Andrew is a Senior Technologist responsible for all types of work carried out within the Product Performance Team. He is involved with routine fitness for purpose testing as well as more complex and bespoke testing and also the failure analysis of all types of glass samples. One of his major strengths is in reviewing reports generated by other members of the team with a strong focus on accuracy and precision of results and on the quality of all work carried out within the department.
He also carries out failure analysis on all types of glass items, in-particular architectural flat glass. This work can be laboratory based but also involves on site, in-situ examinations and occasionally working at height to enable access to external, high-level glazing.
Andrew is an expert is in the analysis of “unidentified” fragments found in all different types of products, to determine their most likely source. These are predominantly glass fragments, however some samples submitted as glass fragments are, in fact, hard plastics. This type of work involves using several different examination and analytical techniques depending on the features of the sample in question. It also involves detailed comparisons with comparator samples, when these are available, to determine whether the comparator is a likely source of the fragment or fragments. This can include measurement and comparison of the refractive indices of glass fragments and comparator samples to confirm or rule out potential sources.
Andrew is trained to write measurement routines on our Quick Vision Active (QVA), a Mitutoyo Vision Measuring System. This measurement apparatus enables the automated dimensional measurement on large sample numbers and is covered by our ISO 17025 accreditation. The use of this system saves time and resource on jobs where manual measurements take a significant amount of time and/or where the number of samples is vast. The QVA system is fitted with a touch-probe accessory which means it can be used as a physical Co-ordinate Measurement Machine (CMM). Whilst the measurements using this accessory are un-accredited, this can be useful for investigating specific issues a customer may be experiencing, such as sink and bulge measurements on a bottle label panel.
Prior to joining Glass Technology Services, Andrew was a Forensic Scientist at the Forensic Science Service (FSS). He worked within the Analytical Services Department for over eleven years, analysing and interpreting a number of different evidence types, with a particular focus on glass. This work involved the compositional analysis and comparison of glass samples recovered from suspects with control samples taken from the crime scene, including interpretation of the results obtained. Similar work was also carried out on other evidence types, namely: fibres, metals, lubricants, plastics & polymers, paint and particulate matter. During his time at the FSS Andrew specialised in two main analytical techniques, Scanning Electron Microscopy with Energy Dispersive X-Ray Spectroscopy (SEM-EDS) and Fourier Transform Infra-Red (FTIR) Spectroscopy. Andrew continues to utilise both techniques at Glass Technology Services.