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📐 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…