🧪 Objective and Scope of D4758-92 The ASTM D4758-92 test method defines a rapid quality control procedure for determining the nonvolatile content (total solids) of commercial synthetic latex vehicles. The specified conditions of 180°C for 20 minutes were specifically selected…

🏗️ Scope, Standards, and General Requirements This standard practice, designated ASTM D4756-15 (Reapproved 2021), establishes the basic requirements and methods for the installation of rigid poly(vinyl chloride) (PVC) siding, soffits, and their associated accessories on the exterior wall and soffit…

⚠️ Placard Warning and Hazard Statements Section 5 of ASTM D4757‑98 specifies the exact language that must appear on a placard attached to a solvent vapor degreaser. These statements address the full spectrum of risks associated with halogenated solvents, including…

📐 Specimen Geometry and Test Materials This test method, designated D4754-18, provides a standardized protocol for two-sided liquid extraction of plastic materials using the FDA Migration Cell. The method is specifically designed for materials that can be fabricated into film,…

📐 Overview of ASTM D4755 Test Method ASTM D4755-95 (Reapproved 2020) establishes a standard procedure for evaluating free halogens in halogenated organic solvents and their admixtures. The presence of free halogens is a critical quality indicator as they react with…

🔬 Scope and Significance of D4752-20 This standard practice describes a solvent rub technique for assessing the MEK resistance of ethyl silicate (inorganic) zinc-rich primers. The MEK resistance of some two-component ethyl silicate zinc-rich primers has been shown to correlate…

📐 Scope and Application ASTM D4753‑24 provides minimum requirements for general‑purpose balances and standard masses used in testing soil, rock, and related construction materials. This guide offers guidance for evaluating, selecting, and specifying such equipment. Accuracy is specified through the…

📖 Scope and Significance This test method, designated D 4750 – 87 (Reapproved 2001), provides standard procedures for measuring the level of liquid in a borehole or monitoring well (observation well) and specifically determining the stabilized liquid level. The method…

🧪 Standard Scope and Terminology for D4751-21 The D4751-21 standard establishes test methods for determining the Apparent Opening Size (AOS), denoted as O95. This critical property indicates the approximate largest particle that would effectively pass through a geotextile. The standard…

📐 Composition and Types of Pure Para Red Toner This specification covers the red pigment commercially known as pure para red toner, available in two distinct Types: Type I (light) and Type II (dark). Both types must be in a…

📐 Overview and Applicability of the Test Method ASTM D4748-10 (Reapproved 2020) establishes a standardized, non-destructive procedure for determining the thickness of bound pavement layers using short-pulse ground penetrating radar (GPR). The test method is officially under the jurisdiction of…

📐 Scope and Applicability ASTM D4749/D4749M-87 (Reapproved 2019) provides a standardized method for sieve analysis of coal and designating coal size based on test data. It applies to raw and prepared coals, including crushed, cleaned, or screened samples, covering size…

📊 Overview and Significance of D4746-20 ASTM D4746-20 is an empirical standard test method for the determination of quinoline insolubles (QI) in tar and pitch by pressure filtration. This test method yields results comparable to those obtained by Test Method…

🔬 Scope and Significance This test method, designated D4747-02 (Reapproved 2014), specifies the procedure for determining the free monomer content of acrylic latexes using gas-liquid chromatography (GLC). The method has been successfully validated for monomers including n-butyl methacrylate, n-butyl acrylate,…

The D4745−19 (Reapproved 2024) classification system is the definitive standard for filled PTFE molding and extrusion materials. It establishes a framework for specifying compounds made from virgin PTFE resins (Types II and III per D4894) combined with fillers that withstand…

ASTM D4743‑92 (Reapproved 1996) defines a laboratory procedure for determining the efficacy of solvent systems in dissolving water‑formed deposits. The method applies a gravimetric approach to evaluate single or multiple solvent systems on removed or synthetic deposits. 📐 Scope and…

This standard (Designation: D 4744 – 89, Reapproved 1995) covers the determination of organic halides (chlorine, bromine, and iodine) in water. It is an operational definition based on carbon adsorption and microcoulometric detection. 🧪 Scope and Key Limitations The test…