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The ASTM D4931-23 standard outlines a reliable test method for measuring gross moisture in green petroleum coke, incorporating procedures for sample preparation and moisture determination under controlled conditions. This method is crucial for quality control in the petroleum coke industry.…
⚙️ Scope and Principle of Distillation The ASTM D4929-24 standard specifies definitive methodologies for measuring organic chlorides (concentrations > 1 µg/g organically-bound chlorine) in crude oil. Accurate detection is vital for protecting refinery catalysts and equipment from corrosion. This standard…
🔍 Scope and Applicability of D4927‑20 ASTM D4927‑20 provides standard test methods for the elemental analysis of unused lubricating oils and additive components using wavelength-dispersive X-ray fluorescence spectroscopy (WDXRF). The standard specifically covers the determination of Barium (Ba), Calcium (Ca),…
The ASTM D4928-24 standard, formally designated as the Manual of Petroleum Measurement Standards (MPMS), Chapter 10.9, defines the procedure for determining water content in crude oils using coulometric Karl Fischer (KF) titration. It is a critical method for custody transfer…
ASTM D4926‑20 provides a robust framework for estimating gamma alumina content in silica-alumina catalysts and catalyst carriers via X‑ray powder diffraction. By analyzing the characteristic diffraction peak at ~67 °2θ, this method allows analysts to quantify transition aluminas (including eta, chi,…
ASTM D4924-21: Standard Classification for Petroleum Waxes in Rubber Compounding This technical overview details ASTM D4924-21, the standard classification system for petroleum waxes used as protective agents and process aids in rubber compounding. It provides a systematic approach for categorizing…
This article provides an overview of ASTM D4923-01, which specifies requirements for reinforced thermosetting plastic poles used in outdoor lighting. These poles are suitable for electric power and telecommunication distributions, with mounting heights ranging from 10 ft (3.05 m) to…
🔬 Overview and Significance The ASTM D4921-20 standard, under the jurisdiction of Committee D15, provides a simple and effective shake-test method for evaluating the foaming tendency of aqueous engine coolant solutions at room temperature. It serves as a crucial quality…
🧪 Scope and Principle of the Method ASTM D4922-21 covers the determination of ⁵⁵Fe in the presence of ⁵⁹Fe in water using liquid scintillation counting (LSC). The a-priori minimum detectable concentration for this test method is 7.4 Bq While developed…
The ASTM D4920-13 standard defines technical terms for conditioning, chemical, and thermal properties in textiles, ensuring consistent language across testing and quality control. It compiles definitions not found in general sources and references other key standards for comprehensive coverage. 📚…