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ISO 2719 Determination of flash point - Pensky-Martens closed cup method
ISO 2719 Determination of flash point - Pensky-Martens closed cup method7 Apparatus preparation7.1 GeneralFollow the manufacturer's instructions for the correct setup, calibration, verification and operation of the apparatus including the integral barometer (if fitted) and temperature measuring device ...
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ISO 2719 Determination of flash point - Pensky-Martens closed cup method
ISO 2719 Determination of flash point - Pensky-Martens closed cup method5 Chemicals and materials5.1 Cleaning solvent, for removal of traces of sample from the test cup and cover.The choice of solvent will depend upon the previous material tested and the tenacity of the residue. Low volatility aromatic ...
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ISO 2719 Determination of flash point - Pensky-Martens closed cup method
ISO 2719 Determination of flash point - Pensky-Martens closed cup method1 ScopeThis International Standard describes three procedures, A, B and C, using the Pensky-Martens closed cup tester, for determining the flash point of combustible liquids, liquids with suspended solids, liquids that tend to form ...
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IEC 62535 Insulating liquids - Test method for detection of potentially corrosiv
IEC 62535 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil6.4 ResultIf, for both of the duplicate samples, a positive result is found for copper, or paper, or both, the oil shall be reported as potentially corrosive. If, for both samples, ...
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IEC 62535 Insulating liquids - Test method for detection of potentially corrosiv
IEC 62535 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil6 Inspection and interpretation6.1 GeneralAll inspections should be carried out under very good light conditions. Bright daylight or strong fluorescent lighting has been proven to ...
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IEC 62535 Insulating liquids - Test method for detection of potentially corrosiv
IEC 62535 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil4 SamplingSamples shall be taken, following the procedure given in IEC 60475. Ensure that the test portion is representative by thoroughly mixing.5 Procedure5.1 PrincipleA piece ...
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IEC 62535 Insulating liquids - Test method for detection of potentially corrosiv
IEC 62535 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil1 ScopeThis International Standard specifies a test method for detection of potentially corrosive sulphur in used and unused mineral insulating oil.Most recent failures due to corrosive ...
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IEC 62021-2 Insulating liquids - Determination of acidity - Part 2: Colourimetri
IEC 62021-2 Insulating liquids - Determination of acidity - Part 2: Colourimetric titration9 Calculation of resultsCalculate, for each determination, the acidity to the nearest 0,005, expressed as mg KOH/g of oil, using Equation (3):whereV1 is the volume of alcoholic KOH solution used to titrate the ...
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IEC 62021-2 Insulating liquids - Determination of acidity - Part 2: Colourimetri
IEC 62021-2 Insulating liquids - Determination of acidity - Part 2: Colourimetric titration8 ProcedureRinse and fill the burette with 0,05 mol/l alcoholic potassium hydroxide solution (5.1).Standardize the alcoholic potassium hydroxide solution at least every two weeks against potassium hydrogen phthalate ...
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IEC 62021-2 Insulating liquids - Determination of acidity - Part 2: Colourimetri
IEC 62021-2 Insulating liquids - Determination of acidity - Part 2: Colourimetric titration5 ReagentsOnly reagents of recognized analytical grade and de-ionized water or water of equivalent purity shall be used.5.1 Titration reagentStandard alcoholic solution 0,05 mol/l potassium hydroxide.Add 3,0 g ...
