massStandard: Creates an object of class '"massStandard"'.
In masscor: Mass Measurement Corrections

Description Usage Arguments Value unitsENV References See Also Examples

The object of class "massStandard" contains the calibration information of a mass standard that is used in routine balance verification (e g. to calculate normalized error. See normalizedError()). A version to store information of several mass standards that belong to the same kit is massStandardKit().

massStandard(nominal, convMassCor, uncert, units = c("g", "mg", "mg"),
  serial = NULL, manufacturer = NULL, class = NULL, certificate = NULL,
  traceability = NULL, Temp = NULL, p = NULL, h = NULL,
  unitsENV = c("deg.C", "hPa", "%"), expanded = TRUE, k = 2, rho = 8,
  u_rho = 0.06, unitsrho = "g/cm^3", institution = NULL, date = NULL,
  add.info = NULL, partofakit = FALSE)

`nominal`	nominal mass of the mass standard.
`convMassCor`	conventional mass correction for the mass standard.
`uncert`	standard uncertainty of the conventional mass correction.
`units`	character vector of length 3 with the units of `nominal`, `convMass` and `uncert`, respectively. Default is `c('g', 'mg', 'mg')`.
`serial`	serial number of the mass standard or mass standards kit.
`manufacturer`	character with the manufacturer of the mass standard or mass standards kit.
`class`	character with the claimed class of the mass standard or mass standards kit, according to OIML (2004).
`certificate`	character with the calibration certificate number and date of issue.
`traceability`	character with information regarding the traceability of the calibration.
`Temp`	ambient temperature at the moment of the calibration.
`p`	barometric pressure at the moment of the calibration.
`h`	relative humidity at the moment of the calibration.
`unitsENV`	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.
`expanded`	if `TRUE` (the default), uncertainties provided in `indError` are assumed to be expanded uncertainties, instead of standard uncertainties.
`k`	coverage factor for the expanded uncertainties when `expanded = TRUE`.
`rho`	density of the mass standard.
`u_rho`	Uncertainty in the density of the mass standard.
`unitsrho`	Units of the density of the mass standard. Default is `'g/cm^3'`.
`institution`	character with the identification of the calibration laboratory.
`date`	character with the date of the measurements.
`add.info`	named list or vector with any additional details included in the calibration certificate.
`partofakit`	Logical. Is the mass standard part of kit?

Object of class "massStandard" with the information of a calibrated mass standard.

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', '%').

OIML, (2004). ORGANISATION INTERNATIONALE DE MÉTROLOGIE LÉGALE. International Document OIML R 111: Weights of classes E1, E2, F1, F2, M1, M1–2, M2, M2–3 and M3.

massStandardKit(), normalizedError()

singleMS.E2.10g <- massStandard(nominal = 10, convMassCor = 0.001,
                                uncert = 0.1,
                                units = c('g', 'mg', 'mg'))
print(singleMS.E2.10g)