Technical Guidelines

The ISA-UK Powered by the BSGA Technical Guidelines provide a definitive source of information on every aspect of signmaking and are an invaluable tool for every signmaker. The guides have been produced over a great many years and are constantly updated and upgraded by the Technical Committee and its advisors.

Here, in this section, we provide a synopsis of the contents. Full contents are available to members only and can be accessed, as downloadable PDFs, in the secure Members Area of this site. If you are a Member of the ISA-UK , please log in to access and download the Technical Guidelines of your choice.

A. General

A1: ISA-UK Obligations of membership

A2: Acknowledgements

A3: Glossary of terms

B. Commercial factors
B1: Investment Cost – Purchase or Lease

B2: Forms of Sub-contract

B3: Terms and conditions of sale

B4: Insurance

B5: Model Maintenance Agreement

B6: Maintenance Price Index

B7: Bribery Act 2010 – A Practical Guide

B8: BSGA Recommended Code of Practice for Internet Auctions

B9: Construction Industry Scheme (CIS) Guidance Notes

C. Sign design
C1: The sign function… concepts and types

C2: Design considerations

C2.1: Legibility

C2.2: Internal illumination

C2.2 (a) Box signs

C2.2 (b) Letters and logos

C2.2 (c) Light Emitting Diodes (LED)

C2.3: External illumination (floodlighting)

C2.3 (a): General criteria

C2.3 (b): Compact luminaires

C2.3 (c): Slim luminaires

C2.3 (d): Linear reflectors

C.4: Animation

C2.5: Structural design

C2.5 (a): Poles and structures

C2.5 (b): Acrylic panel structural design

C2.5 (c): Retaining plastic sign panels

C2.6 Electrical design

C2.7: Cold Cathode lighting design

C2.8: Fire safety design

C2.9: RNIB Series

C2.9a: Signage (this is an RNIB document)

C2.9b: Lighting (this is an RNIB document)

C2.9c: Visual Contrast (this is an RNIB document)

C3: Variable Information Signs

C4: LED guideline – A history and guide to the development and correct use of LEDs within  the Sign Industry

C5: LED Flexface Report – LED back lighting of flexface signs as an alternative to fluorescent tubes

D. Materials
D1.1: Metals, types and sources of information

D1.2: Plastics materials, types and sources of information

D1.2 (a): Rigid plastics materials

D1.2 (b): Flexible plastics materials

D1.3: Wood and wood laminates

D2: Fabrication

D2.1: Cutting and routing

D2.2: Fixing methods

D2.2 (a): Adhesives and sealants

D2.2 (b): Fastenings

D2.3: Soldering and welding

D2.3 (a) Welding of metals

D2.3 (b): Welding of plastics materials

D2.3 (c): Soldering

D2.4: Finishing processes

D2.4 (a): Corrosion

D2.4 (b): Pre-treatment, lead coating and galvanising

D2.4 (c): Anodising

D2.4 (d): Powder coating

D2.4 (e): Finish coating

D2.5: Vinyl graphics

D2.5 (a): Types of vinyl sheet

D2.5 (b): Working with vinyl sheet

D2.6: Signwriting

D2.7: Engraving

D3: Light sources

D3.1: Cold-cathode tubes

D3.1 (a): Types and characteristics

D3.1 (b): Pumping

D3.1(c): Operation of cold-cathode tubes

D3.2: Hot-cathode fluorescent lamps (MCF) and their control gear

D3.3: Lamps other than MCF lamps and their control gear

D3.4: Fluorescent lamps; (a) Mercury reduction, (b) Amalgam lamps (LIF Technical Statement 24)

D3.5: Starting of discharge tubes and starting aids

E. Control gear for light sources
E1: Ballasts for cold-cathode tubes

E1 (a): High-voltage transformers

E1 (b): High-frequency ballasts

E2 Control gear and wiring of fluorescent lamps in box signs

E3: Suppression of interference

E4: Lamps and control gear operating at medium voltage

E5: High-frequency luminaires (LIF Technical Statement 15)

E6: Use of high-frequency ballasts in outdoor signs

F. Installation and maintenance
F1: Access equipment

F2: Sign installation and fixing

F3: High-voltage installations

F4: Active protection

F5: Mains-supply wiring

F6: Sign fixing to cladding panels

F7: Sign fixings

F8: Sign fixing to Wall Panels

G. Health and safety
H. Quality assurance
H1: BSGA quality guidelines – SUSPENDED PENDING REVIEW


J. Waste management and environmental matters
J1: Waste management

J2.1: Disposal of lamps (LIF Technical Statement 10)

J2.2: Disposal of mercury

J3: Photo-biological impact of ultraviolet and visible radiation (LIF Technical Statement 8)

J4: Removal of waste from installation sites

J5: Enhanced Capital Allowances

K. Legislation and standards
K1.1: The Control of Advertisements Regulations (England)

K1.2: The Control of Advertisements Regulations (Wales)

K2: The brightness of illuminated advertisements (ILE Report N05)

K3: British Standard BS EN 50107: ‘Signs and luminous-discharge-tube installations operating from a no-load output voltage exceeding 1,000 V but not exceeding 10,000 V’

K3.1: A Guide to British Standard BS EN 50107

K4: British Standard BS 559: ‘Specification for the design, construction and installation of signs’

K4.1: A guide to British Standard BS 559

K5: British Standard BS EN 50143: ‘Cables for signs and luminous-discharge-tube installations operating from a no-load output voltage exceeding 1 kV but not exceeding 10 kV’

K5.1 Guidance notes on BS EN 50143 DEC 2016

K6: British Standard BS 7671: ‘The IEE Wiring Regulations’

K6.1: A Guide to British Standard BS 7671

K7: British Standard BS 4533 (EN 60598): ‘Luminaires’ (i.e. low-voltage signs)

K7.1: A Guide to British Standard BS 4533 (EN 60598)

K8: Fire Regulations

K9: A guide to the Electricity at Work Regulations

K10: CE marking

K10.1: Technical documentation supporting a CE mark

K10.2: A guide to the Electromagnetic Compatibility Directive (EMCD)

K10.3: A guide to the Low Voltage Directive (LVD)

K11: The Construction (Design and Management) Regulations

K12: British Standard BS EN 60529: ‘Degrees of protection provided by enclosures (IP code)’

K12.1: A guide to British Standard BS EN 60529

K13: British Standard BS 6399: ‘Loading for buildings’ Part 2: ‘Code of practice for wind loads’

K13.1: A guide to British Standard BS 6399, Part 2

K14: European voltage harmonisation (LIF Technical Statement 15)

K15: Use of energy efficient ballasts

K16: Measurements Units Style Guide

K17: Construction Industry Scheme (CIS) Guidance Notes
This Guideline is now published under Section B – Commercial Factors and renumbered B9: Construction Industry Scheme (CIS) Guidance Notes.

K18: Vehicle Wrapping