I found this document which is a good start. There are no universally correct conversion factors for waste - what is most important is that year on year the same conversion factors are used. General Waste The most popular volume to weight conversion factor, and that used for the waste mapping exercise, is the industry standard: l 40 kg per cubic metre There were concerns however that, because this is an industry standard across all sectors from catering to construction, it may prove too heavy for FHEI use. Recent analysis of 6 months* pay-by-weight data from Leeds Metropolitan and Bradford for their general waste has revealed that the average weight disposed of from 1100 litre bins is 45.77 kg. This equates to 41 kg per cubic meter for HE general waste (generally excluding paper and card). Therefore it would seem based on initial data, that the industry standard is acceptable for estimating the majority of general waste streams in the sector. Regards Steve Vincent-Marshall MBIFM Estates Manager Barton Peveril College >>> Carol Waterhouse <[log in to unmask]> 7/29/2011 2:39 pm >>> I have sent a query to IPD to see how they want us to complete this section when we only have volumes, but no response to date! [cid:image003.png@01CC4DFD.649060F0] Carol Waterhouse Head of Finance, Funding & Resources NEW College, Park Lane, Pontefract West Yorkshire, WF8 4QR t: 01977 702139 e: [log in to unmask]<mailto:[log in to unmask]> From: FE Estates and Facilities Managers [mailto:[log in to unmask]] On Behalf Of Gael Burns Sent: 29 July 2011 14:05 To: [log in to unmask] Subject: Waste Weight Dear colleagues I am trying to complete my emandate return and I am struggling on our waste weight. Does anyone know how heavy waste is in a 1100L wheelie bin? Regards Gael Burns Facilities Manager, BSc (Hons) Somerset College, Taunton Direct tel: 01823 366494 Fax: 01823 366755 Mob: 07796 266 213 E-mail: [log in to unmask]<mailto:[log in to unmask]> Web Site: www.somerset.ac.uk<http://www.somerset.ac.uk> STOP! Do you really need to print off this e-mail? Be Green - Keep it on the screen Somerset College of Arts & Technology is protected by:- McAfee Antivirus Suite and GFI MailEssentials Spam & Content Filtering. This Message has been scanned for viruses. ________________________________ This message is confidential. You should not copy it or disclose its contents to anyone. You may use and apply the information only for the intended purpose. Internet communications are not secure and therefore NEW College, Pontefract does not accept legal responsibility for the contents of this message. Any views or opinions presented are only those of the author and not those of NEW College. If this email has come to you in error please delete it and any attachments. Please note that NEW College may intercept incoming and outgoing e-mail communications. ---------------------------------------------------------------------------------------------------------------------------------------- This message is sent in confidence for the addressee only. It may contain confidential or sensitive information. The contents are not to be disclosed to any one other than the addressee. Unauthorised recipients are requested to preserve this confidentiality and to advise us of any errors in transmission. Barton Peveril College reserves the right to monitor emails as defined in current legislation, and regards this notice to you as notification of such a possibility. ----------------------------------------------------------------------------------------------------------------------------------------