SM88 METHOD OF CHEMICAL CARGO WEIGHT 2009

METHOD OF CHEMICAL CARGO WEIGHT I METHOD Used Temperature Correction factor Used Density correction factor II FORMULA TEMPERATURE CORR VCF = (Cargo’s temp – 15℃) x Temp.corr.factor -1 Metric Ton = VCF x Vol(m3) x Density(In Air) DENSITY CORR DENS.OBSD.=(Cargo’s temp - 15℃) x (Density corr.factor/1000) – Density(In Air) Metric Ton = DENS.OBSD x Vol(m3) III FOR EXAMPLE @ PRODUCT : BENZENE A.METHOD USING TEMP.CORR.FACTOR * Typical density 15℃ = 884.2 /1000 = 0.8842 * Density from survey = 0.8842(15℃ in VAC.) – 0.0011(Constant) = 0.8831 (Density in AIR) after or during loading we can found cargo t℃ for example t = 30℃ Volume for example V= 474.741 m3 VCF = (Cargo’s temp – 15℃) x Temp.corr.factor -1 = (30℃ - 15℃) x 0.00119 -1 = 0.98215 (the absolute value) Metric Ton = VCF x Vol(m3) x Density(In Air) = 0.98215 x 474.741 x 0.8831 = 411.760 M/T TDV TEC [Cargo Grade Setting] [Result Picture of above formula: TEMPERATURE CORR] B METHOD USING DENS.CORR.FACTOR * DENS.OBSD.=(Cargo’s temp - 15℃) x (Density corr.factor/1000) – Density(In Air) = (30℃ - 15℃) x (1.05 / 1000) – 0.8831 = 0.86735(the absolute value) * Metric Ton = DENS.OBSD x Vol(m3) = 0.86735 x 474.741 = 411.767 M/T [Cargo Grade Setting] [ Result Picture of above formula: DENSITY CORR.] DCF ... [Cargo Grade Setting] [Result Picture of above formula: TEMPERATURE CORR] B METHOD USING DENS.CORR.FACTOR * DENS.OBSD.= (Cargo s temp - 15℃) x (Density corr.factor/1000)... value) * Metric Ton = DENS.OBSD x Vol(m3) = 0.86735 x 474.741 = 411.767 M/T [Cargo Grade Setting] [ Result Picture of above formula: DENSITY CORR.] DCF