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ISO 12185 Crude petroleum and petroleum products - Determination of density - Os
ISO 12185 Crude petroleum and petroleum products - Determination of density - Oscillating U-tube method1 ScopeThis International Standard specifies a method for the determination, using an oscillating U-tube density meter, of the density of crude petroleum and related products within the range 600 kg/m3 ...
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ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tensio
ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tension of oil against water - Ring method10 Expression of results10.1 Method of calculationThe interfacial tension, δ, expressed in millinewtons per metre (mN/m), is given by the formulaδ = M x FwhereM is the calibrated scale ...
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ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tensio
ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tension of oil against water - Ring method9 Procedure9.1 Determine the density of the test portion (clause 8) to the nearest 0.001 g/ml at 25 °C.9.2 Introduce 50 to 75 ml of distilled water at a temperature of 25 +/- 1 °C to ...
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ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tensio
ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tension of oil against water - Ring method4 Apparatus4.1 Leconte du Nouy tensiometer, with platina ring of either 60 or 40 mm nominal circumference.4.2 Ring, of fine platinum wire in a nearly true circle of 40 or 60 mm circumference ...
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ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tensio
ISO 6295 Petroleum products - Mineral oils - Determination of interfacial tension of oil against water - Ring method1 Scope and field of applicationThis International Standard specifies a method for the measurement, under non-equilibrium conditions, of the interfacial tension of mineral oils against ...
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IEC/TR 61946 Mineral insulating oils - Characterization of paraffinic/naphthenic
IEC/TR 61946 Mineral insulating oils - Characterization of paraffinic/naphthenic nature - Low temperature differential scanning calorimetry (DSC) test method9 ProcedureInto a clean specimen holder, weigh 10 mg +/- 2 mg of the sample to an accuracy of 0.01 mg.Seal the specimen holder with a lid under ...
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IEC/TR 61946 Mineral insulating oils - Characterization of paraffinic/naphthenic
IEC/TR 61946 Mineral insulating oils - Characterization of paraffinic/naphthenic nature - Low temperature differential scanning calorimetry (DSC) test method6 ApparatusThe test method uses the following apparatus:a) differential scanning calorimeter having the following performance:- heating or cooling ...
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IEC/TR 61946 Mineral insulating oils - Characterization of paraffinic/naphthenic
IEC/TR 61946 Mineral insulating oils - Characterization of paraffinic/naphthenic nature - Low temperature differential scanning calorimetry (DSC) test method1 ScopeThis technical report offers a test method for the classification of mineral insulating oils as either paraffinic or naphthenic, by means ...
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ISO 3696 Water for analytical laboratory use - Specification and test methods
ISO 3696 Water for analytical laboratory use - Specification and test methods7 Methods of testIt is essential that the determinations specified in this clause are carried out in a dust-free, pure atmosphere and that suitable precautions are taken to prevent any contamination of the sample and test portions.7.1 ...
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ISO 3696 Water for analytical laboratory use - Specification and test methods
ISO 3696 Water for analytical laboratory use - Specification and test methods5 SamplingA representative sample of the material of not less than 2 litres shall be taken from the bulk for the purpose of examination in accordance with this specification.NOTE This sample is not used for measurements of conductivity ...
