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Asphalts: Chemical Analysis
PRI provides a wide variety of testing and evaluation protocols to determine various chemical properties of asphalt and bitumen.

Most chemical analysis complement and/or supplement physical and performance property requirements and specifications.

Chemical analysis provides an excellent means to determine possible contamination, and the qualitative or quantitative presence of modifers and additives. Chemical analysis is also a valuable tool in forensic and failure investigations.

Additionally, chemical properties are determined to address environmental, health and safety needs.

A partial list of the more common requested tests is displayed below. Other testing protocols are available; inquire if the specific test or property is not listed.
Individual Test Methods or Properties Test Method
Acid / Base # ASTM D 664; Acid Number of Petroleum Products by Potentionmetric Titration

Acidity / Alkalinity ODOT (Draft)

Acidity / Alkalinity CO DOT

Anti-Stripping Additive in Asphalt State DOTs IT-99-08; Idaho Standard Method of Test for Detection of Anti-Stripping Additive in Asphalt

Anti-Stripping Additive in Asphalt ID DOT IT-99; Detection of Anti-Stripping Additive in Asphalt

Anti-Stripping Additive in Asphalt ID DOT IT-99; Detection of Anti-Stripping Additive in Asphalt

Asphaltenes, % KS DOT 1007; Pentane Insolubles

Asphaltenes, (Heptane & Pentane Precipitation) UOP 614 (Heptane)/ 99 (Pentane); TM for Insoluble Matter in Oils

Asphaltenes,% ASTM D 3279; n-Heptane Insolubles (also other solvents)

Auto Ignition ASTM E 659; Auto-Ignition Temperature of Liquid Chemicals

Bases, Neutrals & Acids EPA 1311/8260; Test Method for Determining TCLP Volatiles

Carbonyl Index ASTM E 1252; General Techniques for Obtaining Infrared Spectra for Qualitative Analysis

Chloride Content ASTM D 4294 (Modified)

Contaminate Fractions ASTM D 7213; Boiling Range Distribution of Petroleum Distillates in the Boiling Range from 100 to 615 °C by Gas Chromatography

Corrosion Resistance (Copper) ASTM D 4048; Detection of Copper Corrosion from Lubricating Greases

EDSI (inorganics) ASTM E 1508; Quantitative Analysis by Energy-Dispersive Spectroscopy

Gel Permeation Chromatography ASTM E 1252; General Techniques for Obtaining Infrared Spectra for Qualitative Analysis

Heat of Combustion / Heating Value ASTM D 240; Heat for Combustion of Liquid Hydrogen Fuels by Bomb Calorimeter

Metals (8 RCRA metals) EPA 1311/6010; Test Method for Determining 8 RCRA TCLP Metals

Metals (Ni, Va, Fe) ASTM D 5708; Determination of Nickel, Vanadium and Iron in Crude Oils and Residual Fuels by Inductively Coupled Plasma (ICP) Atomic Emission Spectroscopy

PAH’s EPA 1311/8270; Test Method for Determining TCLP Bases, Neutrals, and Acids

Paraffin Content EN 12606; Test Method for Determination of Paraffin Wax Content

SARA Analysis by Iatroscan ASTM D 4124; Seperation of Asphalt into Four Fractions (asphaltenes, saturates, naphthene aromatics, and polar aromatics)

SBS Content by FT-IR PRI TM-031; Quantitative Analysis of Asphalts for Styrene-Butadiene Styrene Copolymer (SBS) by FT-IR

SBS Identification PRI Infrared Analysis

Volatiles EPA 1311/8260; Test Method for Determining TCLP Volatiles

Wax Content UOP 46; TM for Paraffin Wax Content of Petroleum Oils and Asphalts
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