1.
Gambica Association
National organisation representing the interests of companies in the instrumentation, control, automation and laboratory technology industry in the UK.
2.
Gambica Association
National organisation representing the interests of companies in the instrumentation, control, automation and laboratory technology industry in the UK.
3.
Gambica Association
National organisation representing the interests of companies in the instrumentation, control, automation and laboratory technology industry in the UK.
4.
www.gambica.org.uk/pdfs/G54-1.pdf
5.
Gambica Association
National organisation representing the interests of companies in the instrumentation, control, automation and laboratory technology industry in the UK.
6.
Managing Harmonics, A guide to ENA Engineering Recommendation
7.
8.
9.
10.