Find the most up-to-date version of ASTM D at Engineering ASTM D + REDLINE: 06ANDARD TEST METHOD FOR RESEARCH OCTANE NUMBER OF SPARK-IGNITION ENGINE FUEL – INCLUDES STANDARD +. Research Octane Number Standard ASTM D (98); EC Number: ; find Sigma-Aldrich-CRMORGA MSDS, related peer-reviewed papers, technical.
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This standard is also available to be included in Standards Subscriptions. Link to Asttm This link will always route to the current Active version of the standard.
ASTM D2699 – 17
Typical commercial fuels produced for spark-ignition engines rate in the 88 to Research O. The sample fuel knock intensity is compared to that of one or more PRF blends. A NIR measurement requires a asttm light source, a means of selecting the desired wavelengths from the light source, an enhanced silicon detector to measure the light before and after it illuminates the product and a built-in microprocessor system to convert the detector output to octane rating.
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Testing of gasoline blend stocks or other process stream materials can produce ratings at c2699 levels throughout the Research O. To perform a test, just pour ml of gasoline or diesel in the supplied sample container 75 mm optical path length and place it in the instrument.
If the document is revised or amended, you will be notified by email. The sample fuel is tested using a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of operating conditions.
In unleaded gasoline, the light is absorbed at specific known wavelengths. Typical commercial fuels produced for spark-ignition engines rate in the 88 to Research O.
Testing of gasoline blend ast or other process stream materials can produce ratings f2699 various levels throughout the Research O. The tester can be calibrated for ten fuels or substrates and measures all grades of unleaded gasoline.
He background signal is sampled both before and after the dual-direction absorption spectra of the sample.
The standardized CFR engine measurements continue to be in inch-pound units only because of the extensive and expensive tooling that has been created for this equipment. We have no amendments or corrections for this standard. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
The test does not require advanced training and can be completed in less than 20 seconds vs. The values in parentheses are sstm historical inch-pound units.
Active view current version of standard. Add to Alert PDF. As the voice of the U. You may delete a document from your Alert Profile at any time. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Values of k 1k 2and k 3 vary with vehicles and vehicle populations and are based on road-O.
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The antiknock index of a fuel approximates the Road octane ratings for many vehicles, is posted on retail dispensing pumps aastm the U. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Research O.
Such measurements do not require sample preparation and do not damage the sample being measured. A number of controlled field trials, comparative tests and commercial experience confirm that the ZXC is providing a safe indication of the octane rating of unleaded motor fuels and of the cetane rating of all diesels. The sample d269 knock d299 is compared to that of one or more PRF blends. Results are traceable to official knock engine laboratory.
The values in parentheses are the historical inch-pound units.
ASTM D – Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel
Caution should be taken when handling mercury and mercury containing products. The sample fuel knock intensity is compared to sstm of one or more PRF blends. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. The sample is not damaged in any way and can be either used for retest or for other purposes. However, this test method may not be applicable to fuel and fuel components that are primarily oxygenates.