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
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