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Conduct all operations involving salicylaldehyde, acetic anhydride, chloroform, or toluene inside a certified laboratory chemical fume hood.
While the ASTM D2074 standard was originally written around manual color changes, many modern laboratories pair this methodology with automated potentiometric titrators. This minimizes human error, provides more distinct inflection points, and improves overall repeatability. Let's Advance Your Testing Workflow
: The latest reapproved version is ASTM D2074-07(2019) , available through the ASTM International website . 🛒 How to Access the PDF astm d2074 pdf
In agriculture, this standard is used to verify the chemical composition of certain soil conditioners and additives in seed treatments, ensuring they meet the necessary product specifications.
Uses a simpler indicator titration method (observing a color change) and is specifically not applicable to fatty amidoamines and diamines. Let's Advance Your Testing Workflow : The latest
(typically bromocresol green or methyl orange) to identify the endpoint of the titration with an acid, such as hydrochloric acid ( cap H cap C l Amine Differentiation Total Amine Value : Measures all basic amino groups present. Primary, Secondary, and Tertiary
Always check if the version you are purchasing is the active standard or a historical version, as ASTM regularly reviews and reapproves or updates methods every few years. (typically bromocresol green or methyl orange) to identify
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were off by even a fraction, the resulting lotion would separate on store shelves, and Arthur’s company would be on the hook for the entire line. The Deviation
In epoxy systems, amines act as hardeners. An incorrect amine value shifts the resin-to-hardener ratio. This results in incomplete curing, brittle plastics, or sticky surface finishes. Surfactant Synthesis
ASTM D2074 is a standard test method developed by ASTM International (Committee D01 on Paint and Related Coatings, Materials, and Applications). It outlines alternative procedures for determining the total, primary, secondary, and tertiary amine values of fatty amines. What is an "Amine Value"?