MaTestLab > Test Standards > ASTM E202 Analysis of Ethylene Glycols and Propylene Glycols

ASTM E202 Analysis of Ethylene Glycols and Propylene Glycols

ASTM E202 test procedures cover chemical and physical analysis of the grades of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, and dipropylene glycol that are frequently available in the marketplace. Water Content in ethylene glycols and propylene glycols is determined by the Coulometric Karl Fischer Titration method.

Introduction to ASTM E202

ASTM E202 standard test methods measure certain chemical and physical properties of ethylene glycols and propylene glycols and are also used to assess whether a product complies with specifications that set limitations for these attributes. The quality and suitability of the glycols for their intended applications are ensured, which specifies the allowed ranges for several qualities.

ASTM E202 Standard Test Methods

The ASTM E202 specification includes the following key sections:

Specific gravity	The pycnometer test measures how dense a sample is compared to water by weighing an empty container and filling it with the sample.
Distillation range	The distillation range of a sample is determined by heating the sample and measuring its components’ boiling points, providing the separation range.
Acidity	A pH indicator is used to measure the concentration of acid in a sample by adding a strong base until all acidic compounds are neutralized.
Water	The Karl Fischer reagent titration method involves preparing the reagent, mixing it with the sample, and monitoring the reaction to determine the water content of the sample.
Iron	ASTM E202 method dilutes the sample and uses a specific reagent to measure the iron content. The reagent is adjusted to overcome the effect of glycol, allowing for a more accurate determination of the iron content.
Gas chromatographic analysis	The sample is injected into a gas chromatographic column, where components are separated and recorded as a chromatogram. The composition of the sample is determined by measuring the areas under the peaks of the chromatogram.

ASTM E202 Specimens

Specimen details	ASTM E202 samples are commercially available grades of dipropylene glycol, ethylene glycol, triethylene glycol, and ethylene diol.
Specimen dimensions	ASTM E202 specimens are often delivered in liquid form for chemical and physical investigation, either as a pure compound or as a solution with specified concentrations.
Specimen preparation	In order to reach acceptable concentrations suited for the analysis, concentrated solutions may need to be diluted during the preparation of the specimen.

ASTM E202 Results

ASTM E202 measures the chemical and physical properties of ethylene glycols and propylene glycols, ensuring their quality and suitability for their intended applications.

Tests Related to ASTM E202

ASTM E202 test method is related to standards such as ASTM D1078 for the distillation range of volatile organic liquids and ASTM D1193 for reagent water.

FAQ's

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Please contact us for a detailed quote for your astm e202 testing needs. Cost incurred to carry out different astm e202 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

How many samples are required for astm e202?

The required number of samples or specimens should comply with the procedure given in the astm e202 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

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The turnaround time for astm e202 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.

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