Skip to content
Please enter a keyword to search

  • BS 6221-20:1984

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Printed wiring boards Guide for the assembly of printed wiring boards

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  01-03-2006

    Language(s):  English

    Published date:  30-04-1984

    Publisher:  British Standards Institution

    Add To Cart

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

    Foreword
    Committees responsible
    Guide
    1. Scope
    2. Definitions
    3. Handling of components prior to assembly
    4. Stoving
    5. Mounting of components
    6. Board assembly
    7. Solderability: process considerations
    8. Soldering
    9. Cleaning of boards and assemblies
    10. Flatness
    11. Inspection of printed board assemblies
    12. Storage conditions
    13. Terminals and connector jacks
    14. Conformal coatings
    15. Assembly of surface mounted devices
    Tables
    1. Devices sensitive to static discharge
    2. Static resistance and acceptable discharge times
    Figures
    1. Simple offset preformed leads
    2. Dimple preformed leads
    3. Component sequencing
    4. Single-sided assembly for SMDs only
    5. Double-sided assembly for SMDs only
    6. Mixed technologies with SMDs on only one side of PWB
    7. Mixed technologies with SMDs on both sides of PWB
    8. Condensation reflow
    9. Conveyorized infra-red reflow furnace
    10. Dual wave soldering

    Abstract - (Show below) - (Hide below)

    Recommends principles and practices for the assembly of components on printed wiring boards irrespective of their method of manufacture.

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

    Committee EPL/501
    Development Note Supersedes BS 6221(1982) and BS 5370(1976) (07/2004) Supersedes 83/20739 DC and 86/32129 DC (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Supersedes

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

    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)/7(2011) : 2011 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 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)/13(2014) : 2014 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 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)/16(2015) : 2015 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
    BS 6221-23:1991 Printed wiring boards Guide for the design and use of printed wiring boards: surface mounted devices
    DEFSTAN 00-970(PT9)/5(2009) : 2009 DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 9: UAV SYSTEMS
    BS 6221-21:1984 Printed wiring boards Guide for the repair of printed wiring boards
    BS 6221-3:1984 Printed wiring boards Guide for the design and use of printed wiring boards
    BS 6221-22:1990 Printed wiring boards Guide to the use of printed wiring board substrate materials: surface mount technology

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

    BS 5917:1980 Specification for conformal coating material for use on printed circuit assemblies
    BS 6096-3:1981 Marking inks and solder resist coating materials for printed circuits Specification for solder resist inks
    BS 6221-21:1984 Printed wiring boards Guide for the repair of printed wiring boards
    BS 6096-1:1981 Marking inks and solder resist coating materials for printed circuits Methods of test
    BS 6096-4:1981 Marking inks and solder resist coating materials for printed circuits Specification for permanent polymer (dry film solder mask) material
    BS 6221-3:1991 Printed wiring boards Guide for the design and use of printed wiring boards
    BS 5625:1980 Specification of purchasing requirements and methods of test for fluxes for soft soldering
    BS 2011-2.1T:1981 Environmental testing. Tests Test T. Soldering
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective