The new seventh edition of BiH standard BAS EN 589:2025, Automotive fuels – LPG – Requirements and test methods, has been published. This standard has been adopted by translation of the European standard EN 589:2024, Automotive fuels – LPG – Requirements and test methods, and is issued in a bilingual version in Serbian and English.

This standard specifes requirements and test methods for marketed and delivered automotive liquefied petroleum gas (LPG),with  LPG defined as a low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011, 1075, 1965, 1969 or 1978 only and which consist mainly of propane, propene, butane, butane isomers, butenes, with traces of other hydrocarbon gases.

LPG is a highly volatile hydrocarbon liquid that is normally stored under pressure. If the pressure is released large volume of gas will be produced which form flammable mixtures with air over the range of approximately 2 % (V/V) to 10 % (V/V). This standard involves the sampling, handling and testing of LPG. Naked flames, unprotected electrical equipment and electrostatic hazards, etc are sorces of ignition for LPG.

In addition, LPG is heavier than air and accumulate in cavities and enclosed spaces, creating a risk of asphyxiation when high concentrations are inhaled. LPG in liquid form can cause frostbite (cold burns) to the skin; national health and safety regulations apply.

The main technical changes compared to the previous version:

-        change of vapour pressure requirement, increase of minimum vapour pressure

-        change of limit value for 1,3-butadiene, to < 0.10 % (m/m).

The standard was prepared within the scope of the Technical Committee BAS/TC 11 – Petroleum and petroleum products, which is responsible for standardization in the field of petroleum, petroleum products and related fuels.