Category ASTM Standards

ASTM D4107-20 provides a standardized, reproducible approach for quantifying tritium activity in drinking water using liquid scintillation counting. The method is designed to meet stringent regulatory requirements, including the US EPA National Primary Drinking Water Regulations (NPDWR), ensuring accurate monitoring…

🔭 Scope and Analytical Foundation This standard practice, designated D4104/D4104M, provides a rigorous analytical framework for determining the transmissivity (T) of nonleaky confined aquifers. It is specifically designed to evaluate the overdamped (force-free) response of a well-aquifer system to an…

📐 Overview of the Modified Theis Nonequilibrium Method This practice covers an analytical procedure for determining transmissivity and storage coefficient of a nonleaky confined aquifer under conditions of radial flow to a fully penetrating well of constant flux. It serves…

The ASTM D4102/D4102M-22 standard provides a standardized test method for evaluating the thermal oxidative resistance of carbon fibers. By measuring weight loss after exposure to hot air, this test helps in selecting fibers with superior stability for high-temperature composites. 📐…

🚧 Scope and Significance of ASTM D4103-17 ASTM D4103-17, under the jurisdiction of ASTM Committee D21 on Polishes, establishes standardized procedures for preparing substrate surfaces—specifically Official Vinyl Composition Tile (OVCT) and wood panels—for subsequent Coefficient of Friction (COF) testing. The…

📐 Scope and Classification System ASTM D4101-24 establishes a standard classification system for polypropylene materials intended for injection molding and extrusion processes. The classification covers a broad range of polymers, including homopolymers, copolymers, and elastomer compounds. These materials may be…

ASTM D4099–95 defines material properties and performance characteristics for rigid PVC prime windows and sliding glass doors. It applies to complete assemblies with hardware and anchors. 🏗️ Scope and Application This standard is limited to prime windows and doors, excluding…

ASTM D41/D41M – 11 (Reapproved 2023), also designated as AASHTO No. M116, establishes the standard specification for asphalt primer used in roofing, dampproofing, and waterproofing applications. This specification covers asphaltic primers suitable for application to concrete, masonry, metal, and asphalt…

📐 Scope and Particulate Collection Parameters This standard, D4096 −17 (Reapproved 2023), specifies the high-volume sampler method for determining total suspended particulate matter (TSP) in the atmosphere. It involves drawing a large volume of air, typically 1600 m³ to 2400…

🏗️ Scope and Key Application Limitations ASTM D4097-19 provides the definitive standard specification for contact-molded, glass-fiber-reinforced thermoset resin corrosion-resistant tanks. This specification covers cylindrical tanks fabricated by contact molding specifically for above-ground vertical installation. Their primary purpose is to contain…

📐 Apparatus and Reagents Specification The apparatus and reagents prescribed in Sections 6 and 7 of ASTM D4094-07 are essential for accurate acid content determination. The tables below detail the key equipment and chemical requirements. 🔧 Equipment 📏 Specification 🎯…

ASTM D4095−97 (Reapproved 2020), titled Standard Practice for Use of the Refractometer for Determining Nonvolatile Matter (Total Solids) in Floor Polishes, provides a rapid, indirect analytical method for quality control. By establishing a predictable correlation between refractive index and total…