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ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids
ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids8. Calculation and Report8.1 Calculate the hydroxyl value as the number of milligrams of potassium hydroxide equivalent to the hydroxyl content of 1 g of sample as follows:where:A = KOH solution required for titration of the acid ...
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ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids
ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids7. Procedure7.1 Weigh, to 0.1 mg into a 250-mL Erlenmeyer flask, the correct amount of sample for acetylation determined as follows:7.2 Weigh 9.0 to 11.0 g of the sample into another flask for the acid value. If the test method ...
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ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids
ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids4. Apparatus4.1 Erlenmeyer Flask, 250-mL, standard ground-glass-stoppered.4.2 Condensers, straight-tube, Liebig type, having standard ground-glass joints.5. Reagents5.1 Purity of Reagents - Reagent grade chemicals shall be used ...
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ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids
ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids3. Significance and Use3.1 Hydroxyl value is important in establishing reactivity with acids and isocyanates. It is also a measure of the degree of dehydration of castor oil.3.2 This test method determines the total amount of residual ...
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ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids
ASTM D1957 Standard Test Method for Hydroxyl Value of Fatty Oils and Acids1. Scope1.1 This test method covers the determination of the hydroxyl content of castor oil, dehydrated castor oil, and their derivatives. This test method may also be used for other fatty products such as fatty alcohols, mono- ...
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HYDROPEROXIDE NUMBER OF AVIATION TURBINE FUELS: ASTM D6447
HYDROPEROXIDE NUMBER OF AVIATION TURBINE FUELS: ASTM D6447EXPLANATIONThe magnitude of the hydroperoxide number is an indication of the quantity of oxidizing constituents present. Deterioration of fuel results in the formation of hydroperoxides and other oxygen-carrying compounds. The hydroperoxide number ...
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HYDROGEN SULFIDE IN RESIDUAL FUEL OILS: ASTM D5705
HYDROGEN SULFIDE IN RESIDUAL FUEL OILS: ASTM D5705EXPLANATIONSee the discussion under Test Method ASTM D6021. This test method covers the field determination of hydrogen sulfide in the vapor phase of a residual fuel oil sample. It is applicable to liquids with a viscosity range of 5.5 cSt at 40° C to ...
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HYDROGEN SULFIDE IN RESIDUAL FUELS: ASTM D6021
HYDROGEN SULFIDE IN RESIDUAL FUELS: ASTM D6021EXPLANATIONExcessive levels of hydrogen sulfide in the vapor phase above residual fuel oils in storage tanks may result in health hazard, violation of OSHA limits, and public complaint. Also, it can cause corrosion in refining and other production activities. ...
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HYDROGEN SULFIDE IN LIQUEFIED PETROLEUM GAS LPG BY LEAD ACETATE METHOD: ASTM D24
HYDROGEN SULFIDE IN LIQUEFIED PETROLEUM GAS LPG BY LEAD ACETATE METHOD: ASTM D2420(Equivalent Test Methods: IP 401, ISO 8819, DIN 51855 T3, and AFNOR M41-011)EXPLANATIONLiquefied petroleum gas and its combustion products must not be unduly corrosive to the materials that they come in contact with. Hence, ...
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HYDROLYTIC STABILITY OF HYDRAULIC FLUIDS: ASTM D2619
HYDROLYTIC STABILITY OF HYDRAULIC FLUIDS: ASTM D2619EXPLANATIONHydrolytically unstable hydraulic fluids form acidic and insoluble contaminants which can cause hydraulic system malfunctions due to corrosion, valve sticking, or change in the viscosity of the fluid. This test method differentiates the relative ...
