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ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl F
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration11. Calculations11.1 Calculate the water content of the sample as follows:water, mass % = CF/W (10)where:C = Karl Fischer reagent required to titrate the sample, mL,F = water equivalence of Karl Fischer reagent, ...
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ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl F
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration10. Procedure10.1 Add the fresh sample solvent to the titration vessel and bring the solvent to end-point conditions as described in 9.2.10.2 Add the crude to the titration vessel immediately after the mixing ...
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ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl F
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration8. Sampling and Test Samples8.1 Sampling, is defined as all the steps required to obtain an aliquot representative of the contents of any pipe, tank, or other system, and to place the sample into the laboratory ...
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ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl F
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration6. Apparatus6.1 Karl Fischer Apparatus, using electrometric end-point. A suggested assembly of the apparatus is described in Annex A2.6.1.1 Presently there is available on the market commercial Karl Fischer ...
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ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl F
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration3. Summary of Test Method3.1 After homogenizing the crude oil with a mixer, an aliquot of the crude, in a mixed solvent, is titrated to an electrometric end-point using Karl Fischer reagent.4. Significance ...
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ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl F
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration1. Scope1.1 This test method covers the determination of water in the range from 0.02 to 2 % in crude oils. Mercaptan and sulfide (S- or H2S) sulfur are known to interfere with this test method (see Section ...
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ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases7. Interpretation of Results7.1 Correct the thermometer at the 95 % boiling point (5 % residue) for the thermometer error (6.7).7.2 Correct the observed temperature for the thermometer error from the observed atmospheric ...
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ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases6. Procedure6.1 Positioning the Thermometer - Add water to the 5 mL line of the weathering tube. Add two grains of charcoal. Insert the armored thermometer as low as possible into the weathering tube. Observe and record the ...
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ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases5. Apparatus5.1 Weathering Tube - A centrifuge tube, cone-shaped, conforming to the dimensions given in Fig. 1 and made of thoroughly annealed heat-resistant glass. The shape of the lower tip of the tube is especially important. ...
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ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases3. Summary of Test Method3.1 Refrigerate the sample by means of a cooling coil and collect 100 mL of liquid in a weathering tube. Allow to evaporate ("weather") at ambient pressure under specified conditions that approximate ...
