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ISO 20846 Petroleum products - Determination of sulfur content of automotive fue
ISO 20846 Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fuorescence methodWARNING - The use of this International Standard may involve hazardous materials, operations and equipment. This International Standard does not purport to address all of the safety problems ...
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ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels -
ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels - Spectrometric method9 Expression of resultsReport the concentration of alkyl nitrate by name, or, if the specific alkyl nitrate is not known, as calculated based on 2-ethylhexyl nitrate as a percentage volume fraction [%(V/V)], ...
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ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels -
ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels - Spectrometric method7 Test procedure7.1 Pipette 1.0 ml of the test diesel fuel into a 10-ml volumetric flask (5.5) and dilute to the mark with propan-2-ol (4.8).7.2 Pipette 1.0 ml of the test specimen prepared in 7.1 into ...
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ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels -
ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels - Spectrometric method6 Preparation of calibration curve6.1 Not more than 24 h before each determination, prepare calibration curves in accordance with the procedure described in 6.2 to 6.11.6.2 Carefully measure 1.0 ml, 3.0 ...
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ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels -
ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels - Spectrometric method4 ReagentsFor the analysis described in this International Standard, use only reagents of recognized analytical grade, and water complying with the requirements of Grade 3 of ISO 3696.4.1 Acetic acid (CH3COOH), ...
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ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels -
ISO 13759 Petroleum products - Determination of alkyl nitrate in diesel fuels - Spectrometric methodWARNING - The use of this International Standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. ...
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ISO 10370 Petroleum products - Determination of carbon residue - Micro method
ISO 10370 Petroleum products - Determination of carbon residue - Micro method11 Expression of resultsReport results obtained from Formula as "Carbon residue - micro method" to the nearest 0.01 % (m/m).Or report carbon residue micro method on 10 % (V/V) residue to the nearest 0.01 % (m/m).12 Precision12.1 ...
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ISO 10370 Petroleum products - Determination of carbon residue - Micro method
ISO 10370 Petroleum products - Determination of carbon residue - Micro method9 Test procedure9.1 With the oven at a temperature < 100 °C, place the vial holder, loaded as in 8.3, into the oven chamber and secure lid. Purge with nitrogen for at least 10 min at 600 ml/min. Subsequently, decrease the ...
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ISO 10370 Petroleum products - Determination of carbon residue - Micro method
ISO 10370 Petroleum products - Determination of carbon residue - Micro method7 Sample preparation7.1 General instructionsFor samples which consist essentially of distillate material, either follow the preparation as in 7.2 or prepare a distillation residue following a modified procedure of ISO 3405, ...
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ISO 10370 Petroleum products - Determination of carbon residue - Micro method
ISO 10370 Petroleum products - Determination of carbon residue - Micro method5 Reagents and materials5.1 Nitrogen, low oxygen content, i.e. 99.998 % (V/V) or better, with appropriate regulation to provide a delivery pressure of 0 kPa to 200 kPa.NOTE The practical minimum delivery pressure is 140 kPa.6 ...
