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ISO 3924 Petroleum products - Determination of boiling range distribution - Gas
ISO 3924 Petroleum products - Determination of boiling range distribution - Gas chromatography 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 associated ...
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ISO 4264 Petroleum products - Calculation of cetane index of middle-distillate f
ISO 4264 Petroleum products - Calculation of cetane index of middle-distillate fuels by the four variable equation7 Expression of resultsReport the result to the nearest 0.1 as the cetane index by four-variable equation.8 Precision8.1 The calculation of the cetane index from measured density at 15 °C ...
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ISO 4264 Petroleum products - Calculation of cetane index of middle-distillate f
ISO 4264 Petroleum products - Calculation of cetane index of middle-distillate fuels by the four variable equation5 Procedure5.1 Determine the density at 15 °C of the sample, to the nearest 0.1 kg/m3, by the procedure described in ISO 3675 or ISO 12185, using the corrections given in ISO 91 if appropriate.5.2 ...
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ISO 4264 Petroleum products - Calculation of cetane index of middle-distillate f
ISO 4264 Petroleum products - Calculation of cetane index of middle-distillate fuels by the four variable equationWARNING - Use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all the safety problems associated with its use. It is ...
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ISO 3987 Petroleum products - Lubricating oils and additives - Determination of
ISO 3987 Petroleum products - Lubricating oils and additives - Determination of sulfated ash10 Expression of resultsReport the result to the nearest 0.001 % (m/m) for samples with sulfated ash contents below 0.02 % (m/m), and to the nearest 0.01 % (m/m) for those having higher levels.11 PrecisionThe ...
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ISO 3987 Petroleum products - Lubricating oils and additives - Determination of
ISO 3987 Petroleum products - Lubricating oils and additives - Determination of sulfated ash8 Procedure8.1 Select an evaporating dish or crucible (6.1) of suitable size according to the quantity of sample necessary (see 8.3).8.2 Heat the evaporating dish or crucible in the furnace (6.2) at 775 °C for ...
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ISO 3987 Petroleum products - Lubricating oils and additives - Determination of
ISO 3987 Petroleum products - Lubricating oils and additives - Determination of sulfated ash5 ReagentsFor the analysis described in this International Standard, use only reagents of recognized analytical reagent grade and water complying with the requirements of grade 3 of ISO 3696:1987.5.1 Low-ash mineral ...
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ISO 3987 Petroleum products - Lubricating oils and additives - Determination of
ISO 3987 Petroleum products - Lubricating oils and additives - Determination of sulfated ashWARNING - 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 associated with its ...
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ISO 20884 Petroleum products - Determination of sulfur content of automotive fue
ISO 20884 Petroleum products - Determination of sulfur content of automotive fuels - Wavelength-dispersive X-ray fluorescence spectrometry11 Expression of resultsReport the sulfur content of the sample to the nearest 0.1 mg/kg between 5 mg/kg and 99 mg/kg, and to the nearest 1 mg/kg between 100 mg/kg ...
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ISO 20884 Petroleum products - Determination of sulfur content of automotive fue
ISO 20884 Petroleum products - Determination of sulfur content of automotive fuels - Wavelength-dispersive X-ray fluorescence spectrometry10 ProcedureCAUTION - Some samples such as process rundown streams can contain finely dispersed iron sulfide which can drop onto the cell window, giving erroneously ...
