📐 Sample Preparation and Quartering This test method begins with careful sample preparation. According to Section 4.1 of D1997-20, the © 2026 TNLab — This article is a technical interpretation for reference only. The original standard as published by ASTM…

📐 Scope and Classification of Polyethylene Upright Storage Tanks ASTM D1998-21 provides a comprehensive specification for flat-bottom, upright, cylindrical tanks designed for the storage of aggressive chemicals at atmospheric pressure. These tanks are constructed in a one-piece, seamless configuration using…

📐 Scope and Significance of ASTM D1994-07 ASTM D1994-07 (Reapproved 2015) establishes a standard test method for determining the acid number of hot-melt adhesives through titration. This test method is specifically applicable to hot-melt and hot-melt/acid systems that are fully…

📐 Test Modes and Adherend Combinations Standard D1995-92 (Reapproved 2017) provides four primary stressing modes for testing autohesives: compression shear, cleavage, climbing drum peel, and T-peel. These modes are designed to evaluate bond strength under various stress conditions, including rigid-to-rigid,…

🧪 Test Scope and Summary of Method This test method, designated D1996 – 97 (Reapproved 2003), describes a liquid chromatographic (LC) procedure for the separation and quantification of phenolic antioxidants and erucamide slip additives in low density polyethylene (LDPE). The…

📘 Overview and Scope of ASTM D1992 ASTM D1992 – 17 (Reapproved 2022), officially titled the Standard Guide for Testing Synthetic Plasticizers Used in Rubber, establishes a coordinated set of test methods for evaluating synthetic plasticizers in rubber compounding. Developed…

📐 Scope and Significance This standard, designated D1993-22, provides a definitive procedure for measuring the specific surface area of precipitated hydrated silicas. The methodology is based on the classic Brunauer, Emmett, and Teller (BET) theory of multilayer gas adsorption, employing…

📐 Scope and Historical Development ASTM D1990-24 introduces a fundamental shift in how structural design values are determined for visually-graded dimension lumber. Traditionally, allowable stresses were derived from standard tests on small, clear (defect-free) wood specimens under Practice D245, utilizing…

🧪 Scope and Summary of the Test Method This test method, designated D1991-15 (Reapproved 2023), covers a standardized procedure for determining the assay of 2-Mercaptobenzothiazole (MBT). MBT is a widely utilized accelerator in the rubber and latex vulcanization industry, and…

🔬 Overview and Scope ASTM D1988-20, developed under the jurisdiction of ASTM Committee D03 on Gaseous Fuels, establishes a standard test method for the rapid field determination of mercaptans in natural gas pipelines using length-of-stain detector tubes. Mercaptans are intentionally…

🔥 Scope and Normative References of ASTM D1989-97 This standard, formally designated D 1989 – 97, establishes a test method for determining the gross calorific value of coal and coke. It is specifically structured for use with microprocessor controlled isoperibol…

🔬 Apparatus and Specimen Geometry ASTM D1986-14 (Reapproved 2021) specifies a small-volume, coaxial (concentric cylinder) rotational viscometer for this test. The essential instrumentation required for compliance includes a drive motor capable of applying unidirectional rotational displacement at a rate of…

📐 Standard Scope and Applicability This test method, designated D1987-22, is used to determine the potential for and relative degree of biological growth that can accumulate on geotextile, drainage geocomposites, or geotextile/soil filters. It measures flow rates over an extended…

📋 Scope and Classification of Tall Oil Fatty Acids ASTM D1984-69 defines the specification for distilled fatty acids derived from tall oil, a byproduct of the kraft pulping process. The standard classifies tall oil fatty acids into three distinct types…

ASTM D1985-13 (Reapproved 2024) establishes a uniform procedure for preparing concrete blocks used for testing joint and crack sealants for portland cement concrete and asphaltic concrete pavements. It is intended for use by manufacturers, users, and testing agencies to ensure…

🧪 Significance and Use This test method covers the determination of the solidification (titer) point of fatty acids and is applicable to all fatty acids. Saturated fatty acids solidify at a higher temperature than unsaturated fatty acids. Therefore, the titer…

ASTM Standard D1983-90 (Reapproved 1995) establishes standard conditions for the separation and identification of methyl esters by gas-liquid chromatography (GLC). This test method is specifically applicable to animal and vegetable fatty acids and oils having 8 to 24 carbon atoms.…