Category ASTM Standards

📏 Scope, Significance, and Applications This practice describes the use of thin rigid metal notched gages for measuring the wet film thickness of organic coatings. These measurements are approximate but essential for controlling dry film thickness. The standard includes two…

🌊 Scope and Application of ASTM D4411-03 This standard guide covers the equipment and basic procedures for sampling to determine discharge of sediment transported by moving liquids. Originally developed for mineral sediments in rivers, it is applicable to a variety…

ASTM D4412-19 (Reapproved 2024) provides standardized test methods for the detection and enumeration of sulfate-reducing bacteria (SRB) in water and water-formed deposits using the Most Probable Number (MPN) technique. SRB are significant contributors to microbially influenced corrosion (MIC) and hydrogen…

📐 Test Overview and Significance ASTM D441-07 provides a standardized method for determining the relative friability of sized coal. Friability refers to the coal’s tendency to break into smaller pieces due to handling, which is critical for assessing quality during…

ASTM D4410-16 provides standardized terminology for fluvial sediment, essential for professionals in sedimentation and hydrologic processes. It ensures consistent communication in water and land resource management. 📖 Scope and Referenced Standards This standard is applicable to persons involved in collecting,…

📐 Current Meter Types and Design Principles ASTM D4409-95 establishes standard specifications for cup-type or vane-type vertical axis current meters and propeller-type horizontal axis current meters (Section 1.1). The standard primarily addresses instruments used in open-channel hydraulics with an operator…

ASTM D4406-04 provides a standardized method for determining the creep behavior of intact cylindrical rock core specimens under triaxial compression at ambient or elevated temperatures. This test method is essential for evaluating the long-term stability of underground structures subjected to…

ASTM D4407 – 84 establishes a standardized procedure for collecting benthic macroinvertebrates using the Orange Peel Grab Sampler. This practice is essential for obtaining qualitative reconnaissance data in marine waters and deep lakes, supporting ecological assessments and water quality studies.…

ASTM D4404-18 standardizes the measurement of pore volume and pore volume distribution in soil and rock via mercury intrusion porosimetry (MIP). This method is fundamental for characterizing geological porosity by forcing mercury into a specimen under controlled, increasing pressure. 📐…

ASTM D4405-04 specifies a standard test method for measuring the creep behavior of intact cylindrical soft rock core specimens under uniaxial compression. This method is essential for evaluating the time-dependent deformation of soft rocks such as salt and potash, which…

ASTM D4402/D4402M-23 provides a definitive procedure for measuring the apparent viscosity of asphalt binders at elevated temperatures. This test method is essential for evaluating the workability and flow characteristics of asphalt during production, transport, and placement, ensuring performance under high-temperature…

📜 Scope and Application This practice covers the description, application, selection, installation, data collecting, and data reduction of contact type extensometers used in rock mechanics. It is limited to contact-type devices; laser or non-contact extensometers are excluded. The values stated…