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V-18 (rev. 4) Selection of Volume Correction Factor Tables and Mean Density Values for Some Common Products

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Date: 2001-10-22
Bulletin: V-18-E (rev. 4)
Category: Volume
Supersedes: V-18-E (rev. 3)
Document(s): W&M Regs. sections 270

1.    This bulletin provides an index of the volume correction factor (VCF) tables. The table includes mean density values for several common liquids. Additionally it states Measurement Canada's policy regarding the use of mean densities and actual product densities.

2.    For the purposes of performing volume correction on liquids being sold or offered for sale to end consumers (retail sales), traders and devices shall use the appropriate mean average density found in column 2 of Table 1. For the purpose of SVM 2 part 14, printed tickets must show either the mean average density or the common product name.

3.    Actual product densities may be used to perform volume correction of liquids in all trade transactions other than those noted in item two, (retail sales to end users). Where a trader wishes to use the actual density of the product, appropriate means to determine the density must be used. Such means may include, but not be limited to, thermometers, hydrometers, pycnometers and scales, densitometers and Coriolis meters. For the purpose of SVM 2 part 14, printed tickets must show the actual density used to perform the volume correction.

3.1 In all cases where density measurements are performed, trained personnel shall follow documented test procedures. The actual density value determined must be within the density range for each product name as stated in Table 1.

4. The temperature correction of chemical products should reference the appropriate Measurement Canada volumetric bulletin.

5. Subject to subsection 270(1)(a)(i) of the Weights and Measures Regulations this bulletin also provides extrapolated volume correction factors for use during the temperature compensation of gasoline and diesel fuels with densities of 730 kg/m3 (Table 2) and 840 kg/m3 (Table 3).

6. Revisions

The purpose of revision 1 was to include the volume correction tables for gasoline and diesel oil.

The purpose of revision 2 was to change the values of the mean density and density range for some of the products and to reference new bulletin numbers.

The purpose of revision 3 was to correct some mistakes in the tables.

The purpose of revision 4 is to identify the conditions of using the actual product density for temperature correction purposes.

7. For additional information regarding this bulletin, please contact the undersigned.

Dennis Beattie, C.E.T.
Senior Program Officer
Volumetric Measurement