(1) The sale of petroleum products shall include on the sales statement a definite, plain, and conspicuous declaration of:
(a) The quantity of goods sold;
(b) The weight or basis for measurement of either gross volume or volume adjusted to standard temperature of sixty degrees Fahrenheit.
Source: L. 73: p. 1068, � 6. C.R.S. 1963: � 100-2-33.