Source: https://tendernation.io/opportunities/01a13c82-2f92-7178-8ec3-527dfd5c7d61/purchase-of-aerosol-mass-spectrometer-quadrapole-acsm-pm25 awarded GB direct award procedure Suitable for SMEs # Purchase of Aerosol mass spectrometer - Quadrapole ACSM (PM2.5) [Defra Network eTendering Portal](https://tendernation.io/buyers/defra-network-etendering-portal) Often single bidder Estimated value £162,000 Published 18 Nov 2021 Deadline Closed 20 Oct 2021 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The EA, on behalf of DEFRA, manage a series of Air Quality Networks, the operation of which is contracted out to Contractors. One of the contracts is known as the Particle Concentration and Numbers Network which is to provide Particulate Speciation size and numbers at key urban and rural 'supersites' to inform policy development and science, including one specific element of the Air Quality 2008 Directive regarding Particulate Matter. The Contract has been in existence for approximately 19 years although has evolved to include different sites and types of sampling regarding ambient particulate. The DEFRA Policy team have identified a need to measure organic PM speciation work at a rural site in the PCN Network (Chilbolton) and asked the EA AQ Contract Managers to find a suitable equipment to carry out this work. The network contractor at the National Physical Laboratory who operate the network along with Imperial College London have reviewed the market and proposed the ACSM (Aerosol Chemical Speciation Monitor) system, which measures quantitative particle mass loading and chemical composition in real-time for non-refractory aerosol. It works by an aerosol inlet, particle sizing, vaporisation, ionization and then mass analysis to individually identify PM (Particulate Matter) species. The instrument is only available to purchase from the US manufacturer Aerodyne. Contract forms using the Agency terms and conditions summarising the quote provided by ACSM is as below, and the option for the sampling and dryer system will be required, as well as the aerosol generator and UPS. We will state that payment is on delivery by March 2022 to utilise this year's budget. Courier transport fee will be around £1000 for the equipment to be delivered to the Air Quality station. The running costs of the equipment will be covered by the Revenue contact for the PCN network. Read full description ## CPV classification Air quality management Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/e47b246b-e262-496b-b62d-94b357084e74) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Defra Network eTendering Portal: past awards and live tenders](https://tendernation.io/buyers/defra-network-etendering-portal) [Sector More Sewage, refuse, cleaning & environmental tenders](https://tendernation.io/sectors/sewage-refuse-cleaning-environmental) ## More tenders like this [SHWD Cleaning · South Hams District Council · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a15552-1e5c-7112-a772-bb30d175a2ae/shwd-cleaning) [Pest Control Services · Yorkshire Housing Limited · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15552-1ecb-72eb-99a2-28725729b3f4/pest-control-services) [Pest Control Services Concession 2027-30 (FH2610191) · The District Council of Folkestone and Hythe · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a154e4-44f9-7309-afae-daba3a678a46/pest-control-services-concession-2027-30-fh2610191) [Invitation to Tender Window Cleaning Services - Wirral · Wirral Community Health and Care NHS Foundation Trust · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a1539a-cf1d-702b-9ffd-93cfa91d3c7c/invitation-to-tender-window-cleaning-services-wirral) [Refuse transport services – Odbiór odpadów komunalnych z terenu miasta Maków Mazowiecki · Miasto Maków Mazowiecki · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15183-3f12-7325-9c2f-18eb44993615/poland-refuse-transport-services-odbior-odpadow-komunalnych-z-terenu-miasta) [Cleaning services – Úklidové služby pro budovy JP · České vysoké učení technické v Praze · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-4b75-72e0-8073-c7b65b5d95d9/czechia-cleaning-services-uklidove-sluzby-pro-budovy-jp)