1. Scope

1.1 This test method covers the determination of the amount of bromine-reactive material in aromatic hydrocarbons. It is usually applied to materials having bromine indexes below 500.

Note 1-Other test methods for determining bromine-reactive material are Test Methods D1159, D1491, D2710, and D5776.

1.2 this test method has been found applicable to aromatic hydrocarbons containing no more than trace amounts of olefins and that are substantially free from material lighter than isobutane and have a distillation end point under 288 ^o C.

1.3 The following applies to all specified limits in this standard: For purposes of determining conformance with this standard, and observed value or a calculated value shall be rounded off 'to the nearest unit' in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

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 and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement see Section 8.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D891 Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals

D1159 Test Method for Bromine Numbers of Petroleum Distillates and Commercial Aliphatic Olefins by Electrometric Titration

D1193 Specification for Reagent Water

D1491 Test Method for Test for Bromine Index of Aromatic Hydrocarbons by Potentiometric Titration

D2710 Test Method for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration

D3437 Practice for Sampling and Handling Liquid Cyclic Products

D3505 Test Method for Density or Relative Density of Pure Liquid Chemicals

D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

D5776 Test Method for Bromine Index of Aromatic Hydrocarbons by Electrometric Titration

D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

Keywords

aromatic hydrocarbons; bromine index; bromine-reactive; coulometric titration; titration;

ICS Code

ICS Number Code 71.080.15 (Aromatic hydrocarbons)

DOI: 10.1520/D1492-02

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