Tapered candles and irregularly shaped decorative candles which are either hand dipped or molded are exempt from the requirements of § 500.7 of this chapter which specifies that the net quantity of contents shall be expressed in terms of count and measure (e.g., length and diameter), to the extent that diameter of such candles need not be expressed. The requirements of § 500.7 of this chapter for these candles will be met by an expression of count and length or height in inches.