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When sampling oil with 50ml glass syringes, fill up to the 50ml mark every time. This ensures consistency and the maximum amount of fluid available for analysis.

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Insulating Fluid Packages
TechCheck
NTT PDF Files Acrobat
Sample Data Sheet
Sample Data Sheet (doc format)
Sampling Instructions
Chain of Custody Form
Sample Data Label
PCB Labels
DGA Technical Paper
NTT Oil Quality Diagnostics

INSULATING FLUID TESTING
Dissolved Gas Analysis (DGA)
Oil Quality Assessment
PCB Analysis
Metals in Oil
Sampling Procedures, Cylinders
Sampling Procedures, Syringes

PAPER INSULATION
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Degree of Polymerization

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  Cellulose Condition
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Our site continues to evolve and we look forward to receiving your suggestions about how we may improve our site and services.
New Product
DGA Diagnostic
Reporting Software

DGA Expert Systems Software v3.0

EXPERT DGA
DGA System conforming to ASTM D3612-A


NTT

Insulating Fluid
  • 2000 Insulating Fluid Types
  • 2001 Insulating Fluids - Pros & Cons
  • 2002 History and Types
Dissolved Gas Analysis
  • 2101 DGA Sampling Procedures for Metal Cylinders
  • 2102 Dissolved Gas Analysis of Mineral Fluids
  • 2103 DGA-Example 1
  • 2104 DGA Sampling Procedures for Glass Syringes
  • 2105 DGA onlilne diagnostic tools
  • 2106 Er. Lee Wai Meng discusses DGA
Physical, Chemical, Electrical Testing
  • 2201 Liquid Insulation Maintenance
  • 2202 Oxidation Inhibitors Background
  • 2203 Viscosity
  • 2204 Water in Insulating Fluids
  • 2205 Interfacial Tension
  • 2206 Neutralization Number
  • 2207 Color Number and Visual Exam
  • 2208 Dielectric Strength
  • 2209 Power Factor
  • 2210 Influence of Particles in Oil
  • 2211 Oxidation Inhibitors Technical
  • 2212 Flash and Fire Point
PCBs
  • 2301 PCB Testing at NTT
  • 2302 U.S. imports PCBs from Canada
  • 2304 Clor-N-Oil PCB field screening kits
  • 2306 PCB Testing
  • 2307 The Health Effects of PCB
  • 2308 PCB - Retrofill or Replacement
  • 2309 United Nations - Reclassification & Disposal
  • 2311 The EPA 1998 PCB Cancer Dose Response Assessment
  • 2312 EPA PCB in Electrical Equiment Q&A Manual
  • 2313 PCB Wipe Sampling as Recommended by the EPA
  • 2314 Monsanto MSDS for PCBs
Esters
  • 2901 History
  • 2902 Performance & Application
  • 2903 IEEE/PES Ester-based Fluids
  • 2904 Aging of Paper Insulation in Natural Ester Dielectric Fluid
  • 2905 Waverly Light & Power: Evolution of Esters
  • 2906 Some oil quality values from in-service transformers
  • 2907 Some DGA values from in-service transformers
Perchloroethylene
  • 3001 History
  • 3002 What is Perchloroethylene?
  • 3003 What is Trichloroethylene?
Software
  • 2600 DGA Expert Systems Software
  • 2601 Data Management of Your Test Data
  • 2602 Delta-X - Transformer Oil Analyst
  • 2603 NTT On-Line Diagnostics
Metals Testing
  • 2401 Metals Testing at NTT
Insulating Paper
  • 2450 Furan Testing
  • 2451 Degree of Polymerization of Cellulose
Reconditioning & Filtration
  • 2801 Natural Precipitation
  • 2802 Filter presses
  • 2803 Reconditioning Insulating Fluids

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What's New?
29 Aug 2013
Updated Sample Data Sheet (PDF)
29 Aug 2013
Updated Sample Data Sheet (DOC)

Standards Organizations

The IEEE promotes the engineering process of creating, developing, integrating, sharing, and applying knowledge about electro and information technologies and sciences for the benefit of humanity and the profession.

ISO is a network of the national standards institutes of 153 countries, on the basis of one member per country, with a Central Secretariat in Geneva, Switzerland, that coordinates the system.

ASTM International is one of the largest voluntary standards development organizations in the world-a trusted source for technical standards for materials, products, systems, and services. Known for their high technical quality and market relevancy, ASTM International standards have an important role in the information infrastructure that guides design, manufacturing and trade in the global economy.

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes international standards for all electrical, electronic and related technologies. These serve as a basis for national standardization and as references when drafting international tenders and contracts.
Regulating Agencies
Code of Federal Regs
California EPA
Cal Air Res Board
PCB Home Page at EPA
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