DEFSTAN 03-25/5(2008) : 2008

Name: DEFSTAN 03-25/5(2008) : 2008
Brand: DEFSTAN
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SULFURIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS

Available format(s)

Hardcopy , PDF

Withdrawn date

21-05-2015

Language(s)

English

Published date

01-01-2008

Publisher

UK Ministry of Defence Standards

Foreword
0 Introduction
1 Scope
2 Warning
3 Normative References
4 Definitions
  4.2 Batch
  4.3 Process Control Schedule
  4.4 Purified water
  4.5 Significant Surface
5 Information to be Supplied to the Processor
6 Process Control
7 Applications and Limitations
  7.1 Applications
  7.2 Compatibility with explosives, propellants and
       pyrotechnics
  7.3 Limitations
8 Process Requirements
  8.1 Surface preparation
  8.2 Anodizing
       8.2.1 Process
       8.2.2 Coating thickness
  8.3 Washing
  8.4 Dyeing
  8.5 Sealing
  8.6 Drying
  8.7 Re-anodizing
9 Inspection and Test
  9.1 Processing
  9.2 Frequency of testing
  9.3 Appearance
  9.4 Thickness of coating
  9.5 Dyed coatings
       9.5.1 Resistance to leaching
       9.5.2 Fastness to light
  9.6 Sealing assessment
  9.7 Electrical insulation
  9.8 Abrasion resistance
  9.9 Reflectivity
  9.10 Corrosion test
Annex A - Sulfuric Acid Anodizing Process for Aluminium and
          Aluminium Alloys
  A.1 Electrolyte
  A.2 Cathode
  A.3 Suspension or Jigging
  A.4 Anodizing Procedure
Annex B - Analysis of Sulfuric Acid Electrolyte
  B.1 Analysis of Sulfuric Acid Electrolyte
  B.2 Analysis for Free Sulfuric Acid
       B.2.1 Reagents
       B.2.2 Procedure
       B.2.3 Calculation
  B.3 Analysis for Aluminium
       B.3.1 Reagents
       B.3.2 Procedure
       B.3.3 Calculation
  B.4 Analysis for Chloride
       B.4.1 Reagents
       B.4.2 Procedure
       B.4.3 Calculation
Annex C - Stripping Solutions for the Removal of Anodic
          Coatings
  C.1 Preferred Solution
  C.2 Alternative Solutions

Specifies the properties of sulphuric acid anodizing of aluminium and aluminium alloys.

DevelopmentNote	Supersedes DEFSTAN 03-25/4(2003). (04/2008) This standard is obsolescent because it is no longer required for the procurement of new equipment but is retained for maintenance purposes in support of existing in-service equipment. (05/2013)
DocumentType	Standard
Pages	18
PublisherName	UK Ministry of Defence Standards
Status	Withdrawn
SupersededBy	SAE AMS 03-25 : 2015
Supersedes	DEFSTAN 03-25/4(2003) : 2003

DEFSTAN 21-5/4(2016) : 2016	CODE OF PRACTICE FOR PROTECTIVE FINISHES
DEFSTAN 00-970(PT0)/9(2012) : 2012	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 00-970(PT0)/17(2016) : 2016	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 00-970(PT0)/14(2014) : 2014	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 03-2/6(2011) : 2011	CLEANING AND PREPARATION OF METAL SURFACES
DEFSTAN 02-862(PT1)/3(2011) : 2011	NAVAL FASTENERS - PART 1: MATERIAL SELECTION AND USE
DEFSTAN 00-970(PT0)/13(2014) : 2014	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 02-862(PT3)/3(2011) : 2011	NAVAL FASTENERS - PART 3: PROCUREMENT OF FIRST LEVEL FASTENERS
DEFSTAN 00-970(PT0)/11(2013) : 2013	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 00-970(PT0)/15(2015) : 2015	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 00-970(PT0)/12(2014) : 2014	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 03-2/5(2009) : 2009	CLEANING AND PREPARATION OF METAL SURFACES
DEFSTAN 02-862(PT2)/3(2011) : 2011	NAVAL FASTENERS - PART 2: PROCUREMENT OF NON-FIRST LEVEL FASTENERS
DEFSTAN 03-38/2(2010) : 2010	GUIDANCE TO THE USE OF ALTERNATIVES TO HEXAVALENT CHROMIUM FOR THE PROTECTIVE COATING OF DEFENCE EQUIPMENT
DEFSTAN 00-970(PT0)/8(2011) : 2011	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 00-970(PT0)/10(2013) : 2013	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 03-28(PT1)/4(2008) : 2008	PHYSICAL VAPOUR DEPOSITION OF METALS - PART 1: PHYSICAL VAPOUR DEPOSITION OF ALUMINIUM FOR PROTECTION AGAINST CORROSION
DEFSTAN 00-970(PT0)/16(2015) : 2015	DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 21-5/3(2009) : 2009	CODE OF PRACTICE FOR PROTECTIVE FINISHES
SBAC TS 120 : 6	AGS2000 SERIES STIFFNUTS (INCLUDING CLINCH NUTS) BA & BSF THREADS FOR AIRCRAFT
13/30274750 DC : 0	BS 2A 204 ETC+A3 - SPECIFICATIONS FOR MACHINE SCREWS AND NUTS (UNIFIED THREADS) BELOW 1/4 INCH FOR AERONAUTICAL PURPOSES
SAE AMS 03-2 : 2017	CLEANING AND PREPARATION OF METAL SURFACES
STANAG 4626 : 2013	MODULAR AND OPEN AVIONICS ARCHITECTURE
BS SP57&58(1955) : 1955	SPECIFICATIONS FOR RIVET BURRS FOR AIRCRAFT
BS 3A125 TO 3A[...](1981) : 1981	AEROSPACE SERIES - SPECIFICATION FOR STIFFNUTS (UNIFIED THREADS) FOR AIRCRAFT
SAE AMS 03-14 : 2018	ELECTRODEPOSITION OF CHROMIUM FOR ENGINEERING PURPOSES

BS EN 12373-2:1999	Aluminium and aluminium alloys. Anodizing Determination of mass per unit area (surface density) of anodic oxidation coatings. Gravimetric method
BS EN 12373-17:2001	Aluminium and aluminium alloys. Anodizing Determination of electric breakdown potential
DEFSTAN 07-85(PT2)/3(2006) : 2006	DESIGN REQUIREMENTS FOR WEAPONS AND ASSOCIATED SYSTEMS - PART 2: SUPPLEMENTARY AND DESIGN PROCESS REQUIREMENTS
BS EN ISO 3696:1995	Water for analytical laboratory use. Specification and test methods
BS EN 12373-5:1999	Aluminium and aluminium alloys. Anodizing Assessment of quality of sealed anodic oxidation coatings by measurement of admittance
BS 6161-18:1991	Methods of test for anodic oxidation coatings on aluminium and its alloys Determination of surface abrasion resistance
BS EN 12373-10:1999	Aluminium and aluminium alloys. Anodizing Measurement of mean specific abrasion resistance of anodic oxidation coatings using an abrasive jet test apparatus
DEFSTAN 03-24/5(2008) : 2008	CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS
DEFSTAN 03-21/4(2008) : 2008	MECHANICAL METHODS FOR THE INDUCEMENT OF RESIDUAL SURFACE COMPRESSIVE STRESSES
DEFSTAN 03-2/4(2005) : 2005	CLEANING AND PREPARATION OF METAL SURFACES
BS EN ISO 2360:2017	Non-conductive coatings on non-magnetic electrically conductive base metals. Measurement of coating thickness. Amplitude-sensitive eddy-current method
BS EN 12373-9:1999	Aluminium and aluminium alloys. Anodizing Measurement of wear resistance and wear index of anodic oxidation coatings using an abrasive wheel wear test apparatus
BS EN ISO 9227:2017	Corrosion tests in artificial atmospheres. Salt spray tests
BS EN 12373-8:1999	Aluminium and aluminium alloys. Anodizing Determination of the comparative fastness to ultra-violet light and heat of coloured anodic oxidation coatings

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DEFSTAN 03-25/5(2008) : 2008

SULFURIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS

Table of Contents

Abstract

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Standards Referenced By This Book

Standards Referencing This Book

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