Directed Electronics Automate 210D Instructions d'exploitation télécharger pdf (Page 115)

Formulas Used to Determine the Density

Method

Buoyancy: Wa · (Rhofl – LA)

Rho = + LA

(Wa – Wfl) · Corr

where: Rhofl = density of the liquid causing buoyancy

Wa = weight of the sample in air

Wfl = weight of the sample in liquid

Corr = correction for buoyancy produced by the immersed

wire = 0.99983

LA = density of air = 0.0012 g/cm

Specific

gravity bottle: Wa · (Rhofl – LA)

Rho = + LA

Wfl + Wa – Wr

where: Rhofl = density of the reference liquid

Wa = weight of the sample

Wfl = weight of the reference liquid

Wr = weight of the sample + reference liquid

LA = density of air = 0.0012 g/cm

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Directed Electronics Automate 210D Instructions d'exploitation Page 115