Certificate of Calibration No

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1 Schweizerische Confederation Confederazione Confederaziun Eidgeno5senschaft suisse svizra Federal Department of Justice alld Police FDJp Federal Office of Metrology METAS Certificate of Calibration No Object Order Applicant Traceability Date of Calibration Swiss Committee Kilogram 1 kg Kilogramme Conforme a la Loi du 18 Germinal an 3, presente Ie 4 Mess an 7. Fortin F Brass, in a leather box Historical comparison of mass and conventional mass in the context of the exhibition: Ferdinand Rudolf Hassler ( ) - Swiss Pioneerfor US Surveying, Mapping and Standards, to be presented at METAS, July 8 - August 11, Federal Office of Metrology METAS Lindenweg 50 CH-3003 Bern-Wabern The reported measurement values are traceable to national standards and thus to internationally supported realizations of the SI-units Marking CH-3003 Bern-Wabern, 08 May 2007 For the Measurements Section Mechanics 7 /;f-2t k:crav' Stefan Russi Dr Henri Baumann, Head of Section ~ Mutual recognition 1.- This certificate is consistent with Calibration and Measurement Capabilities (CMCs) that are included in Appendix C CIPMMRA of the Mutual Recognition Arrangement (MRA) drawn up by the International Committee for Weights and Measures. Under the MRA. all participating institutes recognize the validity of each other's calibration certificates and measurement reports for the quantities, ranges and measurement uncertainties specified in Appendix C (for delails see This document may ~ot be published or forwarded other than in futl >I' "IT'" Lindenweg,0, CH-J003 Bern-Wabern, Tel. +4' J1 3' 33 lll.

Fortin F Brass, in a leather box Historical comparison of mass and conventional mass in the context of the exhibition: Ferdinand Rudolf Hassler (1770-1843) - Swiss Pioneerfor US Surveying, Mapping

2 Schweizeri,che Eidger1o$sertschaf l COl1f~d~ratiol1 sui,se Confede.razior1e Confederaziun 5vizra Extent of the Calibration The mass and conventional mass of the Committee Kilogram has been determined, in accordance to the International Recommendation OIML R 111-1, 'Weights of classes E" E 2, F l, F 2, M l, M l _2, M 2, M 2 _3 and M 3 ", edition 2004 (OIML: International Organization of Legal Metrology). Measurement procedure The mass and conventional mass of the Committee Kilogram was determined on the mass comparator M_One, by comparison with METAS reference standards sets number 4, number 14 and number 336 by substitution weighing. Picture 1: Committee Kilogram inside the primary Mass Comparator of Metas This document may nm be published or forwarded other then in full, 215 M"''' Undenweg 50, CH-lDO} Bern-Wobem, T.L +4'l' 3. 33"'

'Weights of classes E" E 2, F l, F 2, M l, M l _2, M 2, M 2 _3 and M 3 ", edition 2004 (OIML: International Organization of Legal Metrology).

3 Schweizerische Eidgenossenschaft Confederation suisse ConfecJerazione Svizzer(l Confederaziun svizra Picture 2: Committee Kilogram within its original protection case Picture 3: Imprint at the bottom of the weight ThiS document may not be published or forwarded other than in full "IT" Linoenweg So, CH-JooJ Bern-Wabern, Tel. +4' 3' J~13 " I, ch

Picture 3: Imprint at the bottom of the weight ThiS document may not be published or

4 Schweizerische Confederation Conlederazione Conlederaziun Eidgenossenschaft suisse svizra Picture 4: Engraved label on the top of the leather coated container TillS document may no! be pubhslled or kl1wardedotl\er than in full '" "IT" Undenweg So, CH'3003 Bern.Waber1l. Tel. "-4' 3' "'.

$be pubhslled or kl1wardedotl\er than in full '" "IT" Undenweg So, CH'3003$

5 Schweizerische Eidg 1105S 115chaft Confederatiol1 suisse Confederazione Svizzeril Confederaziun svizril Measurement conditions The average ambient conditions during the measurement Air temperature: (20.39± 0.02) C. Air density: (1.111± 0.003)kg/m' were the following: Measurement results After having applied the air buoyancy correction to each series of substitution weighings, the following values for the mass deviation and for the conventional mass deviation has been evaluated: Nominal Identification Mass value deviation Conventional Uncertainty of Density mass deviation measurement (kg/m') 1 kg Uncertainty of Measurement The reported uncertainty of measurement is stated as the combined standard uncertainty multiplied by a coverage factor k = 2. The measured value (y) and the associated expanded uncer~ tainty (U) represent the intelval (y ± U) which contains the value of the measured quantity with a probability of approximately 95%. The uncertainty was estimated following the guidelines of the ISO. The measurement uncertainty contains contributions originating from the measurement standard, from the calibration method, from the environmental conditions and from the object being calibrated. The long-term characteristic of the object being calibrated is not included. ThIS document may not be published or forwarded other than in full M'"'' Undel1weg SO.CH.}oo] ~.Wa~rn. T~1.+4']' }2 ]] ch

003)kg/m' were the following: Measurement results After having applied the air buoyancy correction to each series of substitution weighings, the following values for the mass deviation and for the

Calibration Certificate

Calibration Certificate P.O. Box 87-0087 Phone:856-686-1600 Fax:856-686-1601 www.troemner.com e-mail: troemner@troemner.com SECTION 1: Page 1 of 7 Pages SECTION 2: APPROVED SIGNATORY Joseph Moran SECTION 3: PERSON PERFORMING