ASTM D5569–94 provides a standardized test method for evaluating the static flow of electrical grade magnesium oxide (MgO) intended for use as insulation in sheathed heating elements. This method directly correlates with the powder’s angle of repose, a critical parameter…

📐 Scope and Specimen Requirements ASTM D5567-24 defines the standard test method for measuring the Hydraulic Conductivity Ratio (HCR) of soil/geotextile systems using a flexible-wall permeameter. This standard serves as both a design performance test and a comparative tool for…

ASTM D5568-22 establishes a comprehensive, non-resonant waveguide method for measuring the relative complex permittivity and relative magnetic permeability of solid materials at microwave frequencies. It is specifically designed for isotropic, reciprocal materials and leverages rectangular waveguide transmission lines as precise…

📝 Scope and Application of D5566-95 ASTM D5566-95 (Reapproved 2011) establishes a gravimetric test method for determining the inorganic salt content of sulfated and sulfonated oils. The method specifically measures inorganic sulfates, chlorides, and other salts that are insoluble in…

🛡️ Scope and Significance of D5565 ASTM D5565-95 (Reapproved 2011) defines the laboratory method for determining the solidification point of fatty acids. While broadly applicable to fatty acids derived from animal, marine, and vegetable fats and oils, its primary intended…

📐 Scope and Significance ASTM D5562-95 (Reapproved 2018) is a standardized test method specifically designed for determining the acidity—measured as free fatty acids or acid number—in sulfonated or sulfated oils containing ammonium or triethanolamine soaps. The acidity value is derived…

🧪 Scope and Significance of D5564-95 ASTM D5564-95 (Reapproved 2018) provides a standardized test method for determining the total ammonia content present in sulfonated or sulfated oils. Developed under the jurisdiction of ASTM Committee D31 on Leather, this method is…

🧪 Scope and Significance of D5560-95 This standard, designated ASTM D5560-95 (Reapproved 2018), is specifically developed under Committee D31 on Leather and Subcommittee D31.08 on Fats and Oils. It provides a standardized test method for determining the neutral fatty matter…

ASTM D5559-95 (Reapproved 2023) specifies the standard titrimetric test method for measuring the acidity, expressed either as free fatty acids (FFA) or as the acid number, in sulfonated and sulfated oils. This method is specifically formulated for quality assurance contexts…

🔬 Scope and Significance This test method, ASTM D5558-95 (Reapproved 2023), covers the determination of the saponification value of fats and oils. It is specifically intended for quality assurance in the manufacture of fat liquors for leather processing. The saponification…

🎯 Scope and Significance This test method covers the determination of moisture and other volatile material under conditions of the test. It is applicable to all fats, oils, and fatliquors used in the softening and stuffing of leather. The values…

📐 Scope and Significance of ASTM D5557 ASTM D5557−95 (Reapproved 2023) outlines a standard test method for determining the quantity of impurities that are insoluble in kerosine and petroleum ether within fats and oils. These materials are specifically intended for…

📐 Scope, Significance, and Apparatus ASTM D5555-95 (Reapproved 2023) provides a standardized test method for determining the free fatty acid (FFA) content of animal, marine, and vegetable fats and oils intended for use in fat liquors and stuffing compounds. As…

📐 Scope and Significance This test method, designated ASTM D5554-15 (Reapproved 2021), covers the determination of the iodine value of fats and oils that do not contain conjugated double bonds. The iodine value is a measure of unsaturation, expressed in…

This test method, designated D5552-10 (Reapproved 2023), outlines a standardized procedure for evaluating the resistance of colored leather to bleeding. It is specifically designed for finished upper leather used in shoes, handbags, and similar articles, but does not apply to…

📐 Scope, Significance, and Apparatus This test method, designated D5553 −95 (Reapproved 2019) and developed under the jurisdiction of ASTM Committee D31 on Leather, provides a procedure for determining the unsaponifiable, nonvolatile (above 80°C) matter in sulfated oils. It is…

This article provides an overview of ASTM D5551-95 (Reapproved 2019), a standard test method for determining the cloud point of oils used in the softening and stuffing of leather and in the manufacture of fat liquors and other compounds. Derived…