Section 02.02.14.300 - PETROLEUM PRODUCTS01.Liquefied Petroleum. Liquefied petroleum gas is considered to be a petroleum product and must be sold only by weight or liquid measure as provided in Sections 71-232 and 71-241, Idaho Code, of the Idaho Weights and Measures Law.02.Metering System Installation. A liquefied petroleum gas metering system installation must be complete, that is, so installed to insure that liquefied petroleum gas is maintained in a liquid state while being metered. This includes an adequate means for vapor elimination upstream of meter and a properly installed and functioning differential valve downstream from meter.03.Maintaining Scales. Scales used for liquefied petroleum gas bottle filling must be maintained in an adequate and accurate functioning condition. This means the periodic checking by a competent scale repairman, and checked regularly by your company's serviceman for any foreign material and clearances around lever system and working parts. Scales must be installed so that they are protected against weather effects so that weight value indicating elements can be accurately read.04.Gauge Stick Measurement. Petroleum products are not to be sold by gauge stick measurement.05.Single Meters. Trucks with a single meter which are used to meter oils and gasolines must be calibrated and adjusted on one of the following only: furnace or heating oils, diesel fuels, kerosene and/or high flash solvents.06.Compressed Natural Gas. All compressed natural gas kept, offered or exposed for sale and sold at retail as a vehicle fuel must be measured in terms of mass, and indicated in gasoline gallon equivalent (GGE), diesel gallon equivalent (DGE) units, or mass.07.Liquefied Natural Gas. All liquefied natural gas kept, offered, or exposed for sale and sold at retail as a vehicle fuel must be measured in terms of mass, and indicated in diesel gallon equivalent (DGE) units, or mass.Idaho Admin. Code r. 02.02.14.300