Chemicals, Refined Products, Aromatics, Gasoline

January 27, 2025

Platts clarifies Singapore gasoline test methods

HIGHLIGHTS

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Platts, part of S&P Global Commodity Insights, would like to clarify that effective Feb. 10, Platts will include gasoline test methods associated with the gasoline parameters found in the Asia-Pacific and Middle East Refined Oil Products Methodology and Specification guide for FOB Singapore 92 RON, 95 RON and 97 RON, and 91 RON non-oxy assessments.

Platts is including these test methods for gasoline amid strong interest from market participants for additional clarity around test methods. Platts would like to remind participants that test methods for quality should be mutually agreed between counterparties, and recommended test methods stated in the Platts Methodology and Specification guide do not reflect an exhaustive list of all test methods deployed in the wider market.

Details of the test methods to be included for Singapore gasoline are as follows:

Property Unit FOB Singapore 92 RON, 95 RON, 97 RON specifications FOB Singapore 91 RON non oxy specifications Test Methods
Research Octane Number (RON) - Min 92, Min 95, Min 97 Min 91 ASTM D-2699
Motor Octane Number (MON) - - Min 81 -
Lead content gPb/l Max 0.013 Max 0.013 ASTM D-5059 / ASTM D-3237
Density@15°C g/ml Min 0.72 Report ASTM D-1298 / ASTM D-4052
Reid Vapor Pressure psi Max 9.0 Max 9.0 ASTM D-323 / ASTM D-5191
Distillation - - - ASTM D-86
Initial Boiling Point °C Report Report -
10% evaporated °C Max 74 Max 65 -
50% evaporated °C Min 80, Max 127 Min 74, Max 115 -
90% evaporated °C Max 190 Max 183 -
Final Boiling Point °C Max 215 Max 215 -
Residue % vol Max 2.0 Max 2.0 -
Loss % vol Max 2 Max 2 -
Odor Marketable Marketable -
Existent gum mg/100 ml Max 4 Max 4 ASTM D-381
Benzene content % vol Max 2.5 Max 1 ASTM D-5580
Sulfur % wt Max 0.005 Max 0.0015 ASTM D-4294 / ASTM D-5453 / ASTM D-2622
Doctor Test - Negative Negative ASTM D-4952 / IP 30
or Mercaptan sulfur wt. ppm Max 15 Max 15 ASTM D-3227
Mercaptan sulfur % wt Max 0.0015 Max 0.0015 -
Copper corrosion (3 hours at 50°C) - Max 1 Max 1 ASTM D-130
Induction period minutes Min 240 Min 360 ASTM D-525
Oxygenates content % vol Max 14.0 (of which maximum MTBE content of 10.0) Nil ASTM D-4815
Oxygenates as contaminants % vol NA Max 1.0 ASTM D-4815
Aromatics % vol Max 40 17-42 ASTM D-1319 / ASTM D-5580
Olefins % vol Max 25 Max 18 ASTM D-1319
Color - Undyed, colorless to light yellow Undyed -
Alcohol - No additions of any alcohol No additions of any alcohol ASTM D-4815
Metallic Additives - None added None added ASTM D-3831
Acetone ppm Max 100 Max 100 ASTM D-4815

Platts will continue to monitor evolving test methods to make necessary updates where relevant.

Platts would also like to remind market participants that the Market on Close assessment process for Singapore refined products calls for best practices in all aspects of quality and operational performance.

For further details please refer to the Methodology and Specification guide here: /content/dam/spglobal/ci/en/documents/platts/en/our-methodology/methodology-specifications/Asia-refined-oil-products-methodology.pdf (opens in a new tab).

Please send any feedback or comments to asia_products@spglobal.com and pricegroup@spglobal.com.

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make comments not marked as confidential available upon request.