Hi Stephan Thanks for the quick reply
There are issues which we are having to overcome with respect to a competent persons/persons being able to review all our procedures and ensure that our Risk Assessments and Method Statements (RAMS) are all correct and the process is safe To be honest there is little specific information in the UK on C02 bubbles/tents and with Rentokil being the only UK company we are required to use their products and technical expertise and experience. We do not have the complete knowledge in my organisation to sign off these RAMS so we will be bring in an external consultant Im on a team working on the Biocides derogation for Nitrogen use which is the preferred option not least that it is a lot safer, but we have a purpose built nitrogen chamber on site and post Brexit might be in a position to challenge the UK regulation What about your choices of what cannot be frozen? schoene gruesse Ps your English is prefect! Adie From: pestlist@googlegroups.com <pestlist@googlegroups.com> On Behalf Of Stephan Biebl Sent: 10 December 2020 13:30 To: pestlist@googlegroups.com Subject: [PestList] AW: C02 bubbles for Pest Treatment Hi Adie, in the past, I worked as professional many years with Nitrogen and CO2 in flexible tents, chambers, shipping containers or bubbles in Germany and Austria, but I had never seen a professional portable CO2 chamber in this time. Just one professional company in Germany (see report 2005) used in the past one self-made trailer with portable Nitrogen-chamber, till the N2-biocide-disaster started. I could imagine, that this type of trailer will be tight enough for CO2. With CO2-fumigation of shipping containers you could have luck with new sealings at the doors or bad luck with tiny leaks at the floor or walls. Than you need a lot of CO2-gas-cylinders over the time. What about the EU-biocide-registration from Rentokil CO2 Controlled Atmosphere as insecticide till 31.10.2022. After the Brexit you could use CO2 without this problem I think. The handling of CO2 with leaks is quite more dangerous than Nitrogen, if you use it in big bubbles or close rooms. And you have to ensure, that the moisture inside the chamber should not be higher than 60%, because of risks with carbon-acid on materials/pigments. Otherwise CO2 is still effective against all stages of insects like Nitrogen. Regards and always sorry for my English Stephan Stephan Biebl IPM-Consultant and Expert for Museumpests Ingenieurbüro für Holzschutz 83671 Benediktbeuern Germany www.holzwurmfluesterer.de<http://www.holzwurmfluesterer.de> Von: 'Adrian Doyle' via MuseumPests <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Gesendet: Donnerstag, 10. Dezember 2020 10:50 An: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> Betreff: [PestList] C02 bubbles for Pest Treatment Morning pesty people from another cold and soggy Britain. I wanted to share a few questions and knowledge about treatment selection for museum objects and anyone who is willing to help us would be recognised in our documents as a thank you as well as a professional acknowledgement. 1. Is anyone aware of a situation where a portable C02 chamber has been used and was available for hire similar to a lorry mounted freezer unit? We need to use Co2 because we do not have the use of Nitrogen here in the UK and we are exploring options for a bubble in a museum store but preferably outside for H&S reasons. Unfortunately, the C02 company here do not have lorry mounted chambers. 1. We are reviewing what we consider to treat by C02 because freezing is not considered safe and would be happy to share our lists for comment and use examples which support our decision making. In particular we are reviewing the safe to freeze lists and any additional precautions we need to make for specific object types I know all of us have a must not freeze lists, but the more I investigate, the more variety I find regards Adie Mr Adrian (Adie) Doyle Integrated Pest Management Manager British Museum Property & Facilities Management Great Russell Street, London WC1B 3DG Current work pattern (subject to change) Monday – WFH Tuesday – Blythe House Store/WFH Wednesday – WFH Thursday – Orsman Road Store/WFH Friday – Bloomsbury Email: ado...@britishmuseum.org<mailto:ado...@britishmuseum.org> The British Museum Great Russell Street, London WC1B 3DG britishmuseum.org<https://gbr01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.britishmuseum.org%2F&data=02%7C01%7C%7C7a9ff9c7e2464696ab3908d7629aa629%7Ca7f588e4c7964ce2b525daac11557e97%7C0%7C0%7C637086288666858073&sdata=FVkPCmec5C%2BmguWcS52ubg0CqaXxxfIrpeEoFIPj4Z0%3D&reserved=0> The security classification for this message is OFFICIAL Please see our privacy policy<https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.britishmuseum.org%2Fabout_this_site%2Fterms_of_use%2Fprivacy_policy.aspx&data=02%7C01%7C%7C7a9ff9c7e2464696ab3908d7629aa629%7Ca7f588e4c7964ce2b525daac11557e97%7C0%7C0%7C637086288666858073&sdata=yo3WGYN18NLhIEgWwe1fgs0yqoBQJQi3IcLhtPreutc%3D&reserved=0> for more details about how we use your personal data and about your rights or contact the Museum’s Data Protection Officer at i...@britishmuseum.org<mailto:i...@britishmuseum.org>, telephone 020 323 8000 -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. 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