ASTM E202-09 - 1.10.2005
 
Significance and Use

These test methods measure certain chemical and physical properties of ethylene glycols and propylene glycols and may be used to determine compliance with specification in which limits are established for these properties. For those tests that use the procedure of another ASTM test method, that test method should be consulted for additional information on the significance and use of that test.

Alternative test methods and technology for several of the methods can be found in the Appendix. The alternative test methods do not have precision data for the application of these methods in analyzing glycols. Use of these methods is optional and individuals using the alternative methods should assure themselves that the method is sufficiently precise. Precision data presented is only for the original test methods listed.

 
1. Scope

1.1 These test methods cover the chemical and physical analysis of the commonly available grades of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, and dipropylene glycol. The key sections appear in the following order:

Sections
Purity of Reagents
Specific Gravity
Distillation Range
Acidity
Water
Iron
Color
Gas Chromatographic Analysis

1.2 Review the current appropriate Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.

1.3 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.

 
2. Referenced Documents

D891-18

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

D5386-16

Standard Test Method for Color of Liquids Using Tristimulus Colorimetry

E180-03

Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)

D1613-17(2023)

Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products

E1615-22

Standard Test Method for Determination of Trace Quantities of Iron by Visible Spectrophotometry

E2409-20a

Standard Test Method for Glycol Impurities in Mono-, Di-, Tri- and Tetraethylene Glycol and in Mono- and Dipropylene Glycol(Gas Chromatographic Method) (Includes all amendments and changes 12/6/2021).

E2679-22

Standard Test Method for Acidity in Mono-, Di-, Tri- and Tetraethylene Glycol by Non-Aqueous Potentiometric Titration

E1064-24

Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration

Adjunct ADJD6300

D1209-05(2019)

Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)

D1193-06(2018)

Standard Specification for Reagent Water

D4052-22

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

E394-22

Standard Test Method for Iron in Trace Quantities Using the 1,10-Phenanthroline Method

E611-08

Standard Test Methods for Low Concentrations of Diethlyene Glycol in Ethylene Glycol by Gas Chromatography

E203-24

Standard Test Method for Water Using Volumetric Karl Fischer Titration

D1078-11(2019)

Standard Test Method for Distillation Range of Volatile Organic Liquids