D4391-18 – Standard Test Method Technical Guide

📖 Key Terminology for Burning Behavior of Textiles ASTM D4391-18a provides the precise lexicon required for evaluating textile flammability. Developed by subcommittee D13.92, these definitions are also integral to the broader D123 “Terminology Relating to Textiles”. Mastery of these terms…

D4387-02 – Standard Test Method Technical Guide

🧪 Overview and Scope of ASTM D4387-02 ASTM D4387-02 provides a definitive framework for selecting grab sampling devices intended for collecting benthic macroinvertebrates in freshwater, estuarine, and marine habitats. The standard establishes that when used correctly, a grab sampler acts…

D4388-20 – Standard Test Method Technical Guide

The ASTM D4388−20 standard establishes requirements for nonmetallic semi-conducting and electrically insulating rubber tapes used in splicing and repair of power cables operating at voltages up to 325 kV. The standard classifies tapes into five types based on voltage rating,…

D4385-19 – Standard Test Method Technical Guide

📋 Scope and Key Terminology This practice, ASTM D4385-19, covers acceptance criteria for visual acceptance of thermosetting reinforced plastic pultruded rods, bars, shapes, and sheets. It defines possible defects to guide contracts, drawings, product specifications, and final inspection. Values are…

D4386-24 – Standard Test Method Technical Guide

🏗️ Floor Composition and Initial Preparation Multilayer composite tile or flooring, as defined by ASTM D4386-24, consists of an engineered structure comprising a decorative pattern layer and a transparent wear layer. Some floors also incorporate a stress-absorbing foam layer or…

D4382-18 – Standard Test Method Technical Guide

📘 Introduction and Scope This standard test method, ASTM D4382-18, is designed for the determination of dissolved and total recoverable barium in water and wastewater matrices. The method utilizes atomic absorption spectrophotometry with a graphite furnace, providing high sensitivity for…

D4383-21 – Standard Test Method Technical Guide

📐 Scope and Intent of ASTM D4383-21 ASTM D4383-21 establishes the standard specification for plowable, raised retroreflective pavement markers used for lane marking and roadway delineation. These markers are engineered to provide critical nighttime visibility under both wet and dry…

D4381-22 – Standard Test Method Technical Guide

🏗️ Scope, Apparatus, and Referenced Standards ASTM D4381-22 specifically determines the sand content by volume of bentonitic slurries used in slurry construction techniques. Modified from API Recommended Practice 13B, it relies on a No. 200 (75 µm) sieve as designated…

D4378-24 – Standard Test Method Technical Guide

📊 Overview of In-Service Monitoring The ASTM D4378-24 standard provides a practice for monitoring mineral turbine oils in steam, gas, and combined cycle turbines used for power generation. This monitoring has long been recognized by the power-generation industry as necessary…

D4380-20 – Standard Test Method Technical Guide

🧪 Scope and Test Overview This standard test method, designated D4380‑20, provides a standardized procedure for determining the density of construction slurries. It is applicable to slurries used in drilling borings, maintaining trench stability, performing ground improvement, and forming hydraulic…

D4376-15 – Standard Test Method Technical Guide

📐 Scope and Overview of ASTM D4376-15 ASTM D4376-15 (Reapproved 2020) defines the specification for vapor-degreasing grade perchloroethylene (tetrachloroethylene). This standard, developed by ASTM Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents, covers the material requirements for perchloroethylene…

D4377-00 – Standard Test Method Technical Guide

This test method, jointly developed by ASTM and the American Petroleum Institute (API), provides a standardized procedure for the potentiometric Karl Fischer titration determination of water in crude oils. It is formally designated as ASTM D4377-00 (Reapproved 2011), MPMS Chapter…

D4374-06 – Standard Test Method Technical Guide

ASTM D4374-06 defines automated test methods for determining total cyanide, weak acid dissociable (WAD) cyanide, and thiocyanate in water and wastewater. These methods utilize continuous flow analysis paired with on-line thin film distillation and ultraviolet (UV) irradiation to accurately differentiate…

D4375-96 – Standard Test Method Technical Guide

📖 Purpose, Scope, and Significance ASTM D4375-96 (Reapproved 2011) is under the jurisdiction of Committee D19 on Water and establishes a uniform standard for calculating, expressing, and symbolizing fundamental statistical parameters. The scope emphasizes that prior to performing many statistical…

D4371 – Standard Test Method Technical Guide

🔬 Scope, Preparation, and Size Classification ASTM D4371/D4371M standardizes the determination of washability characteristics for both coarse-coal and fine-coal fractions. As defined in Section 1.1, each size fraction tested must have an upper and lower size limit without overlapping adjacent…

D4370-01 – Standard Test Method Technical Guide

The ASTM D4370 −01 (Reapproved 2023) standard, “Standard Test Methods for Acid and Base Milliequivalent Content of Electrocoat Bath,” outlines procedures for determining titratable acid and base content in anodic and cathodic electrocoat baths and their ultrafiltrates. The methods involve…