BS EN 15940:2016+A1:2018

What is BS EN 15940- Paraffinic diesel fuel from synthesis or hydrotreatment - Requirements and test methods about?  

BS EN 15940 describes requirements and test methods for paraffinic diesel fuel marketed and delivered as such, and containing a level of up to 7,0 % (V/V) fatty acid methyl ester (FAME)".  

BS EN 15940 is applicable to fuel for use in diesel engines and vehicles compatible with paraffinic diesel fuel. BS EN 15940 defines two classes of paraffinic diesel fuel: high cetane and normal cetane. 

Paraffinic diesel fuel originates from synthesis or hydrotreatment processes. 

NOTE: For general diesel engine warranty, paraffinic automotive diesel fuel may need a validation step to confirm the compatibility of the fuel with the vehicle, which for some existing engines may still need to be done (see also the Introduction to this document). The vehicle manufacturer needs to be consulted before use". 

Who is BS EN 15940- Paraffinic diesel fuel from synthesis or hydrotreatment - Requirements and test methods for? 

is BS EN 15940- Paraffinic diesel fuel from synthesis or hydrotreatment - Requirements and test methods is useful for: 

• Petroleum industry 
• Climate departments 
• Fuel producers 
• Testing houses 

Why should you use is BS EN 15940- Paraffinic diesel fuel from synthesis or hydrotreatment - Requirements and test methods? 

 BS EN 15940 lays down a quality specification for diesel fuel on the basis of synthesis gas or of hydrotreated bio-oils or -fats. Its main use is as diesel fuel in dedicated diesel vehicle fleets and engines.  

There is now a pressing requirement to allow for FAME blend variations of those paraffinic fuels, which are not already classified as being from renewable resources. Blending of paraffinic diesel fuel with fatty acid methyl ester (FAME) is covered in BS EN 15940. 

In BS EN 15940, all relevant characteristics, requirements and test methods are specified. These specifications are relevant for the driveability of the vehicles and are currently known to prevent harm to the vehicles and their powertrains. 

Fuel producers may show that sufficient seizure protection is provided for a given fuel and additive combination and dose rate through an initial series of tests for both SL-BOCLE and HFRR. BS EN 15940 provides guidance on seizure protection. 

BS EN 15940 also helps you with information to be marked and labelling on dispensing pumps and nozzles used for delivering paraffinic diesel fuel, to make marketing and delivery of fuel standardized. 

BS EN 15940 can be usable on a voluntary basis for engine clearance, fuel acceptance and fuelling station allowance, supporting both local regulations and international trade. 

What’s changed since the last update?  

BS EN 15940:2016+A1:2018 supersedes CEN/TS 15940:2012. BS EN 15940:2016+A1:2018 includes some technical changes with respect to CEN/TS 15940:2012. These include: 

• The limits for distillation at 250 °C and 350 °C are included in line with EN 590 and the EU Common Customs tariff for diesel fuel 
• EN ISO 3924, also known as simulated distillation, has been incorporated in Table 1 as an additional methodology to determine distillation characteristics 
• EN 16906 (equivalent to DIN 51733 [22]) has been studied and allowed as an additional methodology to determine cetane number 
•  In order to allow fitness for purpose product and to align it with EN 590 product that has proven functionality in diesel engines, the arctic climate viscosity limits and the distillation recovery at 180 °C have been introduced in Table 3 
• In order to present all relevant requirements within the same fuel specification, the necessary climate dependent properties from EN 590 have been introduced in 5.7; this required reference of some additional test methods in Clause 2