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Significance and Use
5.1 This test method provides a measure of trace amounts of unsaturated hydrocarbons in petroleum distillates boiling up to 288 °C (550 °F). An estimate of the quantity of these materials is useful in assessing the suitability of the lighter fractions for use as reaction solvents.
1.1 This test method covers the determination of the amount of bromine-reactive material in petroleum hydrocarbons and is thus a measure of trace amounts of unsaturates in these materials. It is applicable to materials having bromine indexes below 1000.
1.2 This test method is applicable only to essentially olefin-free hydrocarbons or mixtures that are substantially free from material lighter than isobutane and have a distillation end point under 288 °C (550 °F).
Note 1: This procedure has been cooperatively tested on materials with bromine indexes in the range from 100 to 1000. These materials include petroleum distillates such as straight-run and hydrocracked naphtha, reformer feed, kerosine, and aviation turbine fuel.
Note 2: Materials with bromine index greater than 1000 should be tested for bromine number using Test Method /IP 130.
Note 3: Bromine index of industrial aromatic hydrocarbons should be determined using Test Method or . The subcommittee is currently examining ways to achieve more consistent end point values.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1159 Test Method for Bromine Numbers of Petroleum Distillates and Commercial Aliphatic Olefins by Electrometric Titration
D1492 Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric Titration
D5776 Test Method for Bromine Index of Aromatic Hydrocarbons by Electrometric Titration
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code 15101500(Petroleum and distillates)
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ASTM D2710-09(2018), Standard Test Method for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top