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

[Title]
Title='Uncertainty of 10 ml pipette volume'
Description=11
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'
Description[3]=''
Description[4]='2. Uncertainty due to the repeatability of pipetting'
Description[5]=''
Description[6]='3. Uncertainty of the volume due to temperature difference from 20 °C'
Description[7]=''
Description[8]='The calculation assumes that the pipette has been decently cleaned, that is no'
Description[9]='droplets are formed on the inner surface of the pipette after draining the'
Description[10]='liquid.'

[Model]
Model=10
Model[0]='{ Volume of the pipette'
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]=''
CE=1
CTC=1
Model[7]='{ Uncertainty of the pipette volume due to temperature difference from 20 °C }'
Model[8]=''
Model[9]='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 10 ml pipette'
Unit='ml'
Description=0
Fcov=2
NomUnit=
UncUnit=
CovID=0
UncID=0
Vnom=10
Ustd=0.0438579525285894
Neff=72
HB=1
HC=0
HR=1
IO=0

[COMP 1]
Type=TypBRectang
Definition='Value of the volume together with tolerance uncertainty'
Unit='ml'
Description=0
Vnom=10.000
Hlim=0.03

[COMP 2]
Type=TypASum
Definition='Repeatability uncertainty component of the volume'
Unit='ml'
Description=4
Vnom=0
Ustd=0.04
Neff=50
Description[0]='We estimate here that the repeatability standard uncertainty of pipetting is'
Description[1]='0.4% of the pipette volume. We have found in our lab that this is a safe'
Description[2]='estimate. The users are recommended to substitute this estimate by real data'
Hlim=0.04
Description[3]='obtained in their labs.'

[COMP 3]
Type=Temp
Definition='Temperature component of the uncertainty of the volume (Uncertainty of the volume due to temperature difference from 20 °C)'
Unit='ml'
Description=0
Fcov=2
NomUnit=
UncUnit=
CovID=0
UncID=0
Vnom=0
Ustd=0.00484974226119286
Neff=10000
HB=0
HC=0
HR=0
IO=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 the liquid temperature from 20 °C'
Unit='°C'
Description=3
Vnom=0
Uexp=5
Fcov=1.96
Hlim=4
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.'

[Correlations]
Description=0