Source: https://tendernation.io/opportunities/01a13c60-524d-7007-a5e3-e2f63caf683c/methods-to-determine-high-efficiency-particulate-air-hepa-filter-ageing-and-cu awarded GB restricted procedure # Methods to determine High Efficiency Particulate Air (HEPA) filter ageing and cumulative effects of Dispersed Oil Particulate (DOP) testing on filter performance [Health & Safety Executive](https://tendernation.io/buyers/health-safety-executive) Estimated value £57,725 Published 29 Jun 2020 Deadline Closed 2 Mar 2020 ## Who can bid - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. ## About this tender ONR is seeking to engage one of the Technical Support Contractors (TSC) appointed on Lot 2 of its Technical Support Framework. ONR requires a TSC who can provide technical support to the ONR research project with regard to HEPA filter ageing and degradation. The work shall be delivered through a phased approach as it is recognised that the output of each phase may result in scope changes. Phase 1 - Research review: determine development in the causes of HEPA filter ageing and degradation. Phase 2 - Research review: determine developments in HEPA filter mechanical resilience/robustness. Phase 3 - Design/technology study of in-situ testing methods of HEPA filter mechanical integrity. ## CPV classification Research and development services and related consultancy services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/d6ffb4b2-f544-4239-99c3-3d244016e66e) 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 Health & Safety Executive: past awards and live tenders](https://tendernation.io/buyers/health-safety-executive) [Sector More Research & development tenders](https://tendernation.io/sectors/research-development) ## More tenders like this [Research and development services and related consultancy services – procedura aperta finalizzata ALLA conclusione DI UN accordo quadro PER l’affidamento del servizio DI clinical research organization (cro) relativo a studi clinici promossi DA ASST degli spedali civili DI brescia PER UN periodo DI 72 mesi. · Asst Degli Spedali Civili di Brescia · 42 days left · 30 Nov 2026](https://tendernation.io/opportunities/01a15183-534f-73ea-874d-7960e59dff63/italy-research-and-development-services-and-related-consultancy-services-pro) [Research and development services and related consultancy services – Begleitforschung Städtebauförderung - Wissenstransfer: Anwendungsleitfaden des Bundes zur Praxis Städtebauförderung · Bundesinstitut für Bau-, Stadt- und Raumforschung (BBSR) im Bundesamt für Bauwesen und Raumordnung (BBR) · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a15183-4375-730a-9135-c6d6d211cb68/germany-research-and-development-services-and-related-consultancy-services-b) [Research and development services and related consultancy services – 12Δ/2026 Παροχή Υπηρεσιών τριών (3) Βοηθών Τηλεεξυπηρέτησης Κοινού για τις ανάγκες Τηλεφωνικής Υποστήριξης και Εγγραφής του Κοινού στο Μητρώο Κατόχων Κάρτας Φιλάθλου του ΚΟΑ · Κυπριακός Οργανισμός Αθλητισμού · 18 days left · 6 Nov 2026](https://tendernation.io/opportunities/01a15183-1019-70c9-b80f-3949ad56b848/cyprus-research-and-development-services-and-related-consultancy-services-12) [Research services – KPN/26/2026 „Porosty torfowisk karkonoskich” · Karkonoski Park Narodowy z siedzibą w Jeleniej Górze · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-0b2a-7284-8532-6039b444a4ff/poland-research-services-kpn262026-porosty-torfowisk-karkonoskich) [Research and development services and related consultancy services – Forschungsprojekt - DZSF - Mobilitätskettenanalyse - Wie Verkehrsdaten den ländlichen Schienenverkehr stärken können · Eisenbahn-Bundesamt · 100 days left · 27 Jan 2027](https://tendernation.io/opportunities/01a15183-2140-73b5-8807-5ad43f7122d9/germany-research-and-development-services-and-related-consultancy-services-f) [Research and development services and related consultancy services – Świadczenie usług eksperckich – wybór 3 ekspertów medycznych w dziedzinie: geriatrii, gastroenterologii, hepatologii; Części 1÷3. · Ministerstwo Zdrowia · 11 days left · 30 Oct 2026](https://tendernation.io/opportunities/01a15183-65a8-7184-9dc2-fe80dcb43625/poland-research-and-development-services-and-related-consultancy-services-sw)