Lists of avaible methods.doc - version 1

1 1/2 Laboratoire OKSMAN SERAPHIN S. A., Alstom Grid Group legal subsidiary ** Parc Technologique du Canal 8 rue Giotto 31 520 Ramonville FRANCE T l. +33(0) 562 190 560 Fax +33(0) 562 190 889 List of available december 2011- version 1 .. - 1 - Lists of available methods I List of analytical methods Method title Method reference Comments Measuring range(1) Maximum uncertainty (k = 2) MOP 44 - Hydrogen content in oils or hydrogen free content by headspace injection and GC Dissolved or free gas content MOP 45 - Dissolved gas content in oils or free gas content by headspace injection and GC Technical implementation based on standard IEC 60567 ( ) and metrological performance at least equivalent to CEI 60567. ASTM D3612 method C 64 mol/lol/l 1 27 mol/l 27 mol/l 27 mol/l 27 mol/l 1- 130 mol/l 1300 mol/l 1 45 mol/l 1 45 mol/l 1 17 mol/l 1 9 mol/l - 8800 mol/l Hydrogen Methane Ethane Ethylene Acetylene Carbon monoxide Carbon dioxide Propane Propylene Propadiene Propyne Oxygen Nitrogen 9% 9% 10% 8% 9% 15% 7% 7% 7% 6% 6% 11% 15% MOP 20 - Dissolved hydrogen content method (Stripping) Dissolved gas content MOP 17 - Dissolved gas content in oils (Stripping) Technical implementation based on standard IEC 60567* ( ) and metrological performance at least equivalent to IEC 60567.

2 ASTM D3612 method B 7 mol/l 240 mol/l 240 mol/l 240 mol/l 240 mol/l 1200 mol/l 3 12000 mol/l 400 mol/l 400 mol/l 150 mol/l 80 mol/l - 47 78600 mol/l Hydrogen Methane Ethane Ethylene Acetylene Carbon monoxide Carbon dioxide Propane Propylene Propadiene Propyne Oxygen Nitrogen 12% 16% 9% 8% 17% 9% 14% 10% 10% 11% 11% 15% 10% Dielectric breakdown voltage IEC 60156* MOP 9 - Determination of the dielectric breakdown voltage Limitation: expression of results limited to the average value. Raw data from 6 measurements are provided on request 0 100 kV 40% Water content IEC 60814* / ASTM D1533 MOP 15 - Determination of water content Limitation : injected quantity 1 50000 ppm 8% ISO 6618*/ ASTM D974 MOP 19 - Determination of acidity Limitation : None pas de limite mg KOH/g 37% TAN Total Acidity Number IEC 62021-2* MOP 47 - Determination of acidity Limitation : None pas de limite mg KOH/g 19% Furanic compounds content IEC 61198* / ASTM D5837 MOP 13 - Methods for determination of 2-furfural and related compounds Limitation : exclusion of the extraction step according to defined criteria - 11 ppm 2-Furfuraldehyde 5-hydroxy2-methylfurfuraldehyde 5-methyl2-furfuraldehyde 2-acetylfuran furfuryl alcohol 19% Polychlorinated biphenyls content IEC 61619* / ASTM D4059 MOP 12 - Method of PCBs and PCBTs determination by GC Limitation.

3 Automated or manual extraction 1- 9900 ppm PCB 9% Tetrachlorobenzyltoluene content NF EN 12766-3* MOP 12- Method of PCBs and PCBTs determination by GC Limitation : automated or manual extraction 5 -9900 ppm PCBT 2% Polychlorinated terphenyles content (PCT) NF EN 12766-3* MOP 50 - Method of PCT determination by GC Limitation : automated or manual extraction 10-24000 ppm PCT 10% (1)The measuring range is the limit of quantification and maximum limit of calibration. * The COFRAC accreditation certifies the competence of the laboratory for analysis identified ( / n 1-2111). >> >> >> >> TheTheTheThe LOSLOSLOSLOS informs you informs you informs you informs you 2/2 Laboratoire OKSMAN SERAPHIN S. A., Alstom Grid Group legal subsidiary ** Parc Technologique du Canal 8 rue Giotto 31 520 Ramonville FRANCE T l. +33(0) 562 190 560 Fax +33(0) 562 190 889 List of available december 2011- version 1 I - List of analytical methods (next) Method title Method reference Dielectric dissipation factor Insulating liquids Measurement of relative permittivity, dielectric factor (tan ) and resistivity IEC 60247 (ASTM D924) Corrosive sulphur Insulating liquids Test method for detection of potentially corrosive sulphur in used and unused insulating oil (Limitation.)

4 Because the test is based on visual assessment, 20% of cases are not interpretable) IEC 62535 Colour Petroleum products Determination of colour (ASTM Scale) NF ISO 2049 (ASTM D1500) Particles Insulating liquids - Methods for counting and sizing particles IEC 60970 + ISO 4406 / (ASTM D6786) Irgamet (passivator content) Detection and determination of specified additives in mineral insulating oils Annex B of IEC 60666 Interfacial tension Standard test method for interfacial tension of oil against water by ring method ASTM D971 DBDS content Quantitative determination of corrosive sulfur compounds in insulating liquids Part 1 : Method for quantitative determination of DiBenzyl DiSulfide (DBDS) IEC 62697-1 in preparation Sediment Test method for determination of sediment Annex C of IEC 60422 II - List of subcontracted analysis Method title Method reference Metals Liquid petroleum products - Determination of additive elements, wear metals and contaminants in unused and used lubricating oils Method by inductively coupled plasma atomic emission spectroscopy (ICP/AES) NF T 60 106 (ASTM D5185) Density Crude petroleum and petroleum products Determination of density Oscillating U-tube method ISO 12185 (ASTM D4052) Viscosity Petroleum products Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity ISO 3104 (ASTM D445) Flash point Determination of flash and fire points Cleveland open cup method ISO 2592 (ASTM D92)

5 Degree of Polymerization Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials. IEC 60450 (ASTM D4243) III List of interpretation methods of test results Method title Method reference Mineral oil-impregnated electrical equipment in service Guide to the interpretation of dissolved and free gases analysis IEC 60599 Mineral oil-impregnated electrical equipment Supervision and maintenance guidance IEC 60422 Guide for the interpretation of gases generated in oil-immersed transformers IEEE Synthetic organic esters for electrical purposes Guide for maintenance of transformer esters in equipment IEC 61203 Natural (Vegetable oil) ester fluids used in electrical apparatus ASTM D6871 Guide for acceptance and maintenance of natural ester fluids in transformers IEEC Guide for the interpretation of gases generated in silicone-immersed transformers IEEE ** A deontology charter attests impartiality, confidentiality and operational independence of the Laboratory