Category ASTM Standards

ASTM Standards Interpretation

D4974 – Standard Test Method Technical Guide

ASTM D4974/D4974M defines a standard test method for measuring the hot air thermal shrinkage of yarns and cords using a thermal shrinkage oven. This method is essential for evaluating the dimensional stability of materials used in tire cords and industrial…

D4970 – Standard Test Method Technical Guide

ASTM D4970/D4970M-22 provides a standardized test method for determining the resistance to pilling and other surface changes in textile fabrics using the Martindale tester. This method is essential for evaluating fabric quality and performance. 📐 Test Method Overview and Scope…

D4969-17 – Standard Test Method Technical Guide

📐 Scope and Classification This specification, D4969‑17 (Reapproved 2022), covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a nominal thickness of 0.318 mm (0.015 in.) or less. It is intended for electrical, chemical, and mechanical uses. Structural…

D4968-19 – Standard Test Method Technical Guide

📐 Scope and Key Terminology ASTM D4968-19 is a standard practice meant to assist the subcommittees and sections of Committee D20 on Plastics with the process of standards evaluation during the mandatory five-year review established by ASTM. It is designed…

D4966-22 – Standard Test Method Technical Guide

📐 Scope, Specimen Considerations, and Units This test method, designated D4966-22, specifically covers the determination of the abrasion resistance of textile fabrics using the Martindale abrasion tester. Under the jurisdiction of ASTM Committee D13 on Textiles and Subcommittee D13.60 on…

D4963 – Standard Test Method Technical Guide

📐 Scope and Specimen Classification The D4963/D4963M−22 standard defines a primary test method for determining the ignition loss of glass fiber textiles. It establishes a procedure applicable to a wide variety of products. As stated in the scope, this includes…

D4964-96 – Standard Test Method Technical Guide

📐 Scope and Field of Application ASTM D4964 – 96 (Reapproved 2020) establishes a standardized methodology for measuring the tension and elongation of elastic fabrics using a Constant-Rate-of-Extension (CRE) type tensile testing machine. The standard applies to both wide and…

D4962-18 – Standard Test Method Technical Guide

📐 Scope and Application ASTM D4962-18 standardizes the measurement of radionuclides in water using gamma-ray spectrometry with NaI(Tl) detectors. It applies to nuclides emitting gamma rays with energies greater than 50 keV. For typical systems, activity levels of about 40…