Petroleum Products QC

Has Aviation fuel specification IS 1571  kept pace with International fuel specifications ?  The latest Indian Jet A-1 specification IS 1571 -2017, ninth version is just out couple of months back.   It is aligned   with earlier version of British defence standard Def Stan 91 -091 (Issue 7 of 2011, 3 rd amendment 2015), Aviation Fuel Quality Requirements for Jointly Operated System (AFQRJOS-Issue 28 March 2015) and ASTM D 1655-15c.   The major difference from earlier eight version of IS 1571: 2008   is given in blog  https://rjpatelioc-petroleum.blogspot.com.au/2018/03/jet-1-aviation-fuel-specification-is.html Further developments have taken place in base document after 2015 and International specifications are revised as follow: - Def Stan 91 -091 -  Issue 8 of 26/08/2016 (not implemented),  Issue 9 of 03/10/2016 - AFQRJOS - Issue 29 – Oct 2016  -  ASTM 1655 -  2015d, 2016a, 2016b,2016c, 2017, 2017a, 2018 ...

Jet A-1  Aviation Fuel Specification IS 1571 in India & Its historic Development The first Indian Standard IS – 1571 Jet A-1  specification published in 1960  was based on British Ministry of Defence Specification D.E.R.D. 2482/2494,  it covered two grades K-40 and K-50. Since then Nine Revisions have been published till date and latest Revision is now align with  UK DEF STAN 91-91 Issue 7 of 2011- amendment 3, 2015 and also to include the Government of India Defence requirements of Silver Strip corrosion. Assistance has also been derived from ASTM D 1655-15c, Aviation Fuel Quality Requirements for Jointly Operated System (AFQRJOS-Issue 28 March 2015). The need for International coordination among recognized standard of other countries on the subject is particularly significant for the product of this type since re-fueling of aircraft in different countries is often involved Indian JET A–1  AVIATION TURBINE FUELS, KEROSENE TYPE, JET A-1 — SP...

- Myth of  Not to fill gasoline (petrol) tank full in summer For the last couple of years, a message has been circulating in the name of Indian Oil Corporation Limited, warning people not to fill petrol up to the maximum limit in Car/two-wheelers, as there could be explosions as due to the heat .  Even some newspaper also further spread such news. Irony is we accept what we read without applying our mind and simply forward such msgs further to friends and relatives in social media considering their safety.  Explosion due to heat requires three things – fuel, suitable temperature or spark and oxygen (air) to support it. (The auto Ignition temperature  of Gasoline (Petrol) is  about  250 °C which is highly unlikely in normal weather conditions).   Indian Oil has denied the rumour and issued following clarification “ It is perfectly safe to fill the fuel in vehicles up to the limit (max.) as specified by the manufacturer irresp...

Myth – Condensed water gets accumulated in Gas (Petrol) tank of the vehicle Facts – True and False. It depends on how much water. Water in fuel tank either remain at the bottom of the fuel tank or remain mixed with petrol in same liquid phase.  It is important to know whether the petrol contain any alcohol or it is alcohol free. Water is almost non-miscible with pure petrol hydrocarbons. Condensed water will be accumulated slowly in Vehicle Gas tank at bottom  if petrol does not contain any alcohol (Ethanol, Methanol etc).  Many countries now commonly use Petrol mixed with say 5 to 20 percent of Ethanol/Methanol.  Any water condensation happening in fuel tank will immediately be absorbed in such fuel because of alcohol and thus remain in fuel phase and will go out to engine and ultimately out of vehicle exhaust.   Condensation takes place as air gets sucked in fuel tank as the fuel is pumped out when engine is on and also due to day night temper...

11/11/2017 - rjpatelioc_Petroleum - blog posts upto Jun2017 Rjpatelioc        https://rjpatelioc-petroleum.blogspot.in/ Author's Profile Petroleum QC Blog,  posts upto 11 Nov 2017. 26/06/2017 - LPG, CNG, LNG, NGL, PNG - Petroleum terms understanding https://rjpatelioc-petroleum.blogspot.in/2017/06/lpg-cng-lng-ngl-png-petroleum-terms.html There is no doubt tomorrow's energy needs will be totally derived from nature that's Solar, Wind and Hydro however, may be before this now is the time of Gas fuels for next two decades at least. Every day we hear petroleum terms like LPG, CNG, LNG, NGL, PNG etc and get rather confuse   22/06/2017 - Myth - Flash point test methods are designed for kerosene contaminated with Gasoline ... part 10 of X   Facts – False.   Standard test methods ASTM D56, ASTM D93, IP 170 etc are prepared for Kerosene samples which are not contaminated with Gasoline/Naphtha. http...

-  LPG, CNG, LNG, NGL, PNG  -  Petroleum terms understanding  There is no doubt tomorrow's energy needs will be totally derived from nature that's Solar, Wind and Hydro however, may be before this now is the time of Gas fuels for next two decades at least. Petroleum Industry has already stepped in Gas age from liquid age fuels.  CNG/LPG has taken over role of Gasoline/diesel as auto fuels.  CNG/LNG has replaced Naphtha, Diesel, Residual Fuel Oil etc in electric generating power plants and other industry as fuel replacement.  Kerosene in kitchen is being replaced by LPG which is further replaced by PNG in cities. Every day we hear petroleum terms like LPG, CNG, LNG, NGL, PNG etc and get rather confused. This post is therefore created, without using high technical terms, for layman primarily now. I am sure this will help in knowing these petroleum terms and enhance understanding of fuels better. The following table is a...