DEFSTAN 00-970(PT0)/5(2007) : 2007
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
Available format(s)
PDF
Language(s)
English
Published date
01-01-2007
Publisher
Superseded date
22-01-2010
Superseded by
$31.16
Including GST where applicable
Preface
Section One - General
0 Introduction
1 Scope
2 WARNING
3 Related Documents
4 Definitions
Section Two - Format of 00-970
Section Three - Use of 00-970
Section Four - Qualification of Equipment for Use on Aircraft
Section Five -Amendment Procedure
Section Six - Status of Issue
Annex A - Table of Contents
Annex B - Applicable NATO Standardization Agreements (STANAGs)
Annex C - Applicable UK Defence Standards
Annex D - US Military Specifications
Annex E - Definitions
Provides guidance and content information, together with definitions of the terms used throughout this document.
| DevelopmentNote |
Supersedes DEFSTAN 00-970(PT0)/4(2006). (03/2007)
|
| DocumentType |
Standard
|
| Pages |
66
|
| PublisherName |
UK Ministry of Defence Standards
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| DEFSTAN 47-25/1(1982) : 1982 | PIPELINES AND PIPE COUPLINGS FOR AIRCRAFT FLUID SYSTEMS (METRIC) |
| DEFSTAN 00-44/1(2007) : 2007 | RELIABILITY AND MAINTAINABILITY DATA COLLECTION AND CLASSIFICATION |
| DEFSTAN 00-35(PT4)/4(2006) : 2006 | ENVIRONMENTAL HANDBOOK FOR DEFENCE MATERIEL - PART 4: NATURAL ENVIRONMENTS |
| DEFSTAN 17-3/1(1972) : 1972 | ADAPTORS, AIRCRAFT JACKING POINTS (DETACHABLE JACKING PADS) |
| DEFSTAN 08-11/1(2000) : 2000 | NBC PROTECTION FOR AIR PLATFORMS |
| DEFSTAN 05-37/2(1989) : 1989 | THE POLICY FOR THE PROCUREMENT OF ELECTRONIC COMPONENTS |
| DEFSTAN 17-1/2(1984) : 1984 | AIRCRAFT LIFTING SLINGS, APERTURE OF TERMINAL RING OR LINK |
| DEFSTAN 00-16/1(1984) : 1984 | GUIDE TO THE ACHIEVEMENT OF QUALITY IN SOFTWARE |
| DEFSTAN 03-5/3(1995) : 1995 | AUTOCATALYTIC (ELECTROLESS) NICKEL COATING OF METALS |
| DEFSTAN 05-124/1(1992) : 1992 | PROCEDURES FOR THE PROCUREMENT OF AIRCRAFT ENGINES AND THEIR ACCESSORIES |
| DEFSTAN 00-13/3(1994) : 1994 | REQUIREMENTS FOR THE ACHIEVEMENT OF TESTABILITY IN ELECTRONIC AND ALLIED EQUIPMENT |
| DEFSTAN 61-17/4(2001) : 2001 | THE SELECTION AND INTRODUCTION OF BATTERIES FOR SERVICE USE |
| DEFSTAN 47-19/1(1977) : 1977 AMD 2 | AIRCRAFT PIPE FITTINGS (INCH SERIES) - SCREW THREADS, HEXAGON SIZES, TAPPED HOLES, AND 'O' RING SEALS |
| DEFSTAN 08-117(PT1)/1(2000) : 2000 | DESIGN GUIDANCE FOR THE REDUCTION OF THE INFRARED SIGNATURE OF SURFACE SHIPS - CATEGORY 2 - PART 1: GENERAL PRINCIPLES AND METHODS |
| DEFSTAN 16-26/1(1983) : 1983 | CHARGING VALVES FOR AIRCRAFT HIGH PRESSURE NITROGEN AND HYDRAULIC FLUID SYSTEMS |
| DEFSTAN 47-23/1(1980) : 1980 | BEAD PROFILE FOR AIRCRAFT PIPING AND DUCTING (FLEXIBLE CONNECTIONS) |
| DEFSTAN 03-19/3(2005) : 2005 | ELECTRO-DEPOSITION OF CADMIUM |
| DEFSTAN 05-18/4(1985) : 1985 AMD 2 1987 | SYMBOL MARKINGS OF SERVICING AND SAFETY/HAZARD POINTS ON AIRCRAFT, GROUND SUPPORT EQUIPMENT AND GUIDED WEAPONS SYSTEMS |
| DEFSTAN 13-8/4(1978) : 1978 | DIMENSIONAL REQUIREMENTS FOR AIRBORNE STORES, ASSOCIATED SUSPENSION AND RELEASE SYSTEMS AND ELECTRICAL CONTROL CONNECTIONS |
| DEFSTAN 03-11/4(2003) : 2003 | PHOSPHATE TREATMENT OF IRON AND STEEL |
| DEFSTAN 00-10/3(1986) : 1986 AMD 2 1993 | GENERAL DESIGN AND MANUFACTURING REQUIREMENTS FOR SERVICE ELECTRONIC EQUIPMENT |
| DEFSTAN 00-35(PT5)/4(2006) : 2006 | ENVIRONMENTAL HANDBOOK FOR DEFENCE MATERIEL - PART 5: INDUCED MECHANICAL ENVIRONMENTS |
| DEFSTAN 00-26/2(1988) : 1988 | GUIDE TO THE EVALUATION AND EXPRESSION OF THE UNCERTAINTIES ASSOCIATED WITH THE RESULTS OF ELECTRICAL MEASUREMENTS |
| DEFSTAN 03-18/3(2003) : 2003 | CHROMATE CONVERSION COATINGS (CHROMATE FILMING TREATMENTS) GRADES: STANDARD AND BRUSHING FOR ALUMINIUM AND ALUMINIUM ALLOYS |
| DEFSTAN 61-5(PT1)/4(2006) : 2006 | LOW VOLTAGE ELECTRICAL POWER SUPPLY SYSTEMS - PART 1: TERMINOLOGY AND DEFINITIONS |
| DEFSTAN 00-35(PT6)/4(2006) : 2006 | ENVIRONMENTAL HANDBOOK FOR DEFENCE MATERIEL - PART 6: INDUCED CLIMATIC, CHEMICAL AND BIOLOGICAL ENVIRONMENTS |
| DEFSTAN 05-19/1(1972) : 1972 | LIMITS AND FITS FOR ENGINEERING |
| DEFSTAN 59-97/3(1990) : AMD 1 | HEAT SHRINKABLE INSULATION MATERIALS - GENERAL REQUIREMENTS, TESTS AND TEST METHODS FOR CAPABILITY APPROVAL |
| DEFSTAN 05-42/2(1982) : 1982 | PARTICULATE CONTAMINATION CLASSES FOR FLUIDS IN HYDRAULIC SYSTEMS |
| DEFSTAN 53-9/1 : LATEST | BOLTS, MACHINE SCREWS, AND NUTS FOR AEROSPACE VEHICLES |
| DEFSTAN 00-49/1(1996) : 1996 | RELIABILITY AND MAINTAINABILITY MOD GUIDE TO TERMINOLOGY DEFINITIONS |
| DEFSTAN 59-76/1(1981) : 1981 | TRANSFORMERS AND INDUCTORS - GENERAL REQUIREMENTS FOR THE PROCUREMENT OF TRANSFORMERS AND INDUCTORS - CAPABILITY APPROVAL |
| DEFSTAN 17-10/2(1984) : 1984 | TOWING ATTACHMENTS AND TOWING/STEERING EQUIPMENT FOR AIRCRAFT |
| DEFSTAN 00-60(PT20)/7(2004) : 2004 | INTEGRATED LOGISTIC SUPPORT - PART 20: APPLICATION OF INTEGRATED SUPPLY SUPPORT PROCEDURES |
| DEFSTAN 00-34/1(1986) : 1986 AMD 1 1990 | STANDARD SYMBOLOGY FOR AUTOMATIC IDENTIFICATION MARKING - BAR CODE 39 |
| DEFSTAN 03-10/2(1987) : 1987 | ELECTRO-DEPOSITION OF NICKEL AND CHROMIUM |
| DEFSTAN 05-100/3(2006) : 2006 | MINISTRY OF DEFENCE REQUIREMENTS FOR AIRCRAFT FLIGHT AND GROUND RUNNING |
| DEFSTAN 03-13/1(1977) : 1977 | GUIDE FOR THE PREVENTION OF CORROSION OF METAL CAUSED BY VAPOUR FROM ORGANIC MATERIALS |
| DEFSTAN 47-21/1(1979) : 1979 | FLEXIBLE HOSE ASSEMBLIES FOR PITOT AND STATIC SYSTEMS IN AIRCRAFT (METRIC) |
| DEFSTAN 49-2/2(1975) : 1975 AMD 3 | LUBRICATING GUNS, HAND AND GUNS, FLUID, DIRECT DELIVERY |
| DEFSTAN 00-29/1(1982) : 1982 | FUNGAL CONTAMINATION AFFECTING THE DESIGN OF MILITARY MATERIAL |
| DEFSTAN 05-43/1(1977) : 1977 | STANDARD PROCEDURES FOR TAKING SAMPLES OF HYDRAULIC FLUIDS FOR EVALUATION OF PARTICULATE CONTAMINATION |
| DEFSTAN 05-17/2(191980) : 1980 | ELECTROTECHNICAL TERMS AND GRAPHICAL SYMBOLS |
| DEFSTAN 59-42(PT1)/1(1990) : 1990 | HEAT SHRINK SOLDER SHEATHS - PART 1: REQUIREMENTS AND TEST METHODS FOR CAPABILITY APPROVAL |
| DEFSTAN 05-34/2(1984) : 1984 | MARKING OF SERVICE MATERIAL |
| DEFSTAN 05-21/1(1973) : 1973 | QUALITY CONTROL SYSTEM REQUIREMENTS FOR INDUSTRY |
| DEFSTAN 05-56/1(1980) : 1980 | GRAPHICAL SYMBOLS FOR AIRCRAFT HYDRAULIC AND PNEUMATIC SYSTEMS |
| DEFSTAN 53-88/1(1979) : 1979 | WASHERS, LOCK, KEY (TAB) AND SPRING TENSION (CRINKLE), INCH SERIES, FOR AEROSPACE APPLICATIONS |
| DEFSTAN 15-2/1(1987) : 1987 | FLEXIBLE TANKS FOR USE IN AIRCRAFT FUEL AND METHANOL/WATER SYSTEMS |
| DEFSTAN 16-10/3(1983) : 1983 AMD 1 | LOW PRESSURE AIR STARTING OF AIRCRAFT ENGINES |
| DEFSTAN 59-36(PT2)/2(1980) : 2 | ELECTRONIC COMPONENTS FOR DEFENCE PURPOSES - PART 2: PROCEDURE FOR THE SELECTION, SPECIFICATION AND QUALITY ASSURANCE OF ELECTRONIC COMPONENTS FOR USE IN DEFENCE EQUIPMENT |
| DEFSTAN 05-2/2(1972) : AMD 2 | CODIFICATION OF EQUIPMENT |
| DEFSTAN 00-25(PT3)/2(1997) : 1997 | HUMAN FACTORS FOR DESIGNERS OF EQUIPMENT - PART 3: BODY STRENGTH AND STAMINA |
| DEFSTAN 81-14/6(2004) : 2004 | CASES, WOOD (BATTEN AND BOARD CONSTRUCTION) |
| DEFSTAN 05-61(PT1)/4(2004) : 2004 | QUALITY ASSURANCE PROCEDURAL REQUIREMENTS - PART 1: CONCESSIONS |
| DEFSTAN 03-8/2(1992) : 1992 | ELECTRO-DEPOSITION OF TIN |
| DEFSTAN 16-23/2(1982) : 1982 | FLOOR FITTINGS FOR CARGO TRANSPORT AIRCRAFT APERTURES FOR TIE-DOWN POINTS |
| DEFSTAN 53-94/1(1983) : 1983 | PROTECTIVE CAPS AND PLUGS FOR AIRCRAFT PIPELINES |
| DEFSTAN 00-35(PT2)/4(2006) : 2006 | ENVIRONMENTAL HANDBOOK FOR DEFENCE MATERIEL - PART 2: ENVIRONMENTAL TRIALS PROGRAMME DERIVATION AND ASSESSMENT METHODOLOGIES |
| DEFSTAN 53-32/2(1980) : 1980 CORR 1981 | GUIDE TO THE METHODS OF LOCKING SCREWED FASTENERS |
| DEFSTAN 47-12/4(1987) : 1987 | POLYTETRAFLUOROETHYLENE (PTFE) HOSE ASSEMBLIES (WIRE REINFORCED) FOR MEDIUM AND HIGH PRESSURE FLUID SYSTEMS IN AIRCRAFT |
| DEFSTAN 15-3 : LATEST | TRANSPARENT GLAZING MATERIALS AND ACCESSORIES FOR AEROSPACE APPLICATIONS |
| DEFSTAN 53-1/3(1981) : 1981 AMD 1 1984 | USE OF UNIFIED SCREW THREADS |
| DEFSTAN 05-28/1(1980) : 1980 | NATO GUIDE TO THE PREPARATION OF SPECIFICATIONS FOR THE PROCUREMENT OF DEFENCE MATERIAL |
| DEFSTAN 03-4/5(2006) : 2006 | THE PRE-TREATMENT AND PROTECTION OF STEEL ITEMS OF MAXIMUM TENSILE STRENGTH EXCEEDING 1450 MPA |
| DEFSTAN 00-41/3(1993) : 1993 | RELIABILITY AND MAINTAINABILITY MOD GUIDE TO PRACTICES AND PROCEDURES |
| DEFSTAN 00-31/1(1987) : 1987 | THE DEVELOPMENT OF SAFETY CRITICAL SOFTWARE FOR AIRBORNE SYSTEMS |
| DEFSTAN 05-91/2(1995) : 1995 | QUALITY SYSTEM REQUIREMENTS FOR DESIGN/DEVELOPMENT, PRODUCTION, INSTALLATION AND SERVICING |
| DEFSTAN 08-5/1(1984) : 1984 ADDENDUM 1998 | DESIGN REQUIREMENTS FOR WEAPON SYSTEMS (GUIDED WEAPONS, TORPEDOES AND AIRBORNE ARMAMENT STORES) |
| DEFSTAN 05-61(PT14)/1(1994) : 1994 | QUALITY ASSURANCE PROCEDURAL REQUIREMENTS - PART 14: PROOF SCHEDULES FOR CONVENTIONAL WEAPONS, AMMUNITION AND EXPLOSIVE ITEMS OF NEW MANUFACTURE |
| DEFSTAN 66-27/1(1978) : 1978 AMD 1 | PRESSURE CONNECTIONS ON AIRCRAFT INSTRUMENTS AND ASSOCIATED EQUIPMENT |
| DEFSTAN 00-971/1(1987) : 1987 | GENERAL SPECIFICATION FOR AIRCRAFT GAS TURBINE ENGINES |
| DEFSTAN 03-7/1(1973) : 1973 | PAINTING OF METAL AND WOOD |
| DEFSTAN 00-35(PT3)/4(2006) : 2006 | ENVIRONMENTAL HANDBOOK FOR DEFENCE MATERIEL - PART 3: ENVIRONMENTAL TEST METHODS |
| DEFSTAN 03-26/2(1988) : 1988 | HARD ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| DEFSTAN 16-21/2(1986) : 1986 AMD 1 1986 | MARKING OF AIRCRAFT HYDRAULIC COMPONENTS |
| DEFSTAN 00-17/1(1985) : 1985 | MODULAR APPROACH TO SOFTWARE CONSTRUCTION, OPERATION AND TEST - MASCOT |
| DEFSTAN 17-2/3(1989) : 1989 | REPLENISHMENT EQUIPMENT FOR AERO ENGINE THRUST AUGMENTATION (REFRIGERANT INJECTION) SYSTEMS |
| DEFSTAN 00-60(PT22)/5(2003) : 2003 | INTEGRATED LOGISTIC SUPPORT PART 22: PROCEDURES FOR CODIFICATION |
| DEFSTAN 03-14/3(2005) : 2005 | ELECTRO-DEPOSITION OF CHROMIUM FOR ENGINEERING PURPOSES |
| DEFSTAN 95-7/2(2004) : 2004 | WIRE FOR LOCKING PURPOSES AND WIRE LOCKING PRACTICE FOR AEROSPACE USE |
| DEFSTAN 61-10/4(1984) : 1984 | GENERATOR SETS (GROUND, ENGINE DRIVEN) |
| DEFSTAN 05-13/2(1991) : 1991 | MARKS IDENTIFYING METRIC FEATURES OF EQUIPMENT AND PARTS |
| DEFSTAN 00-60(PT10)/5(2002) : 2002 | INTEGRATED LOGISTIC SUPPORT - PART 10: ELECTRONIC DOCUMENTATION |
| DEFSTAN 03-25/4(2003) : 2003 | SULFURIC ACID ANODISING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| DEFSTAN 05-99/2(2004) : 2004 | MANAGING GOVERNMENT FURNISHED ASSETS IN INDUSTRY |
| DEFSTAN 03-2/4(2005) : 2005 | CLEANING AND PREPARATION OF METAL SURFACES |
| DEFSTAN 16-24/1(1983) : 1983 | SHAPES OF AIRFRAME AND ENGINE CONTROL HANDLES AND KNOBS IN FIXED WING AIRCRAFT |
| DEFSTAN 05-57/4(2000) : 2000 | CONFIGURATION MANAGEMENT OF DEFENSE MATERIAL |
| DEFSTAN 61-11(PT1)/1(1969) : 1969 | CABLES, CORDS AND WIRES, ELECTRICAL CABLES, RADIO FREQUENCY |
| DEFSTAN 59-31/2 : LATEST | LIGHTING PROTECTION |
| DEFSTAN 16-6/2(1991) : 1991 | CHARGING VALVE FOR AIRCRAFT LIQUID SPRING UNDERCARRIAGE UNITS |
| DEFSTAN 61-3/5(1992) : INTERIM | GENERIC SPECIFICATION FOR BATTERIES, NON RECHARGEABLE, PRIMARY |
| DEFSTAN 28-8/2(1993) : 1993 | GENERAL REQUIREMENTS FOR THE OVERHAUL OF AERO ENGINES, ENGINE MODULES, JET PIPES AND ENGINE ACCESSORIES INCLUDING PROPELLORS |
| DEFSTAN 08-46/2(2002) : 2002 AMD 2 2004 | THE ELECTRIC, MAGNETIC AND ELECTROMAGNETIC ENVIRONMENT |
| DEFSTAN 13-91/2(1981) : 1981 AMD 2 | MECHANICAL ARMING WIRE CONNECTIONS BETWEEN AIRBORNE ARMAMENT STORES AND ASSOCIATED SUSPENSION EQUIPMENT |
| DEFSTAN 01-5/14(2005) : 2005 | FUELS, LUBRICANTS AND ASSOCIATED PRODUCTS |
| DEFSTAN 03-3/3(2002) : 2002 | PROTECTION OF ALUMINIUM ALLOYS BY SPRAYED METAL COATINGS |
| DEFSTAN 05-126/2(1994) : 1994 | THE CONTRACTORS REPAIR SUPPLY PROCEDURE |
| DEFSTAN 47-17/1(1978) : 1978 | ADAPTORS AND SEALS FOR PIPE CONNECTIONS TO AIRCRAFT PITOT/STATIC INSTRUMENTS AND ASSOCIATED EQUIPMENT |
| DEFSTAN 03-36/1(2005) : 2005 | GUIDANCE TO THE USE OF CADMIUM ALTERNATIVES IN THE PROTECTIVE COATING OF DEFENCE EQUIPMENT |
| DEFSTAN 00-14/3(1997) : 1997 | THE USE OF ATLAS IN THE DEFENCE INDUSTRY |
| DEFSTAN 16-1/3(1992) : 1992 CORR 1997 | OXYGEN; LIQUID AND GASEOUS (BREATHING) FOR AIRCRAFT SYSTEMS |
| DEFSTAN 00-3/3(1985) : 1985 | DESIGN GUIDANCE FOR THE TRANSPORTABILITY OF EQUIPMENT |
| DEFSTAN 16-13/3(1989) : 1989 | RECEPTION COUPLINGS AND NOZZLES FOR IN-FLIGHT REFUELLING OF AIRCRAFT |
| DEFSTAN 47-22/1(1979) : 1979 | END FITTINGS FOR FLEXIBLE HOSE ASSEMBLIES FOR AIRCRAFT - METRIC |
| DEFSTAN 16-17/2(1983) : 1983 | AIR SUPPLY AND TEST CONNECTIONS FOR AIRCRAFT |
| DEFSTAN 00-1/2(1977) : 1977 | EXTREME CLIMATIC CONDITIONS GOVERNING EQUIPMENT DESIGN |
| DEFSTAN 00-60(PT21)/6(2004) : 2004 | INTEGRATED LOGISTIC SUPPORT - PART 21: PROCEDURES FOR INITIAL PROVISIONING |
| DEFSTAN 10-21/1(1976) : 1976 AMD 2 | AIRCRAFT EJECTOR RELEASE UNITS FOR CONVENTIONAL MUNITIONS |
| DEFSTAN 03-33/1(1993) : 1993 | CHROMATE PASSIVATION OF CADMIUM AND ZINC SURFACES |
| DEFSTAN 05-122/3(2006) : 2006 | PROCEDURES FOR THE MILITARY REGISTRATION OF CIVIL-OWNED AIRCRAFT |
| DEFSTAN 00-37/1(1988) : INTERIM | GUIDE TO THE PROCUREMENT OF A COMPUTER AIDED DESIGN [CAD] SYSTEM |
| DEFSTAN 61-1 : LATEST | MOTORS, ELECTRIC |
| DEFSTAN 00-50/1(1982) : 1982 | GUIDE TO CHEMICAL ENVIRONMENTAL CONTAMINANTS AND CORROSION AFFECTING THE DESIGN OF MILITARY MATERIAL |
| DEFSTAN 59-71(PT1)/2(1993) : 1993 | CRIMPED ELECTRICAL CONNECTORS FOR COPPER CONDUCTORS - PART 1: GENERAL REQUIREMENTS |
| DEFSTAN 05-59/2(1988) : 1988 | MAINTENANCE DATA AND DEFECT REPORTING IN THE ROYAL NAVY, THE ARMY AND THE ROYAL AIR FORCE |
| DEFSTAN 13-37(PT1)/2(1981) : 1981 AMD 1 1982 | DESIGN SAFETY PRINCIPLES AND GENERAL DESIGN CRITERIA FOR AIRBORNE WEAPON FUZING SYSTEMS |
| DEFSTAN 53-70/2(1976) : 1976 AMD 2 | DIMENSIONS OF ELASTOMERIC TOROIDAL SEALING RINGS (INCH SERIES) FOR AIRCRAFT PURPOSES |
| DEFSTAN 05-53/1(1981) : 1981 | IDENTIFICATION OF DRAWINGS FOR THEIR RETRIEVAL |
| DEFSTAN 03-24/4(2003) : 2003 | CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS |
| DEFSTAN 16-7/3(1990) : 1990 | COMPRESSED AIR, CHARACTERISTICS, SUPPLY, PRESSURE AND HOSES FOR TECHNICAL PURPOSES |
| DEFSTAN 59-41(PT2)/5(2002) : 2002 | ELECTROMAGNETIC COMPATIBILITY - PART 2: MANAGEMENT AND PLANNING PROCEDURES |
| DEFSTAN 25-7/1(1968) : 1968 AMD 1 | HORNS, ELECTRICAL |
| DEFSTAN 00-52/3(1991) : 1991 | THE GENERAL REQUIREMENTS FOR PRODUCT ACCEPTANCE AND MAINTENANCE TEST SPECIFICATIONS AND TEST SCHEDULES |
| DEFSTAN 03-20/3(2005) : 2005 | ELECTRO-DEPOSITION OF ZINC |
| DEFSTAN 53-68/2(1977) : 1977 AMD 2 1984 | V-FLANGE COUPLINGS FOR AIRCRAFT PIPING AND DUCTING (METRIC) |
| DEFSTAN 17-5/2(1986) : 1986 | POWER DRIVEN HYDRAULIC GROUND SERVICING EQUIPMENT FOR AIRCRAFT |
Summarise
$31.16
Including GST where applicable
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.