SM88 METHOD OF CHEMICAL CARGO WEIGHT 2009

METHOD OF CHEMICAL CARGO WEIGHT I.. Used Temperature Correction factor 2.. Used Density correction factor II... [Cargo Grade Setting] [Result Picture of above formula: TEMPERATURE CORR

METHOD OF CHEMICAL CARGO WEIGHT

I METHOD

1 Used Temperature Correction factor

2 Used Density correction factor

II FORMULA

1 TEMPERATURE CORR

VCF = (Cargo’s temp – 15℃) x Temp.corr.factor -1

Metric Ton = VCF x Vol(m3) x Density(In Air)

2 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

TEC TDV

[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