Defra Network eTendering Portal · Awarded contract

Awarded

Replacement of Scanning Mobility Particle Sizer (SMPS) Systems for UK Air Quality Monitoring

Awarded 11 Nov 2021

View live tenders

Awarded11 Nov 2021

Value£268,390.00

SupplierTSI Instruments Limited

AgencyDefra Network eTendering Portal

RegionUnited Kingdom

CategoryResearch & Development

Ended 4y 7mo ago5mo term

Awarded 11 Nov 2021Expired 30 Mar 2022

About

Defra Network eTendering Portal awarded a contract to TSI Instruments Limited for the purchase of Scanning Mobility Particle Sizer (SMPS) systems to replace aging equipment on the Particle Size and Concentration (PCN) Network.

The SMPS measures aerosol concentration and particle size distribution and comprises an Electrostatic Classifier, Differential Mobility Analyser, Condensation Particle Counter, and Aerosol Neutraliser.

The existing units, identified for replacement in 2021-22, lacked manufacturer spare parts, were nearing end of useful life, and had outdated communication systems.

The new equipment ensures compliance with UK Air Quality Legislation and the European Monitoring and Evaluation Programme (EMEP) under the Convention on Long Range Transboundary Air Pollution (CLRTAP).

The contract also includes a new sampling system with driers and splitters, and a Butanol stripper to improve pump life and reduce site risks.

The PCN Network is managed by the National Monitoring Contracts, Monitoring Survey Team on behalf of Defra, and run by the National Physical Laboratory and Imperial College London.

The contract value is £268,390.

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