC : 0 BS EN 4535-2 - AEROSPACE SERIES - BUSHES, FLANGED IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
10/30215608 DC : 0 BS EN 4704 - AEROSPACE SERIES - TARTARIC-SULPHURIC-ACID ANODISING OF ALUMINIUM AND ALUMINIUM WROUGHT ALLOYS FOR CORROSION PROTECTION AND PAINT PRE-TREATMENT (TSA)
17/30364788 DC : 0 BS EN 3837 - AEROSPACE SERIES - PAINTS AND VARNISHES - NATURE AND METHOD FOR SURFACE PREPARATION OF TEST PIECES IN ALUMINIUM ALLOYS
BS EN 4809:2017 Aerospace series. Flange couplings. Gasket seal with fluorocarbon seal on aluminium plate with 3 fastening holes. Inch series
BS EN 3902:2016 Aerospace series. Washers for rivet assemblies, in aluminium alloy, anodized, metric series
I.S. EN 4535-2:2016 AEROSPACE SERIES - BUSHES, FLANGED IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
PREN 2552 : 3 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES COUNTERSUNK NORMAL HEAD, WITH DOME, IN ALUMINIUM ALLOY 2117, ANODIZED OR CHROMATED, INCH BASED SERIES
PREN 4155 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES COUNTERSUNK NORMAL HEAD WITH DOME, IN ALUMINIUM ALLOY 2219, ANODIZED OR CHROMATED, METRIC SERIES
PREN 4361 : 200P3 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES COUNTERSUNK REDUCED HEAD WITH DOME, IN ALUMINIUM ALLOY 5056A, ANODIZED OR CHROMATED, METRIC SERIES
PREN 4154 : 200P1 AEROSPACE SERIES - RIVETS, SOLID, 100 DEGREES COUNTERSUNK NORMAL HEAD, IN ALUMINIUM ALLOY 2219, ANODIZED OR CHROMATED, METRIC SERIES
PREN 4535-2 : 200P2 AEROSPACE SERIES - BUSHES, FLANGED IN ALUMINIUM ALLOY WITH SELF-LUBRICATING LINER, ELEVATED LOAD - PART 2: DIMENSIONS AND LOADS - INCH SERIES
PREN 3837 : 200P1 AEROSPACE SERIES - PAINTS AND VARNISHES - NATURE AND METHOD FOR SURFACE PREPARATION OF TEST PIECES IN ALUMINIUM ALLOYS
BS EN 4174:2006 Aerospace series. Collars, swage locking, sheartype, in aluminium alloy 2024, anodized or chromated, metric series
BS EN 2286:1990 Specification for bushes flanged, aluminium alloy with self-lubricating liner. Dimensions and loads
BS EN 13101:2002 Steps for underground man entry chambers. Requirements, marking, testing and evaluation of conformity
EN 13101:2002 Steps for underground man entry chambers - Requirements, marking, testing and evaluation of conformity

EN 2334:1997 Aerospace series - Chromic-sulphuric acid pickle of aluminium and aluminium alloys
ISO 2106:2011 Anodizing of aluminium and its alloys Determination of mass per unit area (surface density) of anodic oxidation coatings Gravimetric method
BS 6161-5:1982 Methods of test for anodic oxidation coatings on aluminium and its alloys Estimation of loss of absorptive power of sealed coatings: dye spot test with prior acid treatment
ISO 2376:2010 Anodizing of aluminium and its alloys Determination of electric breakdown potential
ISO 1463:2003 Metallic and oxide coatings Measurement of coating thickness Microscopical method
BS 6161-1:1984 Methods of test for anodic oxidation coatings on aluminium and its alloys Determination of mass per unit area (surface density) of anodic oxidation coatings (gravimetric method)
ISO 2143:2017 Anodizing of aluminium and its alloys — Estimation of loss of absorptive power of anodic oxidation coatings after sealing — Dye-spot test with prior acid treatment
EN 2101:1991 Aerospace series - Chromic acid anodizing of aluminium and wrought aluminium alloys
BS 5466-1:1977 Methods for corrosion testing of metallic coatings Neutral salt spray test (NSS test)
ISO 2085:2010 Anodizing of aluminium and its alloys Check for continuity of thin anodic oxidation coatings Copper sulfate test
ISO 3768:1976 Metallic coatings — Neutral salt spray test (NSS test)

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