🔬 Scope and Applicability ASTM D2161-20 provides the standardized conversion tables and equations for translating kinematic viscosity, measured in mm²/s (equivalent to centistokes, cSt), into legacy Saybolt Universal Seconds (SUS) and Saybolt Furol Seconds (SFS). The kinematic viscosity scale used…

📐 Scope and Application ASTM D2156-09 (Reapproved 2024) is a standard test method for evaluating smoke density in flue gases from burning distillate fuels. It is primarily intended for use with home heating equipment burning kerosine or heating oils. This…

ASTM D2157-24, under the jurisdiction of Committee D02 on Petroleum Products and Lubricants, provides a definitive standardized procedure for evaluating the effect of air supply on the smoke density of flue gases from burning distillate fuels. This test method is…

📌 Scope and Significance of D2152-23 ASTM D2152-23, an American National Standard, defines a test method for evaluating the adequacy of fusion in extruded rigid poly(vinyl chloride) (PVC) pipe and molded fittings. The core procedure involves immersing a prepared specimen…

🔥 Test Method Overview: Assessing Autoignition This standard, designated ASTM D2155-18 (Reapproved 2024), establishes a definitive procedure for assessing the fire resistance of hydraulic fluids used in aircraft applications. The core objective is the determination of the autoignition temperature (AIT)…

📜 Scope and Significance of ASTM D215-91 ASTM D215-91 (Reapproved 2002) provides a comprehensive standard practice for the chemical analysis of traditional white linseed oil paints. Issued under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, this…

📐 Apparatus and Specimen Preparation This practice specifies the use of standardized equipment to ensure consistent test conditions. The key apparatus includes a mill, a press, and an oven with precise temperature control, along with other auxiliary equipment for specimen…

ASTM D2148-22 establishes standardized test methods for evaluating bondable silicone rubber tapes designed for electrical insulation applications. These tapes form sealed structures through heat with pressure or auto-adhesion (self-fusing). The standard covers multiple test methods and emphasizes the use of…

📐 Scope and Significance This test method, D2149-13 (Reapproved 2021), details the determination of the relative permittivity (dielectric constant) and dissipation factor of solid dielectrics over a frequency range of 50 Hz to 10 MHz and a temperature range of…

🧪 Overview and Scope of D2140‑24 ASTM D2140‑24 is a standard practice for calculating the carbon‑type composition of mineral insulating oils of petroleum origin. The method correlates basic physical properties—specifically the Viscosity‑Gravity Constant (VGC) and the Refractivity Intercept (ri)—to the…

📐 Scope and Summary of Test Method ASTM D2143-21, Standard Test Method for Cyclic Pressure Strength of Reinforced, Thermosetting Plastic Pipe, provides a procedure for evaluating the failure characteristics of reinforced thermosetting resin pipe (RTRP) under repetitive internal hydraulic pressure…

📐 Practices Overview and Scope ASTM D2144-07 (Reapproved 2021) defines standard practices for examining electrical insulating oils via infrared absorption. The practices focus on recording and interpreting spectra from 4000 cm⁻¹ to 400 cm⁻¹ (2.5 µm to 25 µm). These…

ASTM D2136-19 defines a standard pass/fail test method for evaluating the low-temperature flexibility of coated fabrics. Fabrics coated with rubber or rubber-like materials stiffen at low temperatures, and this test determines if they can withstand a prescribed bend without fracturing…

📐 Test Methods Overview and Specimen Types ASTM D2137-11 (Reapproved 2018) covers four distinct test methods for determining the brittleness point of flexible polymers and coated fabrics. Test Method A determines the lowest temperature at which rubber vulcanizates will not…

🔬 Scope and Application of D2132-23 The ASTM D2132-23 standard test method differentiates solid insulating materials regarding their resistance to electric arcs. These arcs occur through surface films of a specified contaminant containing moisture in a dust-and-fog environment. The scope…

📐 Apparatus and Specimen Preparation The Sward-Type hardness rocker apparatus consists of two flat, chromium-plated bronze rings with uniformly round outside edges. These rings are separated and held in position by a weighted lower member and three horizontal lightweight spacer…

📐 Scope and Applicability of D2130-22 ASTM D2130-22 establishes the standard procedure for determining the average fiber diameter and fiber diameter variation of wool and other animal fibers—including mohair, cashmere, alpaca, and camel’s hair—using a microprojector. The standard is issued…