1. 2) ISO 8712-2017, Petroleum products - Fuels (class F) - Specifications of marine fuels
2. 3) DNV GL, Maritime forecast to 2050 - Energy Transition Outlook 2019, (2019)
3. 4) JIS K2215-1993
4. 5) CIMAC Recommendation No. 29, MEDIUM SPEED ENGINES 2nd UPDATED VERSION 2008', (2008)
5. 6) CIMAC Recommendation No. 31 Draft, The Lubrication of Two-Stroke Crosshead Diesel Engine’ by CIMAC WG8 ‘Marine Lubricants', (June 2017)