ASTM D95 is a standardized test method developed by ASTM International. It measures the volume of water in petroleum products, tars, and other bituminous materials within the range of . The Core Principle: Dean-Stark Distillation
Knowledge of the water content in petroleum and bituminous materials is highly important for several key reasons:
Best for samples with moderate to high water content (0.1% to 25%). It handles heavily contaminated oils, crude oil, and thick bitumens exceptionally well.
What specific you are testing
Yes—the method measures (free, emulsified, and dissolved) because the distillation process extracts all water from the sample.
Do you need help choosing between for your sample?
Because water is denser than the solvent and completely immiscible, it sinks to the bottom of the trap. The lighter solvent overflows and flows back into the boiling flask. Astm D95 Pdf
Crude oil is sold by volume; however, water content (often referred to as Basic Sediment and Water, or BS&W) is an impurity. Buyers utilize ASTM D95 to ensure they are paying for oil, not water.
A: The ASTM D95 standard can be purchased and downloaded from the official ASTM website or accessed through standards repositories.
Performing ASTM D95 accurately requires specialized glassware and a heat source. Key components of the Dean-Stark apparatus used include: ASTM D95 is a standardized test method developed
For those seeking the ASTM D95 PDF, the safest and most reliable approach is to purchase it directly from ASTM International or its authorized resellers such as ANSI, Techstreet, or Accuris. While free versions exist on document-sharing platforms, they should only be used for reference, never for regulatory compliance or certification purposes.
When selecting a water determination method, the choice between ASTM D95 and Karl Fischer (KF) titration hinges on the specific application and the level of accuracy required.
Whether you are a quality control manager in a refinery, a researcher analyzing bituminous materials, or a student studying petroleum chemistry, ASTM D95 provides the you need. It handles heavily contaminated oils, crude oil, and