Lists of available methods

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IEC 62697-1 in preparation. Sediment. Test method for determination of sediment . Annex C of IEC 60422. II - List of subcontracted analysis. Method title.
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Lists of available methods I – List of analytical methods Method title

Method reference

MOP 44 - Hydrogen content in oils or hydrogen free content by headspace injection and µGC Dissolved or free gas content

Measuring range(1)

Comments

Technical implementation based on standard IEC 60567 (§7.5) and metrological performance at least equivalent to CEI 60567.

MOP 45 - Dissolved gas content in oils or free gas content by ASTM D3612 method C headspace injection and µGC

MOP 20 - Dissolved hydrogen content method (Stripping) Dissolved gas content

Technical implementation based on standard IEC 60567* (§ 7.4) and metrological performance at least equivalent to IEC 60567.

MOP 17 - Dissolved gas content ASTM D3612 method B in oils (Stripping)

Dielectric breakdown voltage

IEC 60156* MOP 9 - Determination of the dielectric breakdown voltage IEC 60814* / ASTM D1533 MOP 15 - Determination of water content

Water content

ISO 6618*/ ASTM D974 MOP 19 - Determination of TAN Total Acidity Number acidity IEC 62021-2* MOP 47 - Determination of acidity

Maximum uncertainty (k = 2)

0.2 – 64 µmol/lol/l 1 – 27 µmol/l 0.1 – 27 µmol/l 0.1 – 27 µmol/l 0.1 – 27 µmol/l 1- 130 µmol/l 0.1 – 1300 µmol/l 1 – 45 µmol/l 1 – 45 µmol/l 1 – 17 µmol/l 1 – 9 µmol/l 0.5 – 8800 µmol/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%

0.4 – 7 µmol/l 0.1 – 240 µmol/l 0.1 – 240 µmol/l 0.1 – 240 µmol/l 0.1 – 240 µmol/l 0.5 – 1200 µmol/l 3 – 12000 µmol/l 0.1 – 400 µmol/l 0.1 – 400 µmol/l 0.1 – 150 µmol/l 0.1 – 80 µmol/l 47 – 78600 µmol/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%

Limitation: expression of results limited to the average value. Raw data from 6 measurements are provided on request

0 – 100 kV

40%

Limitation : injected quantity

1 – 50000 ppm

8%

Limitation : None

0.01- pas de limite mg KOH/g

37%

Limitation : None

0.01- pas de limite mg KOH/g

19% 2-Furfuraldehyde 5-hydroxy2methylfurfuraldehyde 5-methyl2furfuraldehyde 2-acetylfuran furfuryl alcohol

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

0.02 - 11 ppm

Polychlorinated biphenyls content

IEC 61619* / ASTM D4059 MOP 12 - Method of PCBs and PCBTs determination by GC

Limitation : 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%

Limitation : automated or manual extraction

10-24000 ppm

PCT

10%

Furanic compounds content

NF EN 12766-3* Polychlorinated MOP 50 - Method of PCT terphenyles content (PCT) determination by GC

(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 (www.cofrac.fr / n°1-2111).

Laboratoire OKSMAN SERAPHIN S. A., Alstom Grid Group legal subsidiary ** Parc Technologique du Canal 8 rue Giotto 31 520 Ramonville FRANCE Tél. +33(0) 562 190 560 Fax +33(0) 562 190 889 www.laboratoireoksman.com List of available methods.doc – december 2011- version 1

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I - List of analytical methods (next) Method title Dielectric dissipation factor

Corrosive sulphur

Method reference

IEC 60247 (ASTM D924)

Insulating liquids – Measurement of relative permittivity, dielectric factor (tan δ) and d.c. resistivity Insulating liquids – Test method for detection of potentially corrosive sulphur in used and unused insulating oil

IEC 62535

(Limitation : because the test is based on visual assessment, 20% of cases are not interpretable)

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

Flash point

Degree of Polymerization

Petroleum products – Transparent and opaque liquids Determination of kinematic viscosity and calculation of dynamic viscosity Determination of flash and fire points – Cleveland open cup method Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials.

ISO 3104 (ASTM D445) ISO 2592 (ASTM D92) 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 Synthetic organic esters for electrical purposes – Guide for maintenance of transformer esters in equipment

IEEE C57.104 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 C57.147

Guide for the interpretation of gases generated in silicone-immersed transformers

IEEE C57.146

** A deontology charter attests impartiality, confidentiality and operational independence of the Laboratory

Laboratoire OKSMAN SERAPHIN S. A., Alstom Grid Group legal subsidiary ** Parc Technologique du Canal 8 rue Giotto 31 520 Ramonville FRANCE Tél. +33(0) 562 190 560 Fax +33(0) 562 190 889 www.laboratoireoksman.com List of available methods.doc – december 2011- version 1