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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 method9 Calibration9.1 Analysis sequence protocol9.1.1 Define and use for all runs a predetermined schedule of analysis events to achieve maximum reproducibility. The schedule shall include cooling the oven ...
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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 method7 SamplingUnless otherwise specified, samples shall be taken by the procedures in accordance with ISO 3170 or ISO 3171.8 Preparation of apparatus8.1 Column preparation8.1.1 GeneralAny satisfactory method ...
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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 method5 Reagents and materials5.1 Stationary phase for columns, non-polar, that elutes hydrocarbons in boiling-point order.NOTE The following materials have been used successfully as liquid phases:a) for packed ...
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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 ...
