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BS 6221-20:1984

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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Withdrawn date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

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

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

Committee
EPL/501
DevelopmentNote
Supersedes BS 6221(1982) and BS 5370(1976) (07/2004) Supersedes 83/20739 DC and 86/32129 DC (09/2005)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Withdrawn
Supersedes

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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

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