[Header] Format=SMU ver=3 appl=GUMWB32 MR=0 FUEB=0 [Title] Title='Uncertainty of Simple Weighing' Description=8 Description[0]='The following uncertainty sources are taken into account:' Description[1]='' Description[2]='1. Repeatability of the balance' Description[3]='' Description[4]='2. Drift of the balance' Description[5]='' Description[6]='3. Readability of the display of the balance (the readability of the balance is' Description[7]='0.1 mg)' [Model] Model=1 CE=1 CTC=1 Model[0]='m = m_rep + m_drift + m_read;' [Components] CompOrder=3 Comp=4 Comp[0]=m Comp[1]=m_rep_ Comp[2]=m_drift_ Comp[3]=m_read_ [Correlations] Description=0 [COMP 0] Type=Result Definition='mass of the sample' Unit='g' Description=0 Fcov=2 NomUnit= UncUnit= CovID=0 UncID=0 Vnom=0.324 Ustd=0.000207525098883645 Neff=33 HB=1 HC=0 HR=1 IO=0 [COMP 1] Type=TypASum Definition='value of the mass together with repeatabiloty component of uncertainty' Unit='g' Description=5 Description[0]='This uncertainty estimate was obtained in our lab for our balance. It refers to' Description[1]='tared weighing (that is: takes the taring operation into account), so the' Description[2]='repeatability of taring neednot be included separately. The users are strongly' Description[3]='recommended to determine the repeatability experimentally for their own' Description[4]='balance.' Vnom=0.3240 Ustd=0.00017 Neff=15 [COMP 2] Type=TypBRectang Definition='drift component of uncertainty of mass' Unit='g' Description=4 Vnom=0 Hlim=0.0002 Description[0]='This uncertainty estimate was obtained in our lab for our balance. It refers to' Description[1]='tared weighing (that is: takes the taring operation into account), so the drift' Description[2]='of taring neednot be included separately. The users are strongly recommended to' Description[3]='determine the drift experimentally for their own balance.' [COMP 3] Type=TypBRectang Definition='readability component of uncertainty of mass' Unit='g' Description=1 Vnom=0 Hlim=0.00005 Description[0]='This uncertainty is plus-minus half of the last digit.'