Published date: 25 November 2021
Awarded contract - This means that the contract has been awarded to a supplier.
Contract summary
Industry
Air quality management - 90731100
Location of contract
Any region
Value of contract
£268,390 to £277,755
Procurement reference
tender_286416/1016975
Published date
25 November 2021
Closing date
10 November 2021
Closing time
12pm
Contract start date
11 November 2021
Contract end date
31 March 2022
Contract type
Supply contract
Procedure type
Single tender action (below threshold)
A direct contract with a single supplier, without competition.
This procedure can be used for procurements below the relevant contract value threshold.
Contract is suitable for SMEs?
Yes
Contract is suitable for VCSEs?
No
Description
The SMPS (Scanning Mobility Particle Sizer) is used to measure aerosol concentration and aerosol particle size distribution. The system comprises of an Electrostatic Classifier (EC), a Differential Mobility Analyser (DMA), a Condensation Particle Counter (CPC), and an Aerosol Neutraliser.
They have been identified needing replacement in 2021-22 because there are no longer spare parts available from the manufacturer, and they are nearing the end of their useful life. They are difficult to communicate with as the technology for their communication systems is out of date and cannot be upgraded. We would not be compliant if they fail completely with Current UK Air Quality Legislation, which asks for information on the total mass concentration of particulate matter, and also for the purpose of the European Monitoring and Evaluation Programme (EMEP - part of the Convention on Long Range Transboundary Air Pollution (CLRTAP) which requires monitoring of particle number concentration).
In addition to the replacement of the components, a new sampling system is also required with driers and splitters that will replace the current system. Historically the old system has not performed and data capture loss is high. Additional a Butanol stripper will be purchased that will improve the life of the pump and minimise risks to the site users as Butanol will no longer be at risk of 'leaking' from the outlet pipes that should be vented outside the cabin, as it will be stripped as part of the sampling process. This has historically caused unwelcome smells for site users and interfered with other measurements.
The National Monitoring -Contracts, Monitoring Survey Team manage the Operational contracts on behalf of DEFRA on the PCN (Particle Size and Concentration) Network run by NPL (National Physical Laboratory) and Imperial College London - who will be able to deliver their management contract with the new equipment to a higher standard and with far less data loss than currently.
The upgrade is also well time for a change in the standard monitoring CEN standard which will result in a change of 'cut off' from 7nm to 10nm for measurements. The replacement will be for all 3 existing locations. Only TSI currently offer this new CEN Condensation Particle Counter component complies with CEN/TS 16976 and another Differential Mobility Analyser component complies with ISO 15900:2020.
Award information
Awarded date
10 November 2021
Contract start date
11 November 2021
Contract end date
31 March 2022
Total value of contract
£268,390
This contract was awarded to 1 supplier.
TSI Instruments Limited
Address
Stirling Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3ST
Reference
No reference - sole trader
Supplier is SME?
No
Supplier is VCSE?
No
About the buyer
Contact name
Sarah-Ann Miles
Address
17 Nobel House
London
SW1P 3JR
England
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Closing: 10 November 2021, 12pm
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