Rigid cellular plastics are characterized by their cellular structure, which profoundly influences their thermal insulation, mechanical compliance, and fluid permeability. ASTM D2856‑94 (Reapproved 1998) provides a standardized porosity determination method for measuring the open‑cell volumetric content of these materials using…

📋 Scope and Significance of ASTM D2852-16 ASTM D2852-16 covers the requirements for styrene-rubber (SR) plastic drain pipe and fittings intended for nonpressure underground drainage. This specification applies specifically to plain-end and bell-end components in sizes 2 through 6 in.…

📐 Scope and Significance ASTM D2854-09 (Reapproved 2019) defines a standardized procedure for determining the apparent density (bulk density) of granular activated carbon. For the purposes of this test method, granular activated carbon is defined as material where a minimum…

📐 Specimen Types and Test Scope ASTM D2850-24 defines the Standard Test Method for Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils. This test method is designed for cylindrical specimens of cohesive soils in an intact, compacted, or remolded state. Specimens…

📐 General Specifications and Performance Criteria The ASTM D2851-15 specification provides comprehensive requirements for liquid optical adhesives designed for bonding glass to glass or other transparent adherends. The adhesive must be in liquid form and free of solvent to avoid…

The ASTM D2846/D2846M-24 standard specifies the requirements for chlorinated poly(vinyl chloride) (CPVC) plastic hot- and cold-water distribution system components. Issued under the fixed designation D2846/D2846M, this standard covers pipe, tubing, socket-type fittings, street fittings, plastic-to-metal transition fittings, solvent cements, and…

📋 Scope and Referenced Documents ASTM D2847-22 is a standard practice that provides an updated procedure for evaluating the corrosion protection and performance of engine coolants in passenger car and light truck service. It closely imitates current vehicle and engine…

📐 Scope and Significance This test method, designated D2844/D2844M-18, covers the procedure for testing both treated and untreated laboratory compacted soils or aggregates using the stabilometer and expansion pressure devices. The results are indicative of performance when these materials are…

ASTM D2845-08 establishes a comprehensive standard test method for the laboratory determination of pulse velocities—both compression (P) and shear (S) waves—in rock specimens. It outlines the equipment, procedures, and calculation methods required to derive ultrasonic elastic constants for isotropic or…

📐 Scope and Core Measurement Principles D2843-22 is a fire-test-response test method that details a standardized laboratory procedure for measuring and observing the relative amounts of smoke obscuration produced by the burning or decomposition of plastics. The core measurement is…

ASTM D284-88 (Reapproved 1999) establishes standardized test methods for the chemical analysis of mercuric oxide pigment. These procedures are intended to provide a quick and reliable means of measuring the purity of the pigment to determine if it meets agreed-upon…

📐 Scope and Standard Overview ASTM D2842-19 specifies the standard test method for determining water absorption of rigid cellular plastics. The procedure measures the change in buoyant force resulting from immersion under a precise 5.1 cm (2 in.) head of…

📐 Specimen Geometry and Types The standard D2838−18 applies to heat‑shrinkable plastic film and thin sheeting. Strict geometric requirements govern the test specimens. Material thickness must be less than 1.0 mm (0.04 in.), while film (a sub‑category of sheeting) is…

📌 Scope and Significance of D2839-16 This standard practice provides a method for preparing polyethylene samples specifically for density determination using the density-gradient technique outlined in Test Method D1505. The sample preparation relies on producing a consistent strand via an…

📋 Scope and Composition ASTM D2835 – 89 (Reapproved 2017) covers a polychloroprene-based lubricant formulated to facilitate the insertion and positioning of preformed elastomeric compression seals in concrete pavement joints. The lubricant must contain soluble phenolic resins blended with antioxidants…

📐 Scope and Fundamental Concepts This test method defines procedures for establishing the Hydrostatic Design Basis (HDB) for thermoplastic pipe materials and the Pressure Design Basis (PDB) for thermoplastic pipe products. The HDB is derived from the material’s long-term hydrostatic…

📐 Introduction and Scope ASTM D2832-92 (Reapproved 2016) is a standard guide designed to assist in selecting the appropriate ASTM test method for determining volatile and nonvolatile content of paints and related coatings. It covers a comprehensive range of coating…