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I have C71X07: Cu Sn Pb Zn Ni Fe Mn As Sb C71X07 83.66 6.1 4 5.2 0.51 0.08 0.01 0.2 0.22 I have other BNF standards, but not any on your list. Matthew Ponting BA PhD FSA RACOM – ERC funded research project Senior Lecturer in Archaeological Materials Archaeology, Classics and Egyptology The University of Liverpool 12/14 Abercromby Square Liverpool L69 1WZ Tel: 0151-794-4393 From: Arch-Metals Group <[log in to unmask]> On Behalf Of Benzonelli, Agnese Sent: 28 October 2021 11:02 To: [log in to unmask] Subject: BNF standard composition Dear all, Does anyone have the composition/certificates of these BNF standards? Cupro-Nickel: C62X07 Cupro-Nickel: CN1C Cupro-Nickel: CN5B Gun metal: C71X07 Gun metal: GM3A Nickel-silver: C65X17 Thank you and best wishes, Agnese -- Dr. Agnese Benzonelli Technician in archaeomaterials preparation and analysis UCL Institute of Archaeology 31-34 Gordon Square London, WC1H 0PY ________________________________ To unsubscribe from the ARCH-METALS list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=ARCH-METALS&A=1 ######################################################################## To unsubscribe from the ARCH-METALS list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=ARCH-METALS&A=1 This message was issued to members of www.jiscmail.ac.uk/ARCH-METALS, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/