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Design Standards

BS 8888:2004 Technical Product Documentation (TPD)
Specification for defining, specifying and graphically representing products

This British Standard supersedes BS308-1:1993, BS308-2:1985 and BS308-3:1990, which are all withdrawn.  Drawing conventions which applied to BS 308-1'2'3 in general also apply to the European Standards referenced in BS 8888.

This standard is provided to unify all of the recently implemented ISO and EN ISO standards related to Technical Product Documentation (it references them).  Most designers and engineers should have no difficulty in working to the new standards. BS 8888 references standards covering all aspects of technical product documentation including:

  • Engineering Flow Diagrams,
  • Representation of Engineering components,
  • Lettering,
  • Units/ quantities,
  • Tolerancing,
  • Geometric Product Specifications,
  • Orthographic/Axonometric representation,
  • Handling of Computer based information
  • Metrology etc. etc.

An important difference between BS 308 and BS 8888 is in the marking of the decimal place.   In BS308 the decimal place is indicated with a decimal point.   In BS 8888 the decimal place is indicated with a comma with each group of three digits from the decimal provided with a space e.g. 14 234,012 8 .

For manual drawings this is not really a problem.   For Autocad drawings on a Windows based PC it is most convenient set the decimal point to display as a comma on the regional settings on the control panel (This option is available if you set the Country to German or France). .

BS 8888 KITS

It is important that anyone working to BS 8888 has convenient access to the referenced European standards. All of the standards referenced in BS 8888 are grouped into four "Kits".    These kits, with linked lists, are provided below.

The kits can be procured from British Standards Publishing, see link below, or they are available for reference in the UK at Central Libraries.  British Standards also sell a CD which includes all of BS 8888 and all of the associated standards..

Note:In the 2004 edition of the BS 8888 CD a number of addition standards has been included. These are listed in the linked page "2004 Added Standards "





British Standards - ISO Drawing Aids

Drawing Sheet Sizes Title Block Notes Drawing Guide
Limits and Fits-Holes & Shafts Dimensioning Geometric Tolerances
Weld Representation Drawing Components Tolerances and Limits
Surface Texture Notes Lettering
Simplified Fastening Assy's Abbreviations and Symbols Flowsheet symbols
Notes on Process Drawings Notes On Mechanical Drawings Electrical/ Control Diagram Types
Diagram Ref. Standards Electrical Control Symbols Electrical Power Symbols
Mechanical Flowsheet symbols Hydraulic/Pneumatic Symbols Useful Layout Dimensions
Item References/Item List Checking Mechanical Drawings  


Links Providing information on Drawing
  1. SkillCad..UK Skills is an organisation which champions skills and learning for work through competitions, awards and events
  2. Draughstman.co.uk...A UK site specially devoted to drawing to UK codes
  3. BSI...British Standards Website
  4. Volvo Drawing Standards......For access to document 101-0005 on European-Standard-based drawing procedures
  5. Volvo Weld Symbols/Procedures.....For access to document 180-0001 on European-Standard-based Weld Symbols
  6. Volvo Geometrical Tolerancing...For access to document 112-0003 on geometrical tolerancing and 112-0004 on measuring principles
  7. The Design Process...A review of the design process including drawing examples.( Not BS 8888 )
  8. Drawing Tools...Notes on Drawing using CoralDraw
  9. Cadalot...Lots of Advice and Lessons from a Drawing expert
  10. PMPA...Precision Machined Products Association designer's guide- (American)
  11. Graphic Symbols For Diagrams...Very Useful article on the problem of diverse symbols in different countries/industries)
  12. Metrication.com..Information on metric drawing and other metric subjects
  13. CAD drawing 2..Middle East Dep of Tchnology - Useful drawing guide with some drawing examples. (Mixture of ISO an ANSI
  14. Kelsey Park School-symbols ..A UK school website with electrical symbols

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Last Updated 27/11/2008

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