[Header]
Format=SMU
ver=3
appl=GUMWB32
MR=0
FUEB=0

[Title]
Title='Uncertainty of 50 ml volumetric flask volume'
Description=8
Description[0]='The following components of uncertainty are taken into account:'
Description[1]=''
Description[2]='1. Tolerance of the volume as specified by the manufacturer (Type B)'
Description[3]=''
Description[4]='2. Uncertainty due to the filling repeatability (Type A)'
Description[5]=''
Description[6]='3. Uncertainty of the volume due to temperature difference from 20 °C'
Description[7]=''

[Model]
Model=10
Model[0]='{ Volume of the flask'
CE=1
CTC=1
Model[1]='   The voulme is expressed as sum of three components. The V_tol carries the value together with calibration uncertainty.'
Model[2]='   The two other components carry only uncertainties, their values are set to zero.'
Model[3]='}'
Model[4]=''
Model[5]='V = V_tol + V_repeat + V_temp;'
Model[6]=''
Model[7]='{ Uncertainty of the flask volume due to temperature difference from 20 °C }'
Model[8]=''
Model[9]='V_temp = V_tol * \gamma\ * \Delta\t;'
Model[10]='V_temp = V_tol * \gamma\ * \Delta\t;'

[Components]
CompOrder=3
Comp=6
Comp[0]=V
Comp[1]=V_tol_
Comp[2]=V_repeat_
Comp[3]=V_temp_
Comp[4]=\gamma\
Comp[5]=\Delta\t

[COMP 0]
Type=Result
Definition='Volume of the 50 ml flask'
Unit='ml'
Description=0
Fcov=2
NomUnit=
UncUnit=
CovID=0
UncID=0
Vnom=50
Ustd=0.0669925368977769
Neff=10000
HB=1
HC=0
HR=1
IO=0

[COMP 1]
Type=TypBRectang
Definition='Value of the volume together with tolerance uncertainty contribution'
Unit='ml'
Description=0
Vnom=50.00
Hlim=0.06

[COMP 2]
Type=TypBRectang
Definition='Uncertainty contribution of the volume due to repeatability'
Unit='ml'
Description=4
Vnom=0
Hlim=0.09
Ustd=0.005347
Neff=9
Description[0]='The uncertainty of ±0.09 corresponds to the uncertainty of plus minus 3 drops.'
Description[1]='With 50 ml volumetric flask this is a reasonable filling uncertainty estimate.'
Description[2]='With larger volumetric flasks that have thicker necks, the filling uncertainty'
Description[3]='can be even larger. Also this depends very much on the worker.'

[COMP 3]
Type=Temp
Definition='Uncertainty contribution of the volume due to temperature difference from 20 °C'
Unit='ml'
Description=0
Vnom=0
Hlim=
Fcov=2
NomUnit=
UncUnit=
CovID=0
UncID=0
Ustd=0.0242487113059643
Neff=10000
HB=0
HC=0
HR=0
IO=0

[Correlations]
Description=0

[COMP 4]
Type=Const
Definition='Thermal expansion coefficient of water'
Unit='1/°C'
Description=0
Vnom=0.00021

[COMP 5]
Type=TypBRectang
Definition='Difference of liquid temperature from 20 °C'
Unit='°C'
Description=3
Vnom=0
Hlim=4
Uexp=5
Fcov=1.96
Description[0]='In our lab it is reasonable to assume that the temperature does not differ from'
Description[1]='20 °C by more than 4 degrees. The users are advised to substitute this estimate'
Description[2]='by one that is obtained in their lab.'