Category ASTM Standards

ℹ️ Scope and Core Definitions ASTM D1826‑94 (Reapproved 2017), formally designated Standard Test Method for Calorific (Heating) Value of Gases in Natural Gas Range by Continuous Recording Calorimeter, provides the definitive procedure for determining the total heating value of gaseous…

📐 Test Method and Specimen Setup This test method, designated D1822-21, covers the determination of the energy required to rupture standard tension-impact specimens of plastic materials. The energy is delivered by a single swing of a calibrated pendulum in a…

📐 Scope and Terminological Framework Standard D1823 − 24, under the jurisdiction of ASTM Subcommittee D20.15 on Thermoplastic Materials, defines a definitive test method for determining the apparent viscosity of plastisols and organosols under high shear rate conditions using an…

📐 Overview and Scope ASTM D1820-95 provides a standardized method for quantifying hydrolyzable chlorine compounds in chlorinated aromatic hydrocarbons, commonly known as askarels. The test measures chloride ions obtained after methanolic sodium hydroxide hydrolysis, reported in parts per million (ppm),…

📐 Test Method Summary and Scope This test method, designated D 1821-95, covers the determination of inorganic chloride ions in askarels over the range of 0.02 to 100 ppm. The method employs potentiometric titration in an essentially nonaqueous medium to…

📐 Scope and Significance This standard, designated ASTM D1815‑00 (Reapproved 2021), covers the determination of the amount of water absorbed by leather at 23 ± 2 °C by immersion under static conditions. It is particularly adapted for vegetable‑tanned sole leather…

📐 Specimen Types and Electrode Configuration ASTM D1816 is the standard test method for determining the dielectric breakdown voltage of insulating liquids using VDE electrodes. The scope of this method is broad, covering oils of petroleum origin, silicone fluids, high…

📏 Test Method Overview and Significance ASTM D1817-05 (Reapproved 2021) specifies a standardized procedure for determining the density of solid chemicals used as rubber additives. As stated in the scope, the test method is specifically designed for the density of…

ASTM D1813-13 (Reapproved 2023) provides a precise, standardized method for determining the thickness of leather test specimens using a calibrated dead-mass dial gauge. Developed under the jurisdiction of ASTM Committee D31 on Leather, this method is integral to calculating critical…

📐 Apparatus and Gage Requirements The ASTM D1814-70 (Reapproved 2021) standard specifies two types of gages for measuring leather unit thickness: a spring-type gage and a standard wedge-type gage. The spring-type gage features a flat presser foot and anvil with…

ASTM D1807-00 outlines standardized procedures for measuring the refractive index and specific optical dispersion of electrical insulating liquids used in capacitors, transformers, circuit breakers, and oil-filled cables. The standard defines two approaches: a routine method and a more precise referee…

🧪 Scope and Significance of Askarel Specific Gravity ASTM D1810-94 describes the standardized measurement of specific gravity (relative density) for askarels. Askarels are chlorinated aromatic hydrocarbon liquids used as electrical insulation and coolant in transformers and capacitors. This method applies…