Notepad++ v8.4.7 general terms basic DCCWiki mass terms mass DKD Expert report DE en en PTB-abcde 17 calibrationLaboratory 1.81-17.xyz Reference No. 2017-04-23 2017-04-25 laboratory 2017-04-26 manufacturer SiQPkg_02_a Serial No. 1 Silicon sphere to 1 kg Case The mass standard is accommodated in a transport container; the calibration mark is applied to the container. Physikalisch-Technische Bundesanstalt (PTB) Working Group 5.56 Manufacturing Technology manufacturer sphere Form manufacturer silicon Material Nominal mass 1 \kilogram Physikalisch-Technische Bundesanstalt (PTB) Working Group 1.81 Realization of Mass Bundesallee 100 38116 Braunschweig DE Vorname1 Name1 true Vorname2 Name2 Physikalisch-Technische Bundesanstalt (PTB) Working Group 1.15 Metrology in Weighing Technology Bundesallee 100 38116 Braunschweig DE PTB is the National Metrology Institute and the supreme technical authority of the Federal Republic of Germany for metrology. It meets the requirements for calibration and testing laboratories as defined in DIN EN ISO/IEC 17025. The results refer only to the object calibrated in this DCC. The measurement results are valid at the time of calibration. The applicant is responsible for arranging a recalibration in due time. Measurement results Measurement uncertainty The uncertainty stated is the expanded measurement uncertainty obtained by multiplying the standard measurement uncertainty be the coverage factor k = 2. It has been determine in accordance with JCGM 100:2008. The value of the measureand then normally lies, with a probability of approximately 95 %, with th eatrributed coverage interval. JCGM 100:2008 Procedure for mass calibration The calibration ensued through comparison with the reference standards of PTB using the substitution method with air buoyancy correction. Reference standards of PTB temperature temperature min 294.00 \kelvin 0.02 2 0.95 20.85 \degreecelsius temperature max 294.01 \kelvin 0.02 2 0.95 20.86 \degreecelsius relative humidity humidity min 0.435 \one 0.01 2 0.95 humidity max 0.438 \one 0.01 2 0.95 air pressure Air pressure min 100804 \kilogram\metre\tothe{-1}\second\tothe{-2} 6 2 0.95 1008.04 \milli\bar Air pressure max 100818 \kilogram\metre\tothe{-1}\second\tothe{-2} 6 2 0.95 1008.18 \milli\bar Volume from referenced calibration certificate Volume calibration certificate dated 2017-04-11 1.82-2017 qwe-1 analogue analogue 0.00042935318 \metre\tothe{3} 0.00000000050 2 0.95 Reference temperature 293.15 \kelvin 20 \degreecelsius Measuring result nominal value 1 \kilogram mass 0.999997191 \kilogram 2018-02-26T12:18:38 0.000000030 2 0.95