Propagates the uncertainty of environmental conditions measurements
to estimated values of air densities calculated using the function
airDensity() with models 'CIMP2007' y 'CIMP.approx'
function. Uncertainty arising from to the chosen model itself is
considered. Calculations are made according to the
Guide to the Guide to the expression of uncertainty
in measurement (GUM, JCGM, 2008) as implemented
by the package metRology (Ellison, 2018).
uncertAirDensity(model = "CIMP2007", Temp = 20, p = 1013.25, h = 50,
u_Temp = 2.9, u_p = 10.1, u_h = 11.3, unitsENV = c("deg.C", "hPa",
"%"), plot = TRUE, printRelSD = TRUE)model to use for air density calculation.
Must be one of 'CIMP2007' (default),
'CIMP.approx' or 'Jones1978'. See See Details for references.
ambient temperature in weighing room.
barometric pressure in weighing room.
relative humidity in weighing room.
standard uncertainty of temperature measurement
standard uncertainty of barometric pressure measurement
standard uncertainty of relative humidity
character vector of length three with the units of
p, Temp and h.
Default is c('deg.C', 'hPa', '%'). See unitsENV below for more options.
logical. If TRUE (the default), the relative
uncertainty contributions are shown in a barplot.
Logical. If TRUE (the default), a short
statement indicating relative standard uncertainty
of the air density estimation is printed.
A numeric value of standard uncertainty of calculated air density in \(g~cm^{-3}\).
Temperature units (Temp) can be either 'deg.C'
(for Celsius degrees) or 'K'.
Pressure units (p) can be any of 'mmHg',
'Pa', 'hPa' or 'kPa'.
Relative humidity (h) can be expressed as
fraction ('frac') or as percentage ('%').
A typical arrangement for the parameter unitsENV
would be c('deg.C', 'hPa', '%').
Picard, A; Davis, R S; Gl<U+00E4>ser, M; Fujii, K (2008). Revised formula for the density of moist air (CIPM-2007). Metrologia, 45(2), 149<U+2013>155. doi:10.1088/0026-1394/45/2/004
Harris, G. (2019). Selected Laboratory and Measurement Practices and Procedures to Support Basic Mass Calibrations. SOP 2 - Recommended Standard Operating Procedure for Applying Air Buoyancy Corrections. National Institute of Standards and Technology (NIST). doi:10.6028/NIST.IR.6969-2019
BIMP JCGM (2008) Evaluation of measurement data <U+2014> Guide to the expression of uncertainty in measurement.
Stephen L R Ellison. (2018). metRology: Support for Metrological Applications. R package version 0.9-28-1. https://CRAN.R-project.org/package=metRology
# NOT RUN {
uncertAirDensity(model = 'CIMP2007',
Temp = 20, p = 1013.25, h = 50,
u_Temp = 0.29, u_p = 1.01, u_h = 11.3)
# }
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