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- ASTM D938 Method for Congealing Point of Petroleum Waxes, Including Petrolatum ASTM D938 Method for Congealing Point of Petroleum Waxes, Including Petrolatum1. Scope1.1 This test method covers determination of the congealing point of petroleum waxes, including petrolatum.1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses ...
- ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titratio ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration9. Calculation9.1 Calculate the bromine index as follows:Bromine index = [(A - B)N x 7990]/Wwhere:A = millilitres of bromide-bromate solution required for titration of the sample,B = millilitres of bromide-bromate solution ...
- ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titratio ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration8. Procedure8.1 Switch on the titrimeter and allow the electrical circuits to stabilize in accordance with the manufacturer's instructions.8.2 Cool the titration vessel to 0 to 5°C (32 to 41°F) by circulating a suitable ...
- ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titratio ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration6. Apparatus6.1 Electrometric End Point Titration Apparatus - Any apparatus designed to perform titrations to pre-set end points (see Note 4) may be used in conjunction with a high-resistance polarizing current supply capable ...
- ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titratio ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration4. Summary of Test Method4.1 A known mass of the sample dissolved in a specified solvent is titrated with standard bromide-bromate solution. The end point is indicated by a dead stop electrometric titration apparatus when ...
- ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titratio ASTM D2710 for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration1. Scope1.1 This test method covers the determination of the amount of bromine-reactive material in petroleum hydrocarbons and is thus a measure of trace amounts of unsaturates in these materials. It is applicable to materials ...
- ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method) ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)14. Report14.1 Report the dry vapor pressure equivalent to the nearest 0.1 kPa (0.01 psi) without reference to temperature.14.2 If the sample was observed to be hazy in 8.5, report the test result as in 14.1, followed by the ...
- ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method) ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)12. Procedure12.1 Remove the sample from the cooling bath or refrigerator, dry the exterior of the container with absorbent material, uncap, and insert a chilled transfer tube or syringe (see 9.3). Draw a bubble-free aliquot ...
- ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method) ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)9. Preparation of Apparatus9.1 Prepare the instrument for operation in accordance with the manufacturer's instructions.9.2 Clean and dry the test chamber as required to avoid contamination of the test specimen. Prior to sample ...
- ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method) ASTM D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)6. Apparatus6.1 Vapor Pressure Apparatus - The type of apparatus suitable for use in this test method employs a small volume test chamber incorporating a transducer for pressure measurements and associated equipment for thermostatically ...