AWS A2.4 : 2012

Superseded

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STANDARD SYMBOLS FOR WELDING, BRAZING, AND NONDESTRUCTIVE EXAMINATION

Available format(s):

Superseded date: 16-06-2021

Language(s):

Published date: 01-01-2012

Publisher: American Welding Society

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Table of Contents - (Show below) - (Hide below)

Personnel
Foreword
List of Tables
List of Figures
1. General Requirements
2. Normative References
3. Terms and Definitions
4. Basic Welding Symbols
5. Joint Types
6. General Provisions for Welding Symbols
7. Groove Welds
8. Fillet Welds
9. Plug Welds
10. Slot Welds
11. Spot Welds
12. Seam Welds
13. Edge Welds
14. Stud Welds
15. Surfacing Welds
16. Brazing Symbols
17. Nondestructive Examination Symbols
Annex A (Normative) - Tables
Annex B (Informative) - Design of Standard Symbols
        (U.S. Customary Units)
Annex C (Informative) - Design of Standard Symbols (SI Units)
Annex D (Informative) - Commentary on AWS A2.4, Standard
        Symbols for Welding, Brazing, and Nondestructive
        Examination
Annex E (Informative) - Welding Symbol Chart
Annex F (Informative) - ISO 2553 Welding Symbols
Annex G (Informative) - Informative References
Annex H (Informative) - Guidelines for the Preparation
        of Technical Inquiries
List of AWS Documents on Definitions and Symbols

Abstract - (Show below) - (Hide below)

Defines a system for indicating welding, brazing, and nondestructive examination requirements. Also includes provisions for the graphical representation of welds, brazes, and nondestructive examination methods with conventions for specifying, at a minimum, the location and extent of their application.

General Product Information - (Show below) - (Hide below)

Committee	A2
Development Note	Also available as a combo set along with AWS A2.1 DC & WC. (03/2012) SPANISH Version of 2012 Edition is also available, See AWS A2.4 SPANISH. (04/2012)
Document Type	Standard
ISBN
Pages
Published
Publisher	American Welding Society
Status	Superseded
Superseded By	AWS A2.4:2020
Supersedes	AWS A2.0 : LATEST AWS A2.2 : LATEST AWS A2.4 : 2007

Standards Referenced By This Book - (Show below) - (Hide below)

MIL-A-52679 Revision B:1983	ANCHOR, SURFACING MEMBRANE: 12 INCH
MIL-STD-1689 Revision A:1990	FABRICATION, WELDING AND INSPECTION OF SHIPS STRUCTURE
MIL-W-13855 Revision D:1973	WEAPONS, SMALL ARMS AND AIRCRAFT ARMAMENT SUBSYSTEMS, GENERAL SPECIFICATION FOR
DOD STD 100 : C NOTICE 6	ENGINEERING DRAWING PRACTICES
CSA W59.2 : 1991 : R2008	WELDED ALUMINUM CONSTRUCTION
AISC 201 : 2006	AISC CERTIFICATION PROGRAM FOR STRUCTURAL STEEL FABRICATORS
CSA W59.2 : 1991	WELDED ALUMINUM CONSTRUCTION
AWS BRH:2007	BRAZING HANDBOOK
AWS C7.1M/C7.1 : 2013	RECOMMENDED PRACTICES FOR ELECTRON BEAM WELDING AND ALLIED PROCESSES
MIL-STD-372 Base Document:1988	WELDING, GAS METAL-ARC AND GAS TUNGSTEN-ARC, ALUMINUM ALLOYS, READILY WELDABLE FOR STRUCTURES, EXCLUDING ARMOR
MIL-STD-1881 Base Document:1983	BRAZING SILVER, GENERAL PROCESS FOR
MIL-STD-1185 Base Document:1979	WELDING, HIGH HARDNESS ARMOR
MIL-STD-1892 Base Document:1985	WELDING, ARC AND OXYFUEL GAS, PROCESS AND REQUIREMENTS FOR
AWS D1.1/D1.1M PORTUGUESE : 2010	STRUCTURAL WELDING CODE - STEEL
AWS D14.9/D14.9M : 2013	SPECIFICATION FOR THE WELDING OF HYDRAULIC CYLINDERS
NASA PRC 0009 : 2004	PROCESS SPECIFICATION FOR THE RESISTANCE SPOT WELDING OF BATTERY AND ELECTRONIC ASSEMBLIES
CSA W55.3:2008	CERTIFICATION OF COMPANIES FOR RESISTANCE WELDING OF STEEL AND ALUMINUM
AWS D15.1/D15.1M : 2012	RAILROAD WELDING SPECIFICATION FOR CARS AND LOCOMOTIVES
CSA W55.3 : 2008 : R2013	CERTIFICATION OF COMPANIES FOR RESISTANCE WELDING OF STEEL AND ALUMINUM
AWS D15.2/D15.2M : 2013	RECOMMENDED PRACTICES FOR THE WELDING OF RAILS AND RELATED RAIL COMPONENTS FOR USE BY RAIL VEHICLES
AWS D14.1/D14.1M:2005	SPECIFICATION FOR WELDING OF INDUSTRIAL AND MILL CRANES AND OTHER MATERIAL HANDLING EQUIPMENT
AWS D17.1 : 2001	SPECIFICATION FOR FUSION WELDING FOR AEROSPACE APPLICATIONS
AWS QC19 : 2002 ERRATA 2009	SPECIFICATION FOR AWS CERTIFICATION OF ROBOTIC ARC WELDING PERSONNEL
AWS C3.5 : 1999	SPECIFICATION FOR INDUCTION BRAZING
AWS D1.4/D1.4M : 2011	STRUCTURAL WELDING CODE - REINFORCING STEEL
AWS C3.4M/C3.4 : 2016	SPECIFICATION FOR TORCH BRAZING
AWS B4.0M : 2000	STANDARD METHODS FOR MECHANICAL TESTING OF WELDS
AWS GWF : 1998	GUIDE FOR SETTING UP A WELDER TRAINING FACILITY
AWS B4.0:2016	STANDARD METHODS FOR MECHANICAL TESTING OF WELDS
AWS D1.5M/D1.5 : 2015	BRIDGE WELDING CODE
AWS PRGVT : 1999	PRACTICAL REFERENCE GUIDE FOR WELDING INSPECTION MANAGEMENT: VISUAL INSPECTION OF PRESSURE VESSELS AND PRESSURE PIPING
AWS CMWS : 2005	CERTIFIED WELDING SUPERVISOR MANUAL FOR QUALITY AND PRODUCTIVITY IMPROVEMENT
AWS DPW : 1999	THE DESIGN AND PLANNING MANUAL FOR COST-EFFECTIVE WELDING
AWWA C231 : 2017	FIELD WELDING OF STAINLESS-STEEL WATER PIPE
AISC 206 : 2013	AISC CERTIFICATION PROGRAM FOR STRUCTURAL STEEL ERECTORS - STANDARD FOR STRUCTURAL STEEL ERECTORS
ASTM D 7447 : 2008 : EDT 1	Standard Practice for Symbolizing Adhesive Applications
ASME AG-1 : 2019	CODE ON NUCLEAR AIR AND GAS TREATMENT
PIP VESLP001 : 2012	LOW-PRESSURE, WELDED VESSEL SPECIFICATION
MIL-STD-2219 Revision A:2005	FUSION WELDING FOR AEROSPACE APPLICATIONS
PIP VESAC001 : 2016	AIR-COOLED HEAT EXCHANGER SPECIFICATION (SUPPLEMENT TO API STD 661, 7TH EDITION)
ASME AG 1 : 2012	CODE ON NUCLEAR AIR AND GAS TREATMENT
MIL STD 11991 : A	GENERAL STANDARD FOR PARTS, MATERIALS, AND PROCESSES
11/30050625 DC : 0	BS EN ISO 2553 - WELDING AND ALLIED PROCESSES - SYMBOLIC REPRESENTATION ON DRAWINGS - WELDED, BRAZED AND SOLDERED JOINTS
DIN EN ISO 2553:2014-04	WELDING AND ALLIED PROCESSES - SYMBOLIC REPRESENTATION ON DRAWINGS - WELDED JOINTS (ISO 2553:2013)
API 16D : 2004 : R2013	SPECIFICATION FOR CONTROL SYSTEMS FOR DRILLING WELL CONTROL EQUIPMENT AND CONTROL SYSTEMS FOR DIVERTER EQUIPMENT
AWS WHC4.09 : 0	MATERIALS AND APPLICATION - PART 1 - WELDING HANDBOOK, 9TH EDITION, VOLUME 4 - CHAPTER 9: MAINTENANCE AND REPAIR WELDING
MIL-STD-278 Revision F:1987	WELDING AND CASTING STANDARD
AWS B1.10M/B1.10:2016	GUIDE FOR THE NONDESTRUCTIVE EXAMINATION OF WELDS
ASTM D 7447 : 2008	Standard Practice for Symbolizing Adhesive Applications
CSA W47.2 : 2011	CERTIFICATION OF COMPANIES FOR FUSION WELDING OF ALUMINUM
AWS G2.1M/G2.1 : 2002	GUIDE FOR THE JOINING OF WROUGHT NICKEL-BASED ALLOYS
AISC 204 : 2008	AISC CERTIFICATION PROGRAM FOR BRIDGE AND HIGHWAY METAL COMPONENT MANUFACTURERS
ANSI/AWWA D107-16 ERR 1(CSV)	COMPOSITE ELEVATED TANKS FOR WATER STORAGE
NASA PRC 0011 : 2004	PROCESS SPECIFICATION FOR THE SEMI-AUTOMATIC AND MACHINE STUD WELDING OF NON FLIGHT HARDWARE
ASTM D 7447 : 2008 : R2014	Standard Practice for Symbolizing Adhesive Applications
AWS B2.1/B2.1M : 2014	SPECIFICATION FOR WELDING PROCEDURE AND PERFORMANCE QUALIFICATION
MIL-DTL-32572 Base Document:2017	Anchor Windlass, Electro-Mechanical, Vertical, Two-Speedand Variable-Speed
AWS D17.3/D17.3M : 2016	SPECIFICATION FOR FRICTION STIR WELDING OF ALUMINUM ALLOYS FOR AEROSPACE APPLICATIONS
SAE AMS 2689 : 2016	FUSION WELDING TITANIUM AND TITANIUM ALLOYS
AWS D1.9/D1.9M:2015	STRUCTURAL WELDING CODE - TITANIUM
W59-13	Welded steel construction (metal arc welding)
AWS D14.3/D14.3M : 2010	SPECIFICATION FOR WELDING EARTHMOVING, CONSTRUCTION, AND AGRICULTURAL EQUIPMENT
AWS B5.17:2014	SPECIFICATION FOR THE QUALIFICATION OF WELDING FABRICATORS
AWS WHC4.06 : 0	MATERIALS AND APPLICATION - PART 1 - WELDING HANDBOOK, 9TH EDITION, VOLUME 4 - CHAPTER 6: CLAD AND DISSIMILAR METALS
AWS D17.2/D17.2M : 2013	SPECIFICATION FOR RESISTANCE WELDING FOR AEROSPACE APPLICATIONS
AWS C3.4 : 1999	SPECIFICATION FOR TORCH BRAZING
AWS D10.7M/D10.7 : 2008	GUIDE FOR THE GAS SHIELDED ARC WELDING OF ALUMINUM AND ALUMINUM ALLOY PIPE
AWS B5.5:2011	SPECIFICATION FOR THE QUALIFICATION OF WELDING EDUCATORS
AWS C3.6 : 1999	SPECIFICATION FOR FURNACE BRAZING
AWS D8.14M/D8.14 : 2000	SPECIFICATION FOR AUTOMOTIVE AND LIGHT TRUCK COMPONENTS WELD QUALITY - ALUMINIUM ARC WELDING
AWS D14.5 : 1997	SPECIFICATION FOR WELDING OF PRESSES AND PRESS COMPONENTS
AWS D10.14M/D10.14 : 2010	GUIDE FOR MULTIPASS ORBITAL MACHINE PIPE GROOVE WELDING
AWS D1.2/D1.2M : 2014	STRUCTURAL WELDING CODE - ALUMINUM
MIL-HDBK-115 Revision C:2016	U.S. ARMY REVERSE ENGINEERING HANDBOOK (GUIDELINES AND PROCEDURES)
PIP VESV1002 : 2012	DESIGN AND FABRICATION SPECIFICATION FOR VESSELS ASME CODE SECTION 8, DIVISIONS 1 AND 2
MIL-STD-1688 Revision A:1990	FABRICATION, WELDING, AND INSPECTION OF HY-80/100 SUBMARINE APPLICATIONS
MIL-W-8604 Revision A:1982	WELDING, FUSION, ALUMINUM ALLOYS, PROCESSING AND PERFORMANCE OF
AWS WIT-T : 2008	WELDING INSPECTION TECHNOLOGY
CSA W59.2 : 1991 : R2013	WELDED ALUMINUM CONSTRUCTION
BS EN ISO 2553:2013	Welding and allied processes. Symbolic representation on drawings. Welded joints
AWS EG3.0 : 1996	TRAINING AND QUALIFICATION OF WELDING PERSONNEL: LEVEL 2 - ADVANCEDWELDER, GUIDE FOR THE
AWS C3.7 : 1999	SPECIFICATION FOR ALUMINUM BRAZING
MIL-HDBK-1941 Base Document:1998	METAL-ARC WELDING OF HOMOGENEOUS ARMOR
AWS D14.7/D14.7M : 2005	RECOMMENDED PRACTICES FOR SURFACING AND RECONDITIONING OF INDUSTRIAL MILL ROLLS
AWS C1.5 : 2015	SPECIFICATION FOR THE QUALIFICATION OF RESISTANCE WELDING TECHNICIANS
MIL-STD-1261 Revision C:1988	ARC WELDING PROCEDURES FOR CONSTRUCTIONAL STEELS
MIL STD 1693 : A NOTICE 2	FABRICATION WELDING AND INSPECTION OF HYPERBARIC CHAMBERS AND OTHER CRITICAL LAND BASED STRUCTURES
MIL-R-48628 Revision A:1993	RACK, STORAGE, SMALL ARMS: M14
MIL-STD-40008 Base Document:1991	PNEUMATIC PRESSURE TESTING PARTS WITH PERMANENT JOINTS - WELDS, BRAZES & RIVETS
AWS D8.8M : 2014	SPECIFICATION FOR AUTOMOTIVE WELD QUALITY - ARC WELDING OF STEEL
SAE AMS 2685 : 2017	WELDING, TUNGSTEN ARC, INERT GAS, (GTAW METHOD)
ASTM E 1742/E1742M : 2018 : REDLINE	Standard Practice for Radiographic Examination
NASA MSFC SPEC 504 : 1990	WELDING, ALUMINIUM ALLOYS
NASA MSFC SPEC 3679 : 2012	PROCESS SPECIFICATION - WELDING AEROSPACE HARDWARE
NASA PRC 0001 : 2012	PROCESS SPECIFICATION FOR THE MANUAL ARC WELDING OF ALUMINUM ALLOY HARDWARE
NASA PRC 0015 : 2016	PROCESS SPECIFICATION FOR AUTOMATIC AND MACHINE ARC WELDING OF TITANIUM AND TITANIUM ALLOY HARDWARE
NASA KSC STD Z 0004 : 2002	STRUCTURAL DESIGN, STANDARD FOR
NASA KSC GP 435 VOL 2 : 1993	ENGINEERING DRAWING PRACTICES - VOLUME 2: FACILITIES
NASA MSFC SPEC 560 : 1988	THE FUSION WELDING OF STEEL, CORROSION AND HEAT RESISTANT ALLOYS
NASA MSFC SPEC 766 : 1982	FUSION WELDING TITANIUM AND TITANIUM ALLOYS
NASA STD 5006 : 2015	GENERAL FUSION WELDING REQUIREMENTS FOR AEROSPACE MATERIALS
NASA KSC STD 152-1 : 1992	GRAPHIC SYMBOLS FOR DRAWINGS - PART 1: FACILITIES STANDARD FOR
NASA PRC 0010 : 2012	PROCESS SPECIFICATION FOR AUTOMATIC AND MACHINE ARC WELDING OF STEEL AND NICKEL ALLOY HARDWARE
NASA PRC 0005 : 2012	PROCESS SPECIFICATION FOR THE MANUAL ARC WELDING OF CARBON STEEL AND NICKEL ALLOY HARDWARE
NASA PRC 0002 : 2012	PROCESS SPECIFICATION FOR THE MANUAL ARC WELDING OF TITANIUM ALLOY HARDWARE
NASA PRC 0014 : 2012	PROCESS SPECIFICATION FOR FRICTION STIR WELDING
ASHRAE HDBK REFRIGERATION : 2014	ASHRAE HANDBOOK - REFRIGERATION
MIL-DTL-71172 Revision B:2005	CYLINDER, RECUPERATOR, RECOIL, M119A1/A2 HOWITZER LIGHT, TOWED: 105 MM
AWS C3.6M/C3.6 : 2016	SPECIFICATION FOR FURNACE BRAZING
MIL-DTL-901 Revision E:2017	SHOCK TESTS, H.I. (HIGH-IMPACT) SHIPBOARD MACHINERY, EQUIPMENT, AND SYSTEMS, REQUIREMENTS FOR
AWS B1.11M/B1.11 : 2015	GUIDE FOR THE VISUAL EXAMINATION OF WELDS
MIL-C-70741 Base Document:1992	CONTAINER, METAL, PA117
I.S. EN ISO 2553:2013	WELDING AND ALLIED PROCESSES - SYMBOLIC REPRESENTATION ON DRAWINGS - WELDED JOINTS (ISO 2553:2013)
API 16D RUSSIAN : 2004	SPECIFICATION FOR CONTROL SYSTEMS FOR DRILLING WELL CONTROL EQUIPMENT AND CONTROL SYSTEMS FOR DIVERTER EQUIPMENT
MIL-B-007883 Revision C:1968	BRAZING OF STEELS, COPPER, COPPER ALLOYS, NICKEL ALLOYS, ALUMINUM AND ALUMINUM ALLOYS
ISO 2553:2013	Welding and allied processes Symbolic representation on drawings Welded joints
MIL-STD-1947 Base Document:1985	ULTRASONIC WELDING OF ALUMINUM AND ALUMINUM ALLOY MATERIALS
AWS D1.1/D1.1M : 2015	STRUCTURAL WELDING CODE-STEEL
MIL S 51028 : B	SAMPLING AND GAGING KIT, PETROLEUM: PORTABLE
AWS D14.5/D14.5M:2009	SPECIFICATION FOR WELDING OF PRESSES AND PRESS COMPONENTS
MIL-S-13119 Revision E:1984	SPREADER, SLING, PLATE TYPE, NONADJUSTABLE
MIL-STD-370 Revision A:1993	VISUAL ACCEPTANCE CRITERIA FOR INSPECTION OF ALUMINUM ALLOY WELDS
AWS C7.3 : 2016	PROCESS SPECIFICATION FOR ELECTRON BEAM WELDING
AWS C3.11M/C3.11:2011	SPECIFICATION FOR TORCH SOLDERING
MIL-HDBK-21 Base Document:1995	HANDBOOK FOR WELDED JOINTS DESIGNS, ARMORED TANK TYPE
API 16D CHINESE : 2004	SPECIFICATION FOR CONTROL SYSTEMS FOR DRILLING WELL CONTROL EQUIPMENT AND CONTROL SYSTEMS FOR DIVERTER EQUIPMENT
MIL-STD-453 Revision C:1984	INSPECTION, RADIOGRAPHIC
API 577 : 2013	WELDING PROCESSES, INSPECTION, AND METALLURGY
AWS D14.2 : 1993	SPECIFICATION FOR METAL CUTTING MACHINE TOOL WELDMENTS
UNI EN ISO 2553 : 2014	WELDING AND ALLIED PROCESSES - SYMBOLIC REPRESENTATION ON DRAWINGS - WELDED JOINTS
AWS C3.9M/C3.9 : 2009	SPECIFICATION FOR RESISTANCE BRAZING
AWS B1.10 : 1999	GUIDE FOR THE NONDESTRUCTIVE EXAMINATION OF WELDS
AWS D1.6 : 1999 ERRATA 1999	STRUCTURAL WELDING CODE - STAINLESS STEEL
AWS D14.1 : 1997	SPECIFICATION FOR WELDING INDUSTRIAL AND MILL CRANES AND OTHER MATERIAL HANDLING EQUIPMENT
NASA KSC STD 152-2 : 1992	GRAPHIC SYMBOLS FOR DRAWINGS - PART 2: GROUND SUPPORT EQUIPMENT STANDARD FOR
EN ISO 2553:2013	Welding and allied processes - Symbolic representation on drawings - Welded joints (ISO 2553:2013)
UNE-EN ISO 2553:2014	Welding and allied processes - Symbolic representation on drawings - Welded joints (ISO 2553:2013)
AWS D14.4/D14.4M : 2012	SPECIFICATION FOR THE DESIGN OF WELDED JOINTS IN MACHINERY AND EQUIPMENT
AWS D8.14M : 2008	SPECIFICATION FOR AUTOMOTIVE WELD QUALITY - ARC WELDING OF ALUMINUM
AWS D18.3/D18.3M : 2015	SPECIFICATION FOR WELDING OF TANKS, VESSELS & OTHER EQUIPMENT IN SANITARY (HYGIENIC) APPLICATIONS
AWWA D100 : 2011	WELDED CARBON STEEL TANKS FOR WATER STORAGE
MIL-STD-1877 Revision B:1990	BRAZING, NICKEL, HIGH TEMPERATURE VACUUM
MIL-C-42066 Revision A:2000	CARRIER, LITTER, WHEELED
MIL-DTL-13931 Revision J:1999	Cannon: General Specification for
CSA W59.2 : 1991(R2008)	WELDED ALUMINUM CONSTRUCTION
17/30353044 DC : 0	BS EN ISO 2553 - WELDING AND ALLIED PROCESSES - SYMBOLIC REPRESENTATION ON DRAWINGS - WELDED JOINTS
NASA PRC 0008 : 2004	PROCESS SPECIFICATION FOR THE QUALIFICATION OF MANUAL ARC WELDERS
DOD-STD-2185 Base Document:1986	REQUIREMENTS FOR REPAIR AND STRAIGHTENING OF BRONZE NAVAL SHIP PROPELLERS
ASTM E 2104 : 2015 : REDLINE	Standard Practice for Radiographic Examination of Advanced Aero and Turbine Materials and Components
AWS C3.7M/C3.7 : 2011	SPECIFICATION FOR ALUMINUM BRAZING
API 16D:2004	SPECIFICATION FOR CONTROL SYSTEMS FOR DRILLING WELL CONTROL EQUIPMENT AND CONTROL SYSTEMS FOR DIVERTER EQUIPMENT
W55.3-08 (R2018)	Certification of companies for resistance welding of steel and aluminum
API 577 CHINESE : 2013	WELDING PROCESSES, INSPECTION AND METALLURGY
AWS A9.5 : 2013	GUIDE FOR VERIFICATION AND VALIDATION IN COMPUTATION WELD MECHANICS
AWS D3.6M : 2010	UNDERWATER WELDING CODE
AWS C6.2/C6.2M : 2006	SPECIFICATION FOR FRICTION WELDING OF METALS
AWS D3.9 : 2010	SPECIFICATION FOR CLASSIFICATION OF WELD-THROUGH PAINT PRIMERS
AWS D14.3 : 1994	WELDING EARTHMOVING AND CONSTRUCTION EQUIPMENT, SPECIFICATION FOR,
AWS C3.5M/C3.5 : 2016	SPECIFICATION FOR INDUCTION BRAZING
AWS D5.2 : 1984	WELDED STEEL ELEVATED TANKS, STANDPIPES, AND RESERVOIRS FOR WATER STORAGE, STANDARD FOR,
AWS EG4.0 : 1996	GUIDE FOR THE TRAINING AND QUALIFICATION OF WELDING PERSONNEL: LEVEL 3, EXPERT WELDER
ASTM E 2698 : 2010	Standard Practice for Radiological Examination Using Digital Detector Arrays

Standards Referencing This Book - (Show below) - (Hide below)

AWS A1.1 : 2016	METRIC PRACTICE GUIDE FOR THE WELDING INDUSTRY
AWS A5.30/A5.30M : 2007	SPECIFICATION FOR CONSUMABLE INSERTS
AWS B1.10M/B1.10:2016	GUIDE FOR THE NONDESTRUCTIVE EXAMINATION OF WELDS
AWS A3.0M/A3.0 : 2010	STANDARD WELDING TERMS AND DEFINITIONS INCLUDING TERMS FOR ADHESIVE BONDING, BRAZING, SOLDERING, THERMAL CUTTING, AND THERMAL SPRAYING

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