ASTM D95

ASTM D95 is the standard test method for measuring water in petroleum products and bituminous materials by distillation. It provides a recognized approach for determining water content in materials where moisture can affect quality, handling, storage stability, and product performance. As an ASTM standard, it supports consistent testing and clearer communication between suppliers, laboratories, and purchasers. ASTM D95 is often used when reliable water measurement is needed for routine quality control and specification compliance.

Purpose of ASTM D95

The purpose of ASTM D95 is to define a distillation-based test method for water in petroleum products and bituminous materials. The standard gives laboratories a common technical reference for separating and measuring water present in these materials. That helps reduce variation in test results and supports more dependable evaluation of product condition. Because water content can influence material behavior and acceptance decisions, the method is useful in testing programs that require repeatable, comparable results.

Common use cases of ASTM D95

ASTM D95 is commonly used in laboratory and quality-control settings where petroleum products or bituminous materials must be checked for water content. It may be applied during incoming material inspection, production testing, storage monitoring, or shipment acceptance. The method is relevant wherever distillation is the preferred analytical approach for water determination. In practice, ASTM D95 helps support routine testing workflows that depend on clear, standardized measurement of moisture in these material categories.

Why ASTM D95 matters

ASTM D95 matters because water content can affect product performance, consistency, and acceptance decisions. A standardized test method helps buyers and sellers use the same technical basis for evaluation, which supports compliance and reduces disputes. It also strengthens quality control by making results more comparable across laboratories and test batches. For organizations that manage petroleum products or bituminous materials, ASTM D95 can be an important part of reliable material verification and risk reduction.

• Distillation-based water determination
• Petroleum products and bituminous materials
• Quality control and acceptance testing
• Consistent laboratory comparison
• Support for compliance decisions