Many official resellers provide free previews of ASTM D95, including:
ASTM D95 is the globally recognized standard for determining the water content in petroleum products, tars, and bituminous materials. Specifically known as the , it is a foundational protocol for oil refining, trade, and quality control. Overview of ASTM D95
The American Society for Testing and Materials (ASTM) is a globally recognized leader in the development and delivery of voluntary consensus technical standards. Among its vast collection of standards, ASTM D95 stands out as a crucial test method for the petroleum industry. This article provides an in-depth exploration of ASTM D95, focusing on its significance, methodology, and applications, particularly in the context of evaluating water and sediment in crude oil.
Water contamination affects petroleum products in several ways: Astm D95 Pdf
The volume of collected water is measured directly from the graduated trap to calculate the total percentage in the sample. Equipment Required
: Excessive water can cause "mayonnaise effects" (emulsions) or damage equipment during processing.
Verify that finished commodities fall within strict contractually allowed moisture parameters. Many official resellers provide free previews of ASTM
Performing ASTM D95 accurately requires specialized glassware and a heat source. Key components of the Dean-Stark apparatus used include:
The volume of water collected in the graduated trap is used to calculate the percentage in the original sample. 3. Required Equipment
: Water in fuels like gasoline can freeze in lines or cause fuel blockages in cold temperatures. Test Principle & Apparatus Among its vast collection of standards, ASTM D95
The solvent must be tested for its water content before use, as a correction is required.
The volume of water in the trap is measured to calculate the water percentage of the original sample, typically in a range from 0% to 25% by volume. Standard Specifications & Access
A precise mixture of the tested hydrocarbon and a water-immiscible carrier solvent (such as xylene or toluene) is systematically boiled. As heating takes place, the carrier solvent and the locked moisture content vaporize simultaneously. The combined vapors rise directly into a designated reflux condenser. Once chilled back to a liquid state, the mixed fluid drains downward into a specialized graduated collection trap.
The primary principle underlying the ASTM D95 test is the distillation of a sample in the presence of a .