Test process

Sample collection

Oxford Indices can collect thermal desorption samples on your behalf, or you can take them yourself and send it to Oxford Indices. We will send you everything you need. All you have to do is return them to us for analysis.

Sample integrity

Sample management is an essential part of the quality management system. The following stages need to be considered and managed:

• Collection, labelling, preservation and transport

• Safety practices (leaking or broken containers, contaminated forms, other hazards)

• Evaluating, processing, and tracking samples

• Storage, retention and disposal.

Autosampler

The autosampler is designed to promote accuracy and minimise error offering the highest degree of reproducibility of injected sample volumes and the ability to conveniently run several samples which require identical analysis conditions. Oxford Indices has autosamplers that handle gas, liquid and solid phase samples with techniques such headspace analysis, direct liquid injection and pyrolysis.

Oxford Indices is pleased to support customers who wish to send in samples. We support the process through providing comprehensive information and making sure that appropriate containers and collection supplies are available. A key aspect is an accurate labelling system. All samples received are carefully checked when they arrive.

Wherever physical parameters are critical to the correct performance of a particular test, we shall have access to the relevant measurement standard, as a means of calibration. Measurement standards will be stored and used in a manner consistent with preserving their calibration status. Certificates and other relevant documentation will be stored in such a way as to be readily available until the measurement standards are in use and afterwards, stored for as long as deemed necessary to document the metrological traceability of the measurements linked to them. Checks on the calibration status of the equipment will be performed at regular intervals.