We have a highly experienced in-house transformer oil laboratory, testing in accordance with IEC and ASTM standards.
Our laboratory equipment is of the best quality and is regularly maintained to ensure that results are accurate. In addition, we participate in round-robin proficiency testing to ensure that our tests and their methods are on par with international standards.
With our bespoke on-line data management and reporting system we are able to reduce reporting timeframes. This system is undergoing upgrading and will be implemented in 2017Q2.
We also provide sampling services and on-site testing anywhere you require in Sub-Saharan Africa.
Below is a quick reference to mineral oil tests we offer and the oil sample requirements:
|
Ref |
Test Description |
Test Method |
Typical Sample Volume Recommended |
Typical Sample Container Recommended |
|
1. |
Colour |
ASTM 1500 |
500ml |
Metal tin |
|
2. |
Corrosive sulphur |
DIN 51353 |
1 litre |
Metal tin |
|
3. |
Density |
ISO 3675 |
500ml |
Plastic bottle |
|
4. |
Dielectric strength (kV) |
IEC 60156 |
1 litre |
Metal tin |
|
5. |
Flash point |
ASTM D93 |
500ml |
Metal tin |
|
6. |
FTIR – Additives present (includes inhibitor and tetralin content) |
DIN 51452 / 51453 |
300ml |
Plastic bottle |
|
7. |
Furanic analysis, oil |
IEC 61198 |
500ml |
Metal tin |
|
8. |
Gas, head space (GC) |
IEC 60599 |
1 litre |
Metal tin |
|
9. |
Inhibitor* (Anti-oxidant content) |
IEC 60666 |
500ml |
Metal tin |
|
10. |
Interfacial tension |
ASTM 971 |
500ml |
Plastic bottle |
|
11. |
Moisture in insulating paper |
IEC 60814 |
500ml |
Certified glass bottle |
|
12. |
Moisture (Karl Fischer) |
IEC 60814 |
500ml |
Metal tin |
|
13. |
Neutralisation / acidity |
IEC 60814 |
500ml |
Metal tin |
|
14. |
Oxidation stability, inhibited RBOT |
ASTM D2272 |
500ml |
Metal tin |
|
15. |
Oxidation stability, uninhibited oil |
ASTM D2440 |
1 litre |
Metal tin |
|
16. |
Passivator content |
NT24 |
1 litre |
Metal tin |
|
17. |
PCB analysis (GC) |
IEC 61619 |
20ml |
Metal tin |
|
18. |
PAH / PCA,% mass |
BS 2000 |
1 litre |
Metal tin |
|
19. |
Particle count |
ASTM D7596 |
500ml |
Certified glass bottle |
|
20. |
Pour point |
ISO 3016 |
500ml |
Metal tin |
|
21. |
Resistivity at 90oC |
DIN 51353 |
500ml |
Metal tin |
|
22. |
Silicon (RDE) |
ASTM D6595 |
500ml |
Plastic bottle |
|
23. |
Tan delta at 90oC |
DIN51353 |
500ml |
Metal tin |
|
24. |
Total acidity |
IEC 61125 |
500ml |
Metal tin |
|
25. |
Viscosity at -15 oC |
DIN 51353 |
500ml |
Metal tin |
|
26. |
Viscosity at 40 oC |
DIN 51353 |
500ml |
Metal tin |