Part 1 Compliance and validation in spectrophotometry: approaches to the validation of spectrophotometers, C. Burgess; global harmonisation of spectrophotometric standards, D.J. Porter; advances in spectrophotometric transfer standards at the national physical laboratory, J.F. Verrill; compliance in spectrometry - quality assurance of spectrophotometric measurements at NIST, J.J. Hsiah et al. Part 2 Advances in spectrophotometric measurements: reference instruments for spectrophotometry at NPL, G.H.C. Freeman; development of a new reference spectrofluorimeter, J.C. Zwinkels and D.S. Gignac; development of a new reference spectrofluorimeter at the national physical laboratory, J.F. Verrill and D.C. Williams; new instrumentation development at the national institute of standards and technology for spectral diffuse reflectance and transmittance measurement, L.M. Hanssen; neutral density filter measurements at the national institute of standards and technology, T.R. Gentile et al; evaluation of the long-term repeatability of reflectance spectrophotometers, D.C. Rich et al; the realisation and dissemination of UV source measurement scales in the UK, R. Lambe and T. Goodman; reflectance spectrophotometry - balancing diffuse and specular components, H. Hemmendinger. Part 3 Instrument manufacturerers' approaches to compliance: performance validation in UV-VIS and fluorescence spectroscopy - it meets specification but does it work?, J. Monti and J. Casciero; criteria and procedures in quality assurance to validate UV/VIS and UV/VIS/NIR spectrometers, W. Bohme et al; calibration and validation of spectrophotometers - a vendor's view, T. Klink; modern instrument design in assisting with compliance to regular standards, J.P. Hammond. Part 4 Advances in fluorescence techniques: bioluminescent determination of ATP using the perkin-elmer LS-50B and luminometer accessory, S.R. Huckins and J.L. Taylor; near IR fluorescence - instrumentation, application and pitfalls, R.J. Obremskih et al; long wavelength fluorescence spectroscopy, J.N. Miller; blood flow measurements using fluorescent microspheres, R.W. Glenny; acetylcholinesterase inhibition via a series of polyacene spectroscopic probe molecules - an example of integrated probe management techniques, J.L. Taylor et al. Part 5 Advances in spectrometry: the application of hadamard masking for multi-dimensional studies in the visible and near infrared spectral regions, W.G. Fateley et al; laser based spectrometry, N.P. Fox et al; calibration of line width standards and lamp intensities using FT UV, A.P. Thorne; diode array process instrumentation for the near IR, J. Workman; charge-coupled device based fluorescence detection in capillary electrophoresis, J.V. Sweedler et al; stray light performance of UV multichannel spectral measuring instruments, E.G. Arthurs et al; design and performance of a narrow band global UV-B radiometer, M.C. Beaubien and A.F. Beaubien.