The standard establishes the statistical margins of error allowed between different operators in the same lab (repeatability) and different laboratories (reproducibility). How to Access the Official ASTM D2074 PDF
ASTM D2074 is a standard test method developed by ASTM International (formerly the American Society for Testing and Materials). Its official title is
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The sample dissolves in an appropriate solvent mixture, usually containing isopropyl alcohol and chloroform. The solution is titrated directly with standard acid using a bromphenol blue indicator. This step measures all basic nitrogen content (primary + secondary + tertiary). 2. Primary Amine Value
Technicians must wear nitrile or chemical-resistant gloves, safety goggles, and standard laboratory coats. The standard establishes the statistical margins of error
The standard's primary function is to define the indicator procedure for determining the total, primary, secondary, and tertiary amine values of fatty amines. The results are expressed in the (mg KOH/g).
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Core Content Summary The sample dissolves in an
The use of high-purity reagents is critical for obtaining accurate results. The standard specifies that reagent-grade chemicals must be used, and water must conform to Type II specifications of ASTM D1193. The specific reagents called for include:
This step measures the combined basicity of all primary, secondary, and tertiary amines present in the fatty amine sample. The sample is typically dissolved in a suitable solvent (such as isopropyl alcohol) and titrated against a standardized acid solution (usually hydrochloric acid, HCl) using a color indicator to signal the endpoint. 2. Primary Amine Value
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